Opa1656 vs sparkos forum. 000. The Sparkos uses a two pole compensation network referenced to ground. Having compared the Gemini to a range of solid-state amplifiers, I want to dedicate some paragraphs to a comparison with the Woo Audio WA2 tube amplifier. Dec 28, 2018 · I would like to see the OPA1656, a burr brown sound plus chip. I did an A/B comparison to LME47920 (metal cans), burson V5i, V6 and also the Sparkos Pro discrete op-amps on one of my DAC's. Low output current would mean the transimpedance gain of the I/V circuit will be high, and the input current noise of the op amp will be a significant contributor. I haven't had the opportunity to test v7 Jun 30, 2016 · In short I have been very happy with the OPA1611 but the Sparkos ss3601 does have the edge in more refined highs, sense of space and a more pitch black background and makes it easier to hear deeper into the recordings. Jan 10, 2021 · The pop noise is only went is power on but sparkos ss3602, Muses02, opa1656 sounds better . But both the sonic imagery and sparkos are pretty darned expensive I agree. Here are the measurements of the dual mono and with different op amps (Sonic Imagery 994, OPA1656, LM4562). May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. OPA1622 was targeted specifically for headphone applications, while OPA1656 is a more general purpose device meant to address analog signal processing in line level audio circuits. Aol Feb 13, 2016 · Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. Any chance you have some measurements of the OPA1612 compared to the Sparkos SS2590 for the regular dual mono? I was also curious how many of the SS2590 opamps are Dec 25, 2019 · What do you think, if I buy Sparkos ss78 (15v) and ss79 (-15v) separately and just install them? There is a photo buffer on the nord website (without opamp). AKM4499/AKM4191 Chipset; TI DIX9211 SPDIF DIR Chip; Twin TI1656/SparkOS 3602/2590 OPAMPS for Balanced (XLR) Outputs Jan 30, 2024 · For best performance you might chose the OPA1656 while with V7 you should get a slight increase in details and scene. The pricing for these options range from $0 for the OPA1656 to $79 per opamp for the Sparkos. Frankly, this product has some points in favor but some against it. 6m Starlight 8 usb 3. From the manufacturer's post with THD+N vs. 1 and Orpheus Minotaur speakers Jul 4, 2009 · I have tried every version of the OPA627, including the metal can version, the AD797, AD827SQ, AD847SQ, OPA828, Sparkos SS3602, Burson V6 Vivid, OPA1611, OPA2156, and many many others. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. 1F X7R on the backside with the shortest possible lead length. That unit came with the Sonic Imagery's 990ENH discrete operational amplifier ("opamp") in the buffer stage (pre-amplifier). Something like that. If you like, you can use two opamps in the package with some extra r c components to make a super opamp which will give unmeasurable distortion. Mar 17, 2019 · The OPA1641 would be slightly better. Dual customzied solution will give unmeasurable distortion (possibly -180db). This gave me a chance to The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Feb 4, 2024 · Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. opa1612 opa1656($3) have thd performance better than -140db. Feb 10, 2024 · Thanks Amir, I was just wondering why the review was taking so long. 1 C to C cable > Anker 575 USB C Docking Station < Wireworld . May 23, 2018 · Problem is, i don't buy into the discrete opamps anymore. Mar 21, 2023 · The trade off would be noise vs stability. It could sound pretty good, but one could get sound just as good from IC opamp designs. OPA1656 1/2 OPA1656 Input Output Pad Product Folder Order Now Technical Documents Tools & Software Support & Community 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. Audiophonics uses TI-LM4562 by default, 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). (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. Since I am not interested in the V6 Vivid Dual that it comes with. Best Regards, Chris Featherstone Jun 20, 2023 · opamp rolling seems to be a must with V3, I settled with Muses02 after testing out Burson v5i, v6 classic, opa1656, opa2134. With that being said, there will not be a huge noise performance difference between OPA1656 (~4nV/rthz) vs OPA1678 (~5nV/rthz) when the thermal noise is already 11. In the meantime we will wait for the customers feedback on the component values in order to check the stability of each op amp below using the OPA1656. The xlr input and the trigger are two great additional features, as is the nice and efficient enclosure, however the mono is not true mono, and the 13 db of sinad lost is a bit disappointing, especially given a boost certainly not exceptional in power. On the α24, this is a non-issue. