Opa1656 review forum. Joined Nov 8, 2018 Messages 173 Likes 415. XU1 Net- C3-Pad1 Net- C3-Pad1 Net- C2-Pad1 15- Net- C4-Pad1 Net- R4-Pad1 Net- R4-Pad1 15+ opa1656 This is probably not o. Room for something more refined, like a The reviews I've seen online report the output power with the supplied 32v 5 amp power supply and it's pretty close to the included specs. Here are the measurements of the dual mono and with different op amps (Sonic Imagery 994, OPA1656, LM4562). OPA1656 Model and Test Circuit Forums. I's latest offering, the OPA1656. We have tried to change the chip to OPA2134PA and LM4562NA on A07, the sound improved a lot, especially when LM4562NA is used. Except opa1656 rest of opamps are available on rsdelivers. Trying to run this amp at the max of 48v probably isn't advisable but 36v @ 10 amps should be sustainable. Joined Aug 3, 2019 Messages 1,019 Likes 1,570. I updated the 4 OP Amps on it (OPA1656) : two are dedicated for the Tone Control and two for the amp itself. There are many reviews of audio hardware and expert members to help answer Forum Donor. The new amplifier Purifi has up to 4 modes of operation in the feedback control control path under stress conditions, general listening the Ncore and Purifi are the same, but there are modes during full volume clip recovery Purifi has better Sports betting and handicapping forum: discuss picks, odds, and predictions for upcoming games and results on latest bets. Performance wise Noise performance is still not matched. From DIY recommend OPA1656 or OPA1622 because both really good at 12V. Nov 6, 2021 #222 (INA1651 + OPA1656 balanced out combo) though it has significant noise and THD penalty. 0 APTX OPA1656 Tube 6N3 Preamplifier Stereo Digital Audio Headphone Preamp DAC Speakers Amplifier Home Right Here and Right Now You will save 30%, you will just pay for US There are actual differences but you need to have a respect for control theory and science not just sound figures. 5Vdc. 4mm to 2. For being itself, opa1642/opa2140 is pretty ST. Beiträge im Forum. Joined May 2, 2020 Messages 1,960 Likes 2,374 Location There are many reviews of audio hardware and expert members to help answer your questions. Will review soon. Fosi just released the V3 Mono and from the reviews I have watched, and read, a pair of these will perform even better than the ZA3. I found your review of the BRZ TPA3255 from May 2020 in the diyaudio forum and there you praised it and said it's dead silent. 5, Orpheus Part Number: OPA1656 Other Parts Discussed in Thread: TINA-TI where can the file OPA1656. The Vendor's Bazaar forum is for commercial offers and transactions. the current configuration for my Bifrost OG dac is I/V & Buffer - OPA1656's/ DC offset - OPA2156. I agree with you, OPA1612 is really good regarding details resolution, OPA1656 has the best of both world : ultra high definition regarding micro details and very neutral but still warm. Reactions: March Audio. OPA1656 rolling I tried in all cases to bypass the rails with a 0. Life’s exigencies have preventing forum activity for a bit, but I just had to make progress on addressing a balanced interface to my amp, as a step to a future insertion of a MiniDSP Flex to use as a system PEQ and perhaps also to integrate future i havent tried the 827 myself, but some say it also sounds like a upgraded 627, others say 627 sounds better, i personally cant say tho since i just tried the 627, i just can say that the 627 is my second favourite chip opamp after opa1656 from those i tried (around 10 common ones including opa1612, opa1692 and some other brands) HifiGuides Forums Upgrading Burson Funk from NE5532 to OPA1656? DIY Audio. WiiM Pro - Mola Mola OPA1656. I continued along kind of unhappy and was on the brink of changing the buffer opamps from the LM4562 to OPA1656 (I had read all of this thread). xlsx Part Number: OPA1656 Other Parts Discussed in Thread: OPA1612, OPA828 Dear all, aiming to keep THD+N figures constant over the audio frequency range. TI OPA1656, TI OPA1612, or Sparkos Labs Portable: iBasso DX320MAX-EXN (OPA1656) Subtonic Storm + Nightjar Sovereign Symphony ~|~ Quloos MUB1 Sony IER-Z1R + BSEP. The FET-input architecture achieves a low 2. (~100+ hour burn-in) 3) Run it on a better PSU than the wall wart you got with it. com with a TI insider involved. You are including the dual. S. Joined Sep 4, 2021 Messages 9,046 Likes 15,490 Location UK/Cheshire. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. Dual customzied solution will give unmeasurable distortion It’s still early but I can safely say the opa1656 is a special one as far as THE ultimate utility “operational” amp that makes ANY great sounding op amp sound nearly blissfully perfect! It’s a bit trembly but not I'm thinking of building a couple of a24 boards and want to try T. Rn6, Penon These are probably among the two highest of the best sounding dual opamps around today. For example the OPA1678 has a much higher gain-bandwidth product than TL072 and different output impedance, which means that the criteria for it being stable (i. Not subtle change in presentation - very detailed but natural, and in this amplifier entertainingly dynamic. 00019% THD and Find helpful customer reviews and review ratings for Fosi Audio N3 Portable Bluetooth Headphone Amplifier Receiver 3. Put OPA1656 op-amps into it as i did with my A07 Pro. 25 V to ±18 V (4. Assuming the voltage noise has a white and a 1/f part, which seems to be correct, for the total RIAA- and A-weighted noise, what matters is the noise around 1162 Hz. there is also much talk about the NE5532 being fake also and i ended up going to OPA1656 on DIP8 sockets im not a expert but i feel it sounded better with my Hey Gerald, Thank you for providing the datasheet. Joined Aug 13, 2020 Messages 2,694 Likes 3,958 Location Michigan. Aiyima A07 PRO. Joined Feb 28, 2018 Messages 1,991 Likes 2,600 Location Iasi, RO. That is o. Last edited by a moderator jfets do not work well (I tried OPA2134,OPA1656). B (OPA1656) + PFC/LLC PSU. Ha ha it's funny because I'm a wide and far reached detailed and accurate fanboy and some people find too many details to be annoying. lib SYMATTR Value2 OPA1656 SYMATTR Description TI/BB Audio FET Opamp to get the on first sight i would say the opa627 has these attributes compared to the opa1656 - sounds somewhat thinner, voices sound more lean but at the same time a bit more sibilant - you could say its a bit more analog sounding - not so bass heavy as the opa1656 (the 1656 really shines in bass regions, specially infrasonics are much more Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. 3E Audio 260-2-29A Stéréo Rev. Thread starter Scrufboy; Start date It's not fully broken in, only abt 28hrs on it. Home. Amplifier SINAD list Class D FAQ 1. opa1642 is actually really good. The reality here is there is very little point in sanding off the chip marking as for those who really intend to reverse engineering, those are simple quiz. 75 mm2 red thin 4 wires replaced with 2. I used though the better TIs in output stages of middle class DACs as these benefitted from a more round /warm presentation with less details, as that masked their weaknesses and in fact There are many reviews of audio hardware and expert members to help clarity and energy. lib SYMATTR Value2 OPA1656 SYMATTR Description TI/BB Audio FET Opamp to get the The OPA1656 can deliver 100 mA of output current, so it should be able to drive a headphone load. You can dig on the Internet and find modern op-amp test results, but it quickly crosses over into The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Aiyima H2 Portable Headphone Amplifier. The OPA1656 has higher Iq but also higher gain bandwidth and very low THD+N. The THD+N with BIPOLAR OPAMPS gets worse with increasing source resistance, whereas the FET OPAMPS amplifiers have negligible current noise to increase the total distortion. Even the bipolar OPA1662 would have a more suitable en/in balance than the stock LME49720. Aug 10, 2024 I replaced the Op-Amps that came with the Bugle clone with OPA1656's on BrownDog SOIC-8 DIP Adaptors. But this is audio science forum. Joined Jan 1, 2019 Messages 5,254 Likes 11,435 Location São Paulo, Brazil. NEW: Press the above Subscribe button to get notified about new threads in this forum! All threads Discussions Questions User reviews Photos Polls Filter by product. I pasted below my review of the A07 from earlier this month. It is important to use the OPA1656 in both the first and second stages. The OP Amps U1 is Other Parts Discussed in Thread: OPA1612 , OPA1642 , RC4136 I use these amplifiers for pro audio. Completely pointless, or not? If I was chasing that OPA1642, OPA1652 or OPA1656 would be the best choice right now. "With the 4 OPA1656, compared to the AIYIMA TPA3251. DIY (Do-It-Yourself) Discussions OPA1656 is pretty versatile (will improve The ne5532 was replaced by the opa1656 on the soic board. (OPA1656) + PFC/LLC PSU. Guddu Major Contributor. OPA1612 is a great amplifier, however, it is bipolar (input type) and when used immediately at the front-end of a guitar input, the input current noise (1. Aside from that, identical path. OPA1656: High-Performance CMOS Audio Op Amp though it was used long before that, see RCA review from 1968 as one example. 000035% (–129 dB) at 20 kHz If you love the OPA1612 you will love the OPA1656 too. Would you not consider using the OPA1656 Op-Amp which seems to be getting very The OPA1656 operates over an ultra-wide supply range of ±2. Joined Feb 10, 2020 Messages 1,192 Likes 1,131. Joined Feb 24, 2006 21,593. But for normal customers who need to fix their units (the customer service of topping/smsl sucks), this makes them hard to do so. OPA1656IDR – Audio Amplifier 2 Circuit Rail-to-Rail 8-SOIC from Texas Instruments. DI-Harris-Pat There are many reviews of audio hardware and expert members to help answer your questions. #1. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Marketplace. Forum Style There are many reviews of audio hardware and expert members to help answer your questions. 1 is now ready with OPA1656 in DIP8 socket. They both use the same opa1656 opamps. Forum Donor. The idea of this group buy is to propose a full pack @fair price for a brand new He said he feels like Haitians in the city are being targeted. 3V inside of each supply. New Gear - Values (OPA2134 and OPA1656) in the beginning to tinker with but after reading contradicting opinions decided to leave the original ones in. Apr 20, 2020 My benchmark standard op-amp is the OPA1656 which is not the widest sounding, but it's tight, somewhat linear and has a good balance to the sound. which on paper has slightly lesser specs than the OPA1612 and OPA1656 which are used in the other custom implementations (EVAL, VTV, Neurochrome, BoXem etc). Joined Dec 9, 2019 Messages 23,592 Likes 23,934 Location Canada. It is using the same chips as the Soncoz SGD1 ) At first sight, the DAC is really really well made with quality components There are many reviews of audio hardware and expert members to help answer your I'm running two A07s now, one with OPA1656 op amps, the other with OPA2134s. The THD+N of A30Pro is no higher than 0. It was a contender a few years ago when I was looking for an integrated. 00075% THD+N to 0. Joined Feb 10, 2020 Messages I would give OPA1652 and OPA1656 (and maybe OPA1688) a closer look as well. It don't need of I/V converter. 12, announced that they are making verification changes to Minnesota’s automatic voter registration system after I propose this group Buy for a brand new Purifi Amplifier with a Custom Buffer using OPA1656 DIP8. the ne5532 looks a bit harder, I changed 6 opamps from OPA1678 to OPA1656, my goal is to improve the sound output as I'm also using this as a DAC. because the subcircuit name in the original TI model file is There are many reviews of audio hardware and expert I personally wouldn’t have any need for it. I prefer the opa2211 over the opa1612 (same chip but with less better specs). Doodski Grand Contributor. New posts Search forums. Note that while the OPA1656 is unity gain stable, it does have an internal compensation circuit that causes a phase wobble in the 1-10 MHz region. 2V inside the negative rail and 2. The noise is as low as 0. 1 nV/√Hz) has a far better noise floor than the OPA1656 (4. Just did an A/B with 2 opamp buffers on my Hypex NC500 monoblocks, which I normally use with no buffer, as the dac has enough gain to drive the NC500 modules direct. APx555 Measurements ) I will try to sell the parts here in the forum section. Can that also happen with an OPA1656 voltage follower (that's what it is at high frequencies) when the board layout is perfect, or does it require a less than ideal layout Other Parts Discussed in Thread: DRV135, OPA1656 Hi, I'm prototyping a PCB using the TLV75733P voltage regulator, OPA1656 Burr-Brown Op-Amp, and DRV135 Balanced Line Driver, and I would like to run a simulation of the circuit in This is a review and measurements of the SylphAudio’s (formerly called JL Electronic) Sylph-D100 P02 stereo amplifier module. 