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. OPA1656 Mar 17, 2019 · The OPA1641 would be slightly better. The low voltage noise combined with the low current noise make this device great for low and high impedance applications such as a high gain microphone pre-amplifier. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Right now they have either 20, or 30% off going on for their products. Apr 1, 2024 · I think it is fun for people to try, but much cheaper alternatives exist. Jan 5, 2017 · So, seeing the Sparkos Labs "discrete op-amps" I figured I would try them. It could be very interesting to test their performance: - SNR - Bandwish - slew rate-. It might be worth giving the 1656's a go. I would check the amp out, if its character is basically to your liking (incl. It will also support the Sparkos 2590’s stacked pair which requires a PRO TO DUAL DIP8 ADAPTER. But I would still like to see the OPA1656 tested. Four OPA1656's for 20 dollars or euros might be worth a pop to hear or not hear a difference. Currently, my setup consists of a ZA3 (Stereo) paired with the Burson V7 Classic. This is easily my favorite recommendation over bursons (v5i or v6). Mar 17, 2019 · OPA1656 rolling I tried in all cases to bypass the rails with a 0. Replacing op-amps however labour intensive it may or maynot be dependent on method vs the cost for discrete op-amps, 4 discrete op-amps since Sparkos makes single channel op-amps for their top of the line. The Layout is attached. I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. 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 OPA1652 and OPA1688) hunting for sources of input capacitance variation. 4 nV/rthz. power, the discrete op amp has much lower distortion before clipping while it is on par with the OPA1656 at lower power. 0 A to B cable > Aune X8 Sep 7, 2023 · Amir wrote in post #1 that the amp came with the default op amps - so that would be the OPA1656? If so, his measurements are not with a discrete op amp. It has the most stable input capacitance vs. Aug 21, 2018 · This is where I see the cost/benefit ratio getting thrown out the door. You can feel the position of each instrument and musicians in front and behind the line of the speakers and this makes the listen experience more emotional Mar 22, 2022 · These are probably among the two highest of the best sounding dual opamps around today. The OPA1220 would be quieter than either of them for MC, still not quiet though, and would definitely be better than the LM4562 for MM. It took me about a year to "get around" to actually getting the part numbers off of the existing op-amps (LT1028) and asking Sparkos which of their discrete op-amps would be the proper substitute for the op-amps in the Forte Mod 2. The owner then ordered a set of Sparkos Pro SS2590 discrete opamps. PRODUCTION DATA. The WA2 costs 1499 USD and my unit has upgraded tubes that makes the total cost more than twice the cost of a Gemini. In comes the sparkos. Stock V3 is just flat compare to stock A07, this is tested with Topping D30 and Whatmough Emotion 6. The FET-input architecture achieves a low 2. It seems that it looks easy. Several reference are used on forum. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Dec 10, 2021 · This is my first time doing anything DIY with audio. Nov 8, 2022 · The OPA1656 noise for MM would likely be a bit better. Already, I found the new AKM DAC and SS3602 to deliver much improved dynamics and greater soundstage depth than the previous configuration, both of which being immediately noticeable. Joined Aug Mar 17, 2019 · blue spectrum - 2 x 8 parallel OPA1642 , green spectrum - 2 x 2 parallel OPA1642 orange spectrum - 2 x 8 parallel OPA1656 , brown spectrum - 2 x 2 parallel OPA1656 Based on these measurements I expect the noise of a single OPA1656 to be 39nV/rtHz at 10Hz. Every amp. I don't care about listening tests or something else, just want to use the technical better one in my amp. common mode voltage that I've measured on any op amp. I did build that and the slightly modified schemo is attached. [Update] I discovered that the sound of the Sparkos ss3601 further improved after 30+ hours of burn-in. It offers