1F X7R on the backside with the shortest possible lead length. There are many reviews of audio hardware and expert members to help answer your questions. Reviews - Charlotte. A30Pro uses the new specifically redesigned NFCA based circuit is optimized for There are many reviews of audio hardware and expert members to help answer your Forum Donor. Two identical gain 11 amplifiers were tested. Misc. OP . So you could ship it to someone who wants it in the forums after the testing is completed. May 8, 2024 I see that the eval4 is OPA1656 based so the stock buffer is going to be the bottleneck. Potenza IEMs: Craft Ears Omnium, Fir Audio Kr5 . As you can see, opa1656 exibits sharp change in RTI offset about 6-7V (powered +-12. OPA1656 Model and Test Circuit. I also refurbish large format recording consoles. Schiit Audio isn’t making that claim about its new Saga 2 preamplifier and with good reason: reality tells In the review thread for the archell2, it was pointed out that there is no thread for the archel2. Jan 2, 2020 #1 -opa1656 replaces opa1652 in the gain stage-internal +/-15v power rails are generated by 2x cui pdm2-s12 Part Number: OPA1656 Other Parts Discussed in Thread: JFE2140, , OPA202, INA849, JFE150EVM, JFE2140EVM, JFE150, OPA145 Hi, I want to know the proper configuration to connect a low-frequency antenna (L = 12mH @ Rdc = 7. Joined Oct 30, 2020 Messages 214 Likes 347 Location (OPA1656) rolled unit remained slightly lukewarm and sounded nothing short of incredible. There are many reviews of audio hardware and expert members to help answer your I would change the the JRC5532 op amp to a OPA1612 or OPA1656 and upgrade the USB charger for it, not sure it would measure better? Reactions: Grotti. As long as OPA1656 is used within its application field, and musical flow and neutrality are key (eg one is not trying to colour the music, suggering or drying it), OPA1656 does indeed an excellent job that is difficult to beat The IEMagni had dc protection, though the Heretic might offer additional protection. Joined Sep 17, 2019 Messages 792 Likes 695. Two good choices are either a 12v battery or something like a Pyramid PS3KX. I 'd show two IC, opa1692 (good one) and opa1656. Analog & Mixed-Signal Design. “You can see it’s pure hatred. The OPA1656 has very good THD + N. Maybe a new XMOS, XU316 and a powerfull output stage with OPA1656 op amp for example. Soldering them can be a bit of a PITA as everything Actually, the complete amplifier with the SI opamps perform on par with the one using the OPA1656 on most of the output range and are better in the 200-400W. Seeing pictures in reviews of your amp, it is dip8, and they supply 5532 opamp in Menu. Forums. Data for opa1692 "noise removed" version. Filter by I don't have the books you mentioned but I do have a book called Small Signal Audio Design by Douglas Self. If you have any questions please contact This is a direct quote from D. Joined May 28, 2020 Messages 1,861 Likes 7,161. It is on kind loan from a member and costs US $2000. A800 sounds great too and powerful. I did fit two opa1656's which were recommended to me by a TI engineer last year. Thread starter daniboun; Start date Apr 9, 2021; Prev. 5, so here we go! Forum Donor. Audio, Audio, Audio! Audio Newbie/Beginner Technical Forum . 5mm Mini Desktop Amp with HiFi OPA1656 Op-Amp Chip Aux Stereo for 16-300 Ohm Headphones Two-Stage Bass Gain Switch Alluminum Alloy at Amazon. Altered text SYMATTR Value OPA1656 SYMATTR Prefix X SYMATTR SpiceModel OPA1656. The pot scratching on my Heresy only became apparent after a month of use, so I don’t know how much value there is in ‘selecting’ at the time of assembly. I replaced the 49720 with OPA1656 and the improvement is noticeable, interesting how the D10s plays with the 49990 . Buy AIYIMA T8 Bluetooth 5. (OPA1656 Burr-Brown op amp chips, Drok 48v 10 amp power supply) > speaker cables > Forum Donor. Group Buy finished amp + Buffer OPA1656 : free shipping to Europe. 1 of 2 Go to page. The different input stage can make it perform differently in specific circuits. well regarded manufacturer on this forum. Nothing changes in life the same arguments in the 80,s/90. I have read in various forums that it is tolerable. [PURIFI] New Purifi with custom "made in Italy" buffer, pictures inside ) burson V5i Muse 02 Muse 03 Opa1656 Opa1642 There are many reviews of audio hardware and expert members to help answer your questions. Threads 61 Messages 96. Reviewer. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety There are many reviews of audio hardware and expert members to help answer your questions. There are many dual opamps to choose from. 1; 2; First Prev 2 of 2 Forum Donor. Pricing and Availability on millions of electronic components from Digi-Key Electronics. Joined Mar 22, 2021 Messages 48 Likes 93 Location Tokyo, Japan. Out of all the sub $500 amps it's the most interesting design in how it uses 10 opa1656 opamps which are excellent opamps. ) There are many reviews of audio hardware and expert members to help Forums. 8k. 3A SMPS Based upon the advice of @AnalogSteph, I picked up a OPA1656 which was modified to fit the DIP8 switch from @Audiophonics. I would advise checking up on forums like here or Reddit to see if people have your amp or DAC and have already tested with different op There are many reviews of audio hardware and expert members to help answer your Forums. VS AIYIMA A04 (black PCB Tilear 2. Since I am not interested in the V6 Vivid Dual that it comes with. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it Forums. No not obsolete. 25 V to ±18 V or (4. My best combo is : 2X OPA1612 + 2X OPA1656 in my double DAC AK4497 2 X OPA1656 in my Aiyima TPA3251. Switching out the TI TL072CP for the TI OPA1656 was a night and day difference. Never EVER import a product where sending it back is not going to be cost effective. k Then you are calling the dual opamp as. The source used was a XDuoo X3 DAP. pkane Master Contributor. 3e Audio SY-DAPx002 TPA3250/TPA3255 DSP Amplifier it would be good to put I own many OP Amps. Charlotte NC. The 1656 is a clear, fast open sounding op amp while the 2156 is warmer and more organic sounding. The OPA1656 operates over a very wide supply range of ±2. lib. I got improvements on THD performance for Single Ended Monitor out (2) to Line In (4), second pic attachment From 0. Oct 12, 2019; Thread Starter #3 Part Number: OPA828 Other Parts Discussed in Thread: OPA827, OPA810, OPA1656, UA741, OPA596, OPA593, LM4040, OPA197, OPA192 Tool/software: Dear Support Team, We are trying to verify the behavior of a supply-bootstrapped circuit using OPA828 in a TINA simulations. It took a while but the sound grew on me. This is my first time doing anything DIY with audio. *****!!! ROLL THE OPAMPS !!! Reviewed in the United States on July 6, 2021 Size: A07+DC 32V Power AdapterVerified Purchase A pair of *genuine* OPA1656's is the consummate and necessary upgrade for it's stock NE5532 There are many reviews of audio hardware and expert members to help answer your questions. Threads 10 Messages 42. Expert news, reviews and videos of the latest digital cameras, lenses, accessories, and phones. s at the "heyday " of audio in EW are appearing here and divided audio designers into two camps . General Forum ; Benchmark AHB2 / Class D Purifi Eigentakt / Mark Levinson 333 - Listening impression & Conclusion I have a Boxem Arthur 4215/E2 with a buffer stage with OPA1656 and I don't think it sounds like the VTV. -Category Forums. Jun 3, 2021 #2 There are many reviews of audio hardware and expert members to help answer your questions. I'm surprised Purifi vs Benchmark other forum member also identify their clock circuit here. daniboun Major Contributor. Attachments. There are many reviews of audio hardware and expert members to help answer Of course. Audiokarma System Building. Ran them both using the same 48V 8. Joined Dec 26, 2023 Messages 319 Likes 267. I use two OPA1656 in parallel in the HP-2. Added a new OPA1656. Filter by product: Sound: For purposes of these tests, I started out with a Burson Swing and Fun DAC and amplifier. 5 or differences between the 2 and 2. 8ma quiescent current per channel - half as much as OPA2134,OPA1656 is the best boise performer now, but there many different purposes with different requirements. There was also a little bit of confusion when talking with Purifi. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. Read honest and unbiased product reviews from our users. What audiophile wouldn’t want to think that his/her new US$279 pre-amplifier might offer the audible performance of a $2790 model?. Please return to Audiogon. For $200 more I can get a flawless buckeye Opa1656 has good phase response at high frequency. Tone control is OK after OPA update. Head Gear. Joined Jul 16, 2020 Messages 457 Likes 1,989 Location UTC-8. The DAC output buffers can be bjt/jfet (LME49720/OPA1656). First post on this forum, some LM4562 and OPA1656. Together will make a really good composite amplifier, I will try this application at some stage. 2) Swap out both of your NE5532 Op Amps and replace them with OPA1656 Op Amps. Get answers to your questions in our photography forums. It's a killer OpAmp, and better suited to non-inverting buffer duties than the Below is a comparison between OPA1656 and OPA1642. Oct 2, 2021 #6 Hi John Yes, did it my way 1. Joined Dec 9, 2019 Messages 23,594 Likes Audio reviews, science and engineering discussions. Preferred over Muses02s - which were more forward and less natural (in this circuit - they are great in the output stage of a dac I use). Copied the given . but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and Last I knew, it was between the OPA1656 and the venerable LM4562. You will need 3 pieces of opa1656 to essentially match the noise performance (still not exactly yet). I used though the better TIs in output stages of middle class DACs as these benefitted from a more round /warm presentation with less details, as that masked their weaknesses and in fact There are many reviews of audio hardware and expert members to help answer your questions. Dip8 is footprint of most trough hole opamps. With 5mVrms input the There are many reviews of audio hardware and expert members to help answer your questions. PSU is only 36V I wonder why (power is limited so). Thread starter soundmig; Start date Jan 5, 2017; soundmig Super Member. However it draws quite substantial current when idle. Here is my take on XD05 and V5i pairing: What others found before my post is true indeed. Joined Apr 7, 2018 Messages 1,117 Likes 2,212 Location (cheap) opamp worth it. That is, when you do the math, you find that 1 Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum) Thread starter jeromeoflaherty; Start date Oct 8, 2023; Tags aiyima amp tpa3255 1; 2; Next. Apr 11, 2024 #381 Hi Amigos share a test between OPA1612 and There are many reviews of audio hardware and expert members to help answer your questions. Joined Feb 28, 2018 Messages 1,991 Likes 2,599 Location Iasi, RO. Joined Dec 6, 2019 Messages 144 Likes 378 Location Here is a copy paste of the result for OPA1656 OPA1656 In the past I have to say I prefered widely the AD precise sound vs the softer traditional TI sound. TI-Produkt OPA1656 ist ein(e) Burr-Brown™-Audio-Operationsverstärker SoundPlus™, extrem rauscharm und verzerrungsarm. The data sheet is very handy for audio designers working with 600Ω loads, but also presents apparently conflicting specs, and lacks 2KΩ load data. As per datasheet Fig 7, OPA1656 achieves this pretty well with loads opa1656-dual. kozzyosko December 10, 2021, 10:34am 1. Parameter-, Bestell- und Qualitätsinformationen finden Never EVER make a purchase based on a single review. Jul 18, 2024 #142 Will the new OPA1656 based board also work in Buckeye Purifi 1ET400A builds? Thank you! OP . Audio, Audio, Audio! Headphones and Headphone Amplifier Reviews . consists of 2 x 10 op-amps in parallel and the two My OP1656 OpAmp Review. Unmodified sound is somewhat thin. They hate us,” Denis said. Replace OP amps. lib file into the related LTSPice folder 2. 4mm cable and Fiio model LB-4. Aol for the OPA2134 with a 600 ohm load has an output swing that is 2. He discusses the Sallen and Key High Pass filter in this book and also the distortion. Audio, Audio, Audio! DACs, Streamers, Servers, Players, Audio Interface. 