exceptional performance in almost any audio application. Mar 17, 2019 · I purchased 10 OPA1656's. This gave me a chance to Apr 21, 2019 · Sound: For purposes of these tests, I started out with a Burson Swing and Fun DAC and amplifier. Just a This is a forum where guitarists, from novice to experienced, can explore the world of guitar through a variety of media and discussion. I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. D. Nov 10, 2013 · The Sparkos are quite a bit taller (and wider) than the stock JRC 4580D opamps so I used some longer 10mm bolts and 8x5mm lock nuts to keep the card's shield a few millimeters clear of them (though the shield isn't required for the card to work). I am planning to replace the NE5532 in my Burson Funk with the OPA1656. 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. It is noted that repeatedly referencing the testing done by ASR on a different Sparkos op-amp makes no sense in this context as neither Sparkos or Fosi recommend that op-amp. Are there any other Jul 5, 2006 · Only Sparkos I have heard were integrated into Allo Katana DAC to form the output stage. Dec 20, 2023 · I wanted to share my experience with the Burson V7 Classic op-amps, as I feel you might be interested based on your post. Joined Jan 10, 2021 Forum Donor. IIUC the folks at Sparkos designed the board for Allo or they collaborated on it. I used 10 or 12 in my preamp rolling project - never a problem with Jan 27, 2024 · The advantage of OPA1656 is that it has JFET inputs rather than bipolar, so its input bias current is much lower, making it easier to keep the output DC offset low in some applications. 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, Aug 20, 2023 · My personal OP amp preference for the Fosi V3 are Ti OPA1656 but others have different preferences. Two identical gain 11 amplifiers were tested. Below, I have highlighted the components that could be adjusted if this the issue. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and improve sound quality. Sep 14, 2021 · 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. Dec 11, 2019 · These two opamps have different but effective ways to enhance HF distortion reduction compared to traditional chip opamps. 6m Starlight 8 USB 2. Nov 28, 2022 · 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 This will allow you to swap out the opamps with the Sparkos 3602, or any of your favorite chips. I had fun just to establish for myself. The name on the board is exactly the same. Strikes on piano was so much more detailed and one could hear the wood timbre and the strings move. The low offset would make the reduction in swing before clipping at the output of the second stage due to the DC gain of about 1000 for MC essentially Mar 17, 2019 · For a DAC chip with a low output current, I would suggest op amps with FET type inputs, either JFETs or CMOS. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The SIL uses small inductors on IP transistors. 5, Orpheus Aurora 2. I use one amp and I don't have any imbalance and it provides more power than what I need. I suggest the following reference - 994Enh Discret OpAmp SONIC IMAGERY LABS - SPARKOS LABS SS3606 - AOP 1612 - LM4562 Nov 30, 2021 · Stability should be considered especially with the wider bandwidth of the OPA1656. It's best use as an alternative to opa1612 when noise is not a big concern. Active Member. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. Geshelli offer three options: TI OPA1656, TI OPA1612, or Sparkos Labs 3602. The output swing for Aol should be considered as it is different between the two devices. Aug 3, 2019 · I don’t regret doing it with Sparkos, but I am not qualified either objectively or subjectively to offer any opinion after going deeper into this. I had no oscillations or instability with the OPA1656. 3. Feb 8, 2023 · My chain is an Alienware X15 R1 Windows 11 laptop with ASIO drivers and Equalizer APO replacing the windows audio stack( apps and processes that control audio in windows) NO Adjustments - Amazon Music< Wireworld . Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. I've had the Burson V5i, and the V6vivid and I have no space to put a sparkos labs opamp single or dual channel. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. Thanks in Feb 11, 2021 · Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. So yes, results are excellent. To begin, I'm a big fan of Sparkos SS3602. Aug 18, 2016 · “The Sparkos opamp again had more of it all Deeper bass more crispiness in contrabass. The WA2 is a modern classic. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. Apr 22, 2024 · WOO WA2 vs. Opa1656 has good phase response at high frequency. In my amplifier, they look the same, only with opa 1612 and without voltage regulators. the default NE5532 OP amps supplied) and have - alternatively - a look at some of the rather "cheap" integrated OP amp alternatives, which fit the V3 sockets from Mar 25, 2017 · What did the Sparkos do? I had to put the amp on high gain, keep the bass on low (to prevent a Protect being triggered). . Ideally would be to try out the V7 and see if there're any improvements in the output sound. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. The Sparkos are somewhere in the middle. SQ was about the same as other ESS-based dacs in that class. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. It made an otherwise ordinary dacamp to a fantastic dacamp. If you have guitar related questions, start with the "search" field at the top of the page. These were wired to use USB input to the Swing from my laptop, the DAC (fixed voltage) RCA outputs of the Swing to the RCA inputs on the Fun, and the Hifiman He560, Sennheiser 800, and Campfire Cascade (with Cloth pads) used for all listening sessions. SparkOS is an AOSP based rom with customizations, mainly focused on stability and most of all smoothness. Feb 17, 2020 · In principle all variants should sound transparent, but you have the option to change the Audiophonics OP amp if you want. I still have my discrete Burson, and Sparkos but not the pro grade, I can't fit into any of the equipment I own, but I put the Burson vivid5i, 6Vivid in a drawer where they've been for some time. doug s. Jul 4, 2009 · - highs (over 10-12khz or so) not as "sparkling" as with opa1656 (but at the same time more sibilant, not overly sibilant but with the opa1656 sibilant nearly "vanishes" while the opa627 brings them a bit up again, it doesnt "shoot" sibilance in your face, its just a bit more audible) Apr 12, 2022 · The socketed version is designed to let you change out the opamps used for the balanced and unbalanced outputs. I used the attached blank proto board. In my experience the OPA828, SS3602 and MUSES03 are easily the best I've heard, regardless of whether they're used in the Essence III dac, or in the Purifi May 19, 2017 · 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 really doesn't give much 20 kHz added safe composite loop Mar 17, 2019 · To start, OPA1656 is definitely not a replacement for OPA1622, the two parts were designed for with very different applications in mind. Impact from drums were more realistic and detailed. Sparkos Labs Gemini . The LM6172 made the soundstage spacious with good sparkle on the treble. CMRR is not a big issue. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. Jan 7, 2021 · I have had great success with them in various pieces of equipment and have become my go-to op-amp. 3V inside of each supply. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Apr 27, 2024 · The Fosi Audio ZA3 is no different and it offers the ability to swap out the five op-amps with compatible DIP8 dual op-amps like the Sparkos SS3602, MUSES02 and OPA2134PA which are available for purchase on the website as well. This is made available through its recently acquired distributor and reseller status for SparkoS products. This is just a theory. That i couldn't spot with the TL´s or for that matter any other opamps so far. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Dec 9, 2019 · Home: RME ADI-2 Pro FS R BE—Neumann KH80 DSP, Arendal Sound 1723 1S Work from Home: JDS Labs Atom—Etymotic ER4SR, AKG K371, Sennheiser HD820 Measurement: Earthworks M30 (Reed R8090)—Earthworks ZDT 1021 — RME ADI-2 Pro FS R BE — REW The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Of the three May 7, 2018 · The OPA1656, OPA1612 (the ones I'm currently using) or a low noise NE5532AP (if you really like the sound from the stock opamps). Jun 2, 2019 · Of course. Feb 1, 2024 · The sound is warm and full with nice low frequencies, for sure due to the neutral frequency response I saw on graphs available on some forums, and the soundstage is large and detailed. Nov 28, 2023 · Having enjoyed my recently upgraded J2S (AKM 4493/TI -> AKM 4499EX/Sparkos SS3602), I wondered about what the Sparkos SS2590 might bring to the picture. Composite amplifier is one of the best application with opa1656. vmqzkriixaqpjnynkpiqtkmifmzxdisicyjtyhhmodxbbbymi