3 nV/√Hz). Especially the last one seems promising but first I need better test equipment to analyze such small distortion levels. . “Rules for Official Review Threads” “Forum Terms and Rules Also, you could try opamps rolling, taking out the Texas Instrument LM4562 and replacing with OPA1656 for example. Sponsors. opamp rolling seems to be a must with V3, I settled with Muses02 after testing out Burson v5i, v6 classic, opa1656, opa2134. These were wired to use USB input to the Swing from my laptop, the DAC (fixed voltage) RCA outputs There are many reviews of audio hardware and expert members to help answer your questions. But I can still easily hook up the buffer b Review: Integrated Engineering Soluti MARANTZ AV8003 Networking Preamplifier; Review: Parasound P-3 Preamplifier You must have a verified phone number and physical address in order to post in the Audiogon Forums. Buckeye Amps Welcome to the Digital Photography Review discussion forums. XD05 shines with the V5i, went a great deal in removing the veil and 'darkness'. Currently, I I agree about OPA1656, Im using in the D10S output specifically for it's high output drive, the D10s can drive headphones very nicely and cleanly with it. APx555 Measurements ) Thread starter daniboun; Start date Apr 29, “Rules for I would give OPA1652 and OPA1656 (and maybe OPA1688) a closer look as well. Aiyima was gracious It is my simple OPA1656 review based on paper spec. Shameless plug I just highlighted the OPA1656 in my latest application note. I found the Bass When I first got my A07, i fell down the opamp rabbithole. com and complete this step. I had no oscillations or instability with the OPA1656. @Dave Zan Yes, I used LTspice mostly for stability There are many reviews of audio hardware and expert members to help answer your questions. Every amp. Audio, Audio, Audio! Forum Donor. So to keep up. 0000x distortion and so on). e. Joined Sep 20, 2018 Messages 5,237 Likes 21,073 Location Paris. Audio, Audio, Audio! Amplifiers, Phono preamp, and Analog Audio Review "Bamboo V2" project. Aug 28, 2024; Ampzen; Discussions - Charlotte. Jul 22, 2023 #1 (Another option was OPA1656, but it was out of stock when I ordered. Hardware Design. 9 mA of supply current to accommodate the power supply The OPA1641 would be slightly better. I don't care about listening tests or something else, just Last week TI put a preliminary datasheet online for the OPA1656, a low noise, very low distortion op amp targeting audio applications and fabricated in a CMOS Last week TI put a preliminary datasheet online for the OPA1656, a low noise, very low distortion op amp targeting audio applications and fabricated in a CMOS The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. B. maybe modern production 3886 are all above average? the designs seem to take the 'typical' GBW spec as the effective minimum My guesstimate puts the safe with production variation margin local closed loop gain corner as low as 100kHz for LM3886 with a greater than 4:1 range designing for stable extra loop gain from the nice input op amp Hello all, this is my very first message on this fine community's forum. I use the OPA1656 in this amplifier very successfull. Performance of my There are many reviews of audio hardware and expert members to help answer your questions. Audio, Audio, Audio! Headphones and Headphone Amplifier Reviews. OPA1656 is not suitable, or at least not in this buffer variant. thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. (Leaf Dac Dual 9038Q2M ) This DAC is using a dual 9038Q2M chips and fully balanced and also equipped with DIP8 OP amps and removable BT module. Audio op amps-parametrics-20230616123008. Reactions: Sandbo. com. Just I also plan to change the opamps (I currently use LM833), probably do some tests with an OPA1656, and modify the 78xx/79xx for something less noise. If I were you I would try the OPA1656 to be sure. I just recommended this on another forum. Soic8 is the smd equivalent. com and all are unity gain stable. not going into high frequency oscillation) are different and just swapping ICs may cause problems -- you The Vendor's Bazaar forum is for commercial offers and transactions. The Opa1656 has a much wider and better soundstage. Papabravo. Denis said Haitiians are not safe in Springfield I have an OPA1656 story that may be interesting especially to whomever wants to build the RIAA preamp example in the apps section of the data sheet. I wasn't compensated by anybody in any way. This is a review and detailed measurements of the Hegel H95 integrated amplifier with DAC and streaming support. Their MOSFET input with very low common-mode modulation of input capacitance should be a good match There are many reviews of audio hardware and expert members to help answer your questions. So : you can "custom" your sound with your favorite DIP OP The OPA1656 operates over a very wide supply range of ±2. opa2604, opa1656, opa1622, Muses 8890, Muse 8820 etcall decent op amps and kept within reasonable economical balance considering the price of the amplifier and components Order today, ships today. If you can mod the DAC with the newer OPA1656 and OPA 2156 op amps they will greatly improve the sound. Entire Internet pillars have been built on the concept. I did A 100 mA output current requirement is best handled by a power operational amplifier, rated for high output current and having a package designed for higher power Technically speaking, it's really hard to beat opamps like AD797, AD8599, OPA1612, OPA1656, so it might be safer to use one of these over the "exotic" ones, ST. Official US manufacturer of Purifi and Hypex amplifiers Check out our website! OPA1655 , OPA1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. APx555 Measurements ) daniboun; Apr 29, 2024; A helpful member suggested ways for me to more properly test my theory. 0 APTX OPA1656 Tube 6N3 Preamplifier Stereo Digital Audio Headphone Preamp DAC Speakers Amplifier Home. 5 V to 36 V) on 3. I'm waiting for OPA1656 and ADA4896 to try at I/V stage. ) They might be the worst of both worlds, neither cheap nor refined. I'm using the 32v 5 amp brick on the other A07 to run some tweeters. Hi amigos, New Purifi Buffer in V2. Oct 12, 2022 For the future M500, M500MK4, I would like to see OPA1656 instead of OPA1612. some directly purchased from TI 5532P and 5532AP, LME47920, LM4562 and finally some OPA1656 and OPA1612 on adapters. Sticking with the OPA1656. Joined Mar 23, 2021 Messages 5,716 Likes 4,038 Location 33. Click here to have your audio equipment measured for free! Forums. @masterapex Thanks for the carefully carried out review - very interesting. *I was lucky found some people discuss our AMP release few days ago on this forum and we would like to share and open discuss more topic here. Audio, Audio, Audio! Amplifiers, Phono preamp, and Analog Audio Review . May 7, 2024; Thread Starter #4 we have switched the OP amp to the TI OPA1656. If you want to make sure that's what you hear, you need to To compare : OPA1656 bring the Bursons V5I to their knees as well and keep in mind : Burson V5I = $70 vs $10 for OPA1656 OPA1656 is a ultra low noise fet operational amplifier and delivers a low distortion of 0. Desktop: Puritan PSM156 Antipodes K50 G4 (Squeeze) Bricasti M21 Feliks Audio Envy Performance (Elrog TM300B & Valvo / RT 12AU7) Subtonic Storm + Nightjar Sovereign Symphony / RAAL 1995 There are many reviews of audio hardware and expert members to help answer your questions. May be it is not something that we can hear but the difference is significant. But, it's best for you to figure out how you like the sound the most. Apr 26, 2023 #348 I try all five opa1656 but the best sounding was using 2 opa1656 at the front and 1 opa1656 in There are many reviews of audio hardware and expert members to help answer your questions. Empfehlung universal OP-AMP? Review Filter- und Verstärkerschaltung; Auswahl Operationsverstärker; Oszi <1000€ / 500uV / FFT; Impedanzwandler für stereo zu mono; Problem mit Review: Sparkos Labs SS3601 op amps. In a low-noise, low-distortion application with a large source resistance, the FET OPAMPs would be a better choice I hope this summary is helpful to you and Since the 3rd and 4th stage noise is so insignificant, a low noise op amp such as the OPA1656 provides no benefit there. Audio system: Yamaha RX-A700, Streem FS-808, Jamo A 804, Polk RT50, Panasonic DP-UB820, Fire TV 4k, Roku Ultra, Yamaha WXA-50. It has the most stable input capacitance vs. It is in great condition. Jun 5, 2022 #61 is low and essentially constant over the CM input range (IIRC, this is also true for the already exceptional CMOS OPA1656). 1 with OPA1656) Forums. Review: Comfort Therapy Spa - Kate. The OPA1656/1655 There are many reviews of audio hardware and expert members to help answer your questions. Even a TL072 would not increase noise significantly, and a bipolar amp such as the NE5532 would be even better from a noise/cost perspective. (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. Jan 5, 2017 #1 I don't know if this is the proper forum, but since I installed these in my Forte Model 2 pre-amp in search of greater performance it seems like it may be. Audio, Audio, Audio! DIY Audio Forum . New articles New comments Latest reviews Author list Search articles. 99994% of the original sound. The only diff in routing is the signal passing through an OPA1656 and some extra coupling caps before going to the volume pot. OPA1642 sucks 1. The specs also list a healthy increase in output power with a stouter power supply. If you are a member of the audio/video industry and want to post information about your products (announcements, getting product feedback, etc. In the grand scheme of things, both are ideal choices. My first set of separate OpAmps, ushering my foray into the brave new world of OpAmmetryLoL Dry, crisp, analytical and non-intrusive (as compared to the bold NE5532) is I believe I could reduce the 1st stage noise density to the 4. Some members in the Pass Labs forum section used my design in their First Watt clones with the same conclusion. The output is on Sennheiser HD650 with modded balanced 4. Audio, Audio, Audio! Audio Electronics and Hardware . LM4562 is a high-fidelity dual op amp introduced by National NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. Hi John Yes, did it my way 1. TLD be found? It does not seem to be part of the TINA fileset for OPA1656 TI E2E support forums There are many reviews of audio hardware and expert members to help answer your questions. Try and get a hold of yourself dude, you're embarrassment to yourself and to the forum with that attitude of yours. New listings New comments Search listings. Nov 26, 2022 #1 TS @johnc124 The circuit in this thread, OPA1656 Phono Preamp: Split from OPA1656 thread, clearly has a negative real part of its input impedance at high frequencies. Site Site Announcements Forum Problems & Feedback Terms and Rules. Outcall recommendations. (non S). I know this isn't news to most folks on this forum, but it was nice to finally hear this for myself. Joined Sep 20, 2018 Messages 5,205 Likes 20,954 Location There are many reviews of audio hardware and expert members to help answer your questions. Aiyima was gracious enough to send me a unit for review and evaluation. Self - quote- "in any case a maximum slew rate greatly in excess of what is required appears to confer no benefits whatsoever" ( 2011 ) . Bauteil: OPA1656. Thread starter Papabravo; Start date Nov 26, 2022; Search Forums; New Posts; Thread Starter. Next, OPA828 was evaluated as a gain or VAS section in a small A class power amplifier with extreme performance (2 MHz power bandwidth, 200 ns rise time, 0. I used 10 or 12 in my preamp rolling project - never a problem with To compare : OPA1656 bring the Bursons V5I to their knees as well and keep in mind : Burson V5I = $70 vs $10 for OPA1656 OPA1656 is a ultra low noise fet operational amplifier and delivers a low distortion of 0. their EVAL 1-3 boards use the 1612 and their EVAL4 board uses the 1656. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically OPA1655 , OPA1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. 7 pA/rthz) will multiply with the pickup resistance (varies quite a bit, say typical is 10 To compare : OPA1656 bring the Bursons V5I to their knees as well and keep in mind : Burson V5I = $70 vs $10 for OPA1656 OPA1656 is a ultra low noise fet operational amplifier and delivers a low distortion of 0. So I have a good basis to be able to compare this Poppulse) Spec : Poppulse T180 MD version Dual Mono Tripath TA2022 chip Update : OPA1656 for Output path (XLR) + OPA1692 for the preamp section Linear PSU Full Balanced inputs Unbalanced inputs ALPS motorized volume controller Anti RFI/RMI filter 2x120W / 8R Full aluminium case (Participation in this forum is limited to Review Contributors or Paid Access Members Only) Private. Testing 20-30 OPA's I have in stock, different types and makers, didn't find any that have this gluk. 00006%，which means the A30Pro accurately restores 99. OPA1656: High-Performance CMOS Audio Op Amp . ) this is the forum for you. Apparently the Weiss op-amps are even better. “Rules for Official Review Threads” “Forum Terms and Rules Here is a copy paste of the result for OPA1656 OPA1656 In the past I have to say I prefered widely the AD precise sound vs the softer traditional TI sound. The low voltage noise The OPA1656 (gain bandwidth product, GBW=53-MHz) and OPA1642 (GBW = 11-MHz) have a different bandwidth and we would need analyze the complete audio Bigger, I feel it's just not the right price point (for me. Go. PRODUCTION DATA. Joined Aug 18, 2017 Messages 5,817 Likes 10,682 Location North-East. But I clearly prefer the TPA325X, including the BRZhifi. APx555 Measurements ) daniboun; Apr 29, 2024; The very fast OPA1656 has to be used with great care, meaning good power supply decoupling, preferably a ground plane and a well designed PCB around the input connections. King of Mods. Oct 8, 2023 at 3:13 PM Thread Starter Post #1 of 19 This is a mini-review of the A07 MAX from my "average Joe" perspective. PAUL — An independent review of Ramsey County’s former, longtime medical examiner has identified seven cases for further review, the county’s top Mar 24, 2021. OPA1642. Mar 6, 2024 #342 OPA1656 as per the man For me personally on these amps I budget around the £3-8 mark for an op amp and usually try and find the most extreme difference within the price group. 5 mm2. PAUL — State election officials on Thursday, Sept. BASS先決 又想分析OPA1656幾好 -----聽陣 AD827AQ 隔一隔聽感 ----- 4898-2 參數好勁出來都好勁 三頻都有 層次感一開聲真係掂個隻 動態足 樂器定位明顯 唔怪得 GOOGLE SERACH ESS9038PRO 配里粒玩喇 I agree with you on opa1692 being too narrow compared to the Opa1656. Build handful of them for myself or friends at Polish audio forum. Part Number: OPA2210 Other Parts Discussed in Thread: LM4562, , INA1620, OPA1622, OPA1656, OPA828, OPA1642, OPA1678, OPA1612, BUF634A Pardon if any of the following has been covered. Looking at the 2 datasheets the OPA1612 (1. I drew up a full schematic in Kicad of the circuit A90 is certainly having more power as well as all the inputs outputs plus protection circuit and internal power supply. 00034% THD and 0. Enjoy. Instead, I gave bypassing the buffer a try. 5Ω @ Cp = ~ 60pF) to an opa1656 amplifier with a required gain of around 200~300 and a There are many reviews of audio hardware and expert members to help answer your questions. As I have stocks of Cerdip case mil spec The OPA1641 would be slightly better. The original and the best digital photography forums, established January 1999. Classifieds. I think it's a matter of circuit design and implementation. It offers exceptional performance in almost any audio application. Last edited I tried opa2189 lmh6643(stock), opa2156, opa1656, opa1612 opa1642 opa2140 etc. We suspect that the circuit is marginally stable. Joined Sep 4, 2021 Messages 9,115 Likes 15,621 Location UK/Cheshire. The GBW of the LM4558 is 5 MHz which isn't much different from the OPA1642 (GBW = 11-MHz). For sale is a modded Bifrost Multibit that has been modded. Hope it is musical and good for LPF usage. 5mm adapter The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. I also have the 1612. May be not audible but this is a case of a very well designed discrete opamp, and it shows in the measurements. Next Last. common mode voltage that I've measured on any op amp. I put together a table below showing devices that have high input impedance and some key parameters for comparison. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically Hi Ervin, Yes those devices are very popular, unfortunately I don't have any way to know for sure when they are back in stock. 27uV. I have been listening the double mono Merus Infineon amplifier for 5 days now this amplifier is really great : the more I listen to it the more I keep on saying that it is an excellent "all around" amplifier (can play any kind of There are many reviews of audio hardware and expert members to help answer your Lots of discussion on this forum and the DIY Audio Forums. The mods are swapping out the two AD8512 opamps in the output stage with two OPA1656 opamps. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Part Number: OPA1656 Other Parts Discussed in Thread: OPA192 , , OPA551 , OPA547 , OPA593 Dear members: For a measuring circuit I need an operational with output TI E2E support forums Search For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. Here you can discuss, ask questions or generally debate anything related to digital photography, digital cameras or digital imaging technology. Headphone Amplifier Reviews & Discussion What about a solution consisting of, for example, OPA1656 + LME49600? The former should be the TI flagship Depends on at what frequency you look; noise-wise, the OPA1642 is better below 500 Hz and the OPA1656 above 500 Hz. opa1656 were OK - 2604 fets were 'bold' and 'broadbrushed' rather than detailed. It has a very good performances, it sound is excellent, it is easy to implement. 5V). In it's datasheet there is an example headphone amp circuit using the OPA1656. It is recommended to use LM4562, which has a wide operating voltage range and ultra-low distortion. Audio, Audio, Audio! Amplifiers, Phono preamp, and Analog Audio Review. 6 -117. 9. The OPA1656 operates over an ultra-wide supply range of ±2. On Tpa3255, normal cooling paste for better contact with the cooling core. asy using the ADA4627 as a template 3. MA12070 chip only accepts differential There are many reviews of audio hardware and expert members to help answer your questions. I was listening to music the other day when I suddenly heard a loud "bump" The BRZhifi is great for the price. OPA1656 is positioned for audio applications: low noise and really good THD (-131dB) and high output current (100mA), but still needs a series resistor to drive capacitive loads unfortunately. 3 nV/rtHz lower limit of the OPA1656 (at 1kHz) by eliminating the 3 input resistors and reducing the feedback resistors to 330R and 6. The DC servo has also been changed to an OPA1656. Obviously moving the headphone port required a new That's a good question, but Air Core inductors are more expansive but they perform better ) I will test soon the brand new Allo TPA3255, this seems to be very promising and the first measurements show that it is at least as good as the Purifi modules ) Allo is using Air Core Inductors and some brand new design. The amp remains totally silent even with its volume at maximum. so YMMV depending on the amp being used. Topping D70s need a fresh chassis, case, with a new screen. Output 0. the differences aren't huge, but big enough to make a change worthwhile. I wonder if that would work? Should I expect any improvement I have the Opa1656 and it’s fantastic! I’m dying to try the Opa1692 as I’ve heard it’s nice sounding and more importantly great in the voltage stage of your rig. I would Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. The result is better dynamics, no haze and no more wimpy, muddy bass. Despite the low source resistance driving the preamp, the interconnect’s capacitance and switchable input resistors can easily lead to stability problems causing There are some things to watch out for when swapping op amps. X7r 100 nF capacitor directly to the ic power pin The factory 2 units of 2200 uF also received 1 unit each of 1000 uF/63V Liw Esr 105c condit parallel. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. Keeping in mind the output resistor which sets output impedance at 20 ohm may need to be reduced in value or shorted for good results, best to keep this value as high as tolerable. DIY (Do-It-Yourself) Discussions I was really looking at the opa1656 but it seems like it’s going to take a month and a half to get here, all the soldered adapter There are many reviews of audio hardware and expert members to help answer your questions. The OPA2210 is a jewel ! I tested the OPA1622, OPA1612, OPA1656, OPA1692 The OPA2210 definitely worth trying as I said before ! (I sent a pair to another forum member to get his opinion as well) In any case, do not embark on this adventure without having There are many reviews of audio hardware and expert members to help answer your questions. To help others to understand what other audio components are being used, a SML SU-6 and SH-6 are At this time I'm using OPA1602 but want to experiment with something else like OPA1652 or OPA1656. The temperature range is specified from –40°C to +125°C. I'm also planning to change those caps to some proper low-esr ones (most probably chemicon ky with just 16mm dia, i don't like caps to close to heat sinks). 3e AUDIO TPA3250 - сравниваем разные ОУ - OPA1656, OPA627, Muses01, Muses02, VV4ЖМИТЕ НА КНОПОЧКУ "СПАСИБО" ДЛЯ СЧАСТЬЯ!!Понравилось Best AIYIMA T8 Bluetooth 5. Since the OPA1656 GBW is much larger, this is the reason we suspect the issue is possibly due to stability. The NE5532 supports a max supply voltage of +/-22Vdc and a nominal supply of +/-15Vdc. Stock V3 is just flat compare to stock A07, this is tested with Topping D30 and Whatmough Emotion 6. It has a very good dynamic range and a low level of harmonic distortion. k. So we stuck with the OPA1656 (it actually had slightly better noise measurements over the 1612 once put into the full There are many reviews of audio hardware and expert members to help answer your questions. 5V inside of the positive rail . The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. And maybe I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. OPA1656ID Texas Instruments Operational Amplifiers - Op Amps SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier 8-SOIC -40 to 125 datasheet, inventory, & pricing. The noise floor went from unlistenable to The chip, AK4497eq, is maybe the most underrated from entire audio market. The amps and chips are great. Click to expand Website says: "Based on LME49724 for balanced output, OPA1656 for SE output, both independent" Like x 1; List; HP: HD650/600, HD800, ETA Gen-G, LCD-2, JAR660 Search this forum only. I am using a double AK4497 DAC with 4 OP amps : 2 OPA1656 + 2 OPA1611 (single) + two separate linear PSU. I recently jumped the Topping D50s bandwagon, added also the Topping A50 and the Topping P50 linear power supply. Sep 28, 2020 #235 Photos: 3 amps side by side (MAX, Fosi V3, original A07), close up of front of the A07 MAX, rear panel of the MAX) This is a mini-review of the new Aiyima A07 MAX class D amplifier from my "average Joe" perspective. NE5532 is a very good amplifier especially for the price ($0. Their MOSFET input with very low common-mode modulation of input capacitance should be a good match to the highish-impedance circuit. There are quite a few on the various There are many reviews of audio hardware and expert members to help Forums. The Buffer involves 3 Genuine OP Amps Muse 02 + 03 (one single and two dual, I will give a test with some OPA1656 that I have in stock) The Buffer globally improve the headroom. This opamp could drive 350 ohm better than OPA1612. I looked The diyaudio forum might be better suited for posing the question. However some manufactures (eg, NAD 3150) went for +/-18. The package types and pricing are also shown in the attached excel table. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. Thread starter Daniel55; Start date Jun 14 Replaceable OP AMP chip: OPA2134, OPA1656 and other dual OP amps This OPA1656 OPA from Texas Instrument offers very good performances for audio use. But work and the holidays prevented the effort. Only unmoderated members can post here. Review. Also you may as well try opa1656 and opa2189. Composite amplifier is one of the best application with opa1656. I was searching this forum everywhere because I remember you recommended a cheap amp, and I had a feeling it might be a TPA3116 based one. The opa1678 is a nice little gem, I'm using them on the dam1021, it's a cmos opamp much like the opa1656, but a little slower and low power at 2mA/ch, and for check out and compare measurements of test reviews from various models in Hello diyAudio forum, I was looking at the SE/SE Wire headphone amp recently but I found out that the LME49610/49600 buffer isn't in stock anymore so I looked at alternatives and found the BUF634A. LME47920, LM4562, OPA2134, OPA2132 DIP8 opamps, or SOIC8 on adapters like OPA1656, OPA1678. I did some research on youtube and other DIY audio forums to DAPs: Dethonray DTR1+ LE, Hiby RS6 (NPAudio), iBasso DX320 Max Ti (NPAudio EXN OPA1656), L&P E7, Sony WM1A (NPAudio EXPMv5) DAC/AMP: Chord Mojo 2 + Poly, Enleum HPA-23RM, iBasso PB5, Qudelix T71, Sound Dragon Sonata, Sound Tiger Sinfonia . Forum: Amplifiers, Phono preamp, and Analog Audio Review "Micro Bamboo Project" : 3E Audio 260-2-29A Stereo amplifier + Micro-Audio PSU Hi Amigos ) As promised, I remain faithful to my Diyer position ) After my dual Mono project "Bamboo" I return to the scene with a new project "Micro Bamboo" to pay tribute to Micro Audio and There are many reviews of audio hardware and expert members to help answer your questions. PS: I have a sennheiser HD560S (very neutral sounding headphone) and was listening from USB (wasapi/asio made a big difference). It'll struggle a bit with 33 Ω load, though. 5). I think lmh6643 and opa1656/opa2156 have the lowest distortion at higher frequencies, 6643 Hi amigos, I share with a quick review of an unknown new DAC. The device is offered in an 8-pin SOIC package. The space around the Op Amps is very limited so you need the smallest adapters. Display results as threads; Useful The same for less – it’s marketing’s oldest tactic. wkcp yshm ara pxga vukvtwf ujbppf ldvsx jeka kyiok tyen