- Opa1656 vs opa2134 sound quality. Details are better on the SS360x while Bass may have had slightly better slam on the Classics. Mar 17, 2019 · Again, it's the circuit topology that is the most important to get the best sound out of any op-amp. Find parameters, ordering and quality information Nov 8, 2006 · In Active crossover application, OPA2134 and OPA2604 Jan 7, 2021 · So considering NE5532, LM4562 and OPA2134, OPA2134 gives best measured results in AIYIMA A07. This device features excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2 kΩ The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The high capacitive load drive and high current drive also make this device a great option as a headphone driver. And I would like to know what people think of the OPA1678 sound signature in DAC filter applications. May 19, 2017 · Something better than the LM4562? May 25, 2021 · The class D amp will make lots of HF noise, so the quality of the opamps' power supply is unknown until it is actually probed. So I don't think there is a singular correct • Professional audio mixer/control surface • Guitar amplifier and other music instrument amplifier • A/V receiver • Bookshelf stereo system • Professional audio amplifier • DJ equipment • Turntable • Special function module 3 Description The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio Mar 17, 2019 · Hi, Would like to thanx Johnc124 for all the good advices , and all members to this thread. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. 75V peak corresponds to) at 20kHz. OPA1656 had respectable slew rate without slew boosting so I opted to forego that circuitry in the audio part. Those are fine. I did check OPA1656 in voltage regulators and didn’t like elevated LF noise (compared to JFET opamps). I don't care about listening tests or something else, just want to use the technical better one in my amp. Opa1656 has good phase response at high frequency. (But I always thought the 2132 sounded muddy. The V6 classic was a bit slower on the attack than the SS360x which gave it a bit smoothed over sound compared to the SS360x. I tried the OPA27, which is a low-noise, high-input-current BJT design, and last night I tried the NE5534A, a classic general purpose audio opamp with bipolar inputs. 1 nV/√Hz at 1 kHz • Ultralow Distortion: 0. So you can check the amount of noise (audio frequency, but also HF) on the supplies. Now, we run through a hand calculation to find the total noise of a simplified audio system. Swapping out the 5534 or 5532 without looking a little deeper isn't wise. Are there any other Oct 11, 2001 · I used to have a comparison written up between the 2132 and 2604, but I don't know where it is anymore. I tried using one 2134 and one 4562 and it oscillated. I got a TI NE5532 off ebay. Mar 17, 2019 · FWIW, I’m biased towards sound quality, very low input bias current, low input voltage noise, and very low offset voltage a la the 1656. ) Feb 11, 2021 · The OPA2134 opamp The OPA2134 is a Burr-Brown product, the dual version of the OPA134. Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. He is interested in how such an operational, with 150db open loop amplification, has a small ringing at an amplification of (-) 1. The OPA2134 is not harsh. LM4562 is another level altogether. There is no practical audio program material which will have 24dBu (which is what 17. File Size: 3MbKbytes. If anything, it has a more 'neutral' sound than the (possibly slightly euphonic) OPA2134, but its performance is very reliable and dependable and of a very high standard, which possibly explains its long standing use in 'professional' audio gear. 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. OPA1656 Nov 25, 2015 · LM4562 vs OPA2134 vs [ ? ] Mar 17, 2019 · The good news is that in audio, impedance levels are relatively low so parasitics need to be larger to have a bad effect, and most audio opamps are not really high speed. Regrettably, but not surprisingly, no evidence is given to back up this assertion. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. Paid access: http://www. 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. 000035% (–129 dB) at 20 kHz, and improves audio signal fidelity across the full audio bandwidth. org/e-lib/browse. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. (NOTE: We once owned a recording studio together back in the late 1970's through the early 1980's. Feb 11, 2021 · The OPA2134 and LM4562NA measured almost identically but both above NE5532. 5 volt supply, 100 nF and other bypass Dec 2, 2010 · The sound of both OP amps are similiar but the LM 4562s show their superiority with very high quality source material. I no nothing about this. Dec 31, 2021 · Depends on at what frequency you look; noise-wise, the OPA1642 is better below 500 Hz and the OPA1656 above 500 Hz. File Size: 611Kbytes. The main reason I can't perform the test is because the current setups of mine are all soic8 package. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. Aug 22, 2007 · I had a Rotel RA-930AX at hand which I had recently upgraded, reduced the opamp supplies to +/-16. Every amp. It was less "real", less "live" and less "musical" to my ears. Sep 14, 2021 · Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. I'm not sure what's better on paper but I think certain combinations of DACs and opamps can work better than others. Below is a comparison between OPA1656 and OPA1642. LM4562 worked great and DC offset was 3 mV OPA2134 oscillated. But it seems that's not the case. May 6, 2022 · Opamp better than OPA2604 with big soundstage, and • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. I recently got a Matrix Audio M-STAGE HPA 2C classic with an OPA2134 and it was a little harsh on top. 5 Euro OP275 ~ 3 Euro OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. However, this compression does not necessarily mean a compromise in audio quality. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. ) He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. It performs admirably in virtually all audio applications. The OPA2156 has amazingly good distortion as well, you just might want to load the output a little less than a 1656. Page: 23 Pages. This device is ideal for low and high impedance applications, such as a high gain microphone pre-amplifier, due to the low voltage and current noise. Sep 30, 2010 · G'day mate, yes it's a strange one, as the original OPA2134's in use sounded rather 'dry sounding' to me, if that makes any sense! In fact when the originals were first installed I remember thinking that they didn't sound as good at the LM833's in there previously! But these OPA2134's sound nothing like the original ones. 9nV/√Hz voltage noise density and 6fA/√Hz current noise density. Sep 14, 2021 · Preamplifier Input Parallel Resistor (22k) Shootout: 1. To me, the 4562 should be the touchiest, with its 50 mHz GBP. Mar 17, 2019 · The OPA1641 would be slightly better. Total Noise of OPA1656 vs OPA1612. It is a bit of a science project, but I am seeing nice audio performance and I am using John's opa1656 as the primary output buffer. 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. cfm?elib Nov 30, 2021 · Both devices are very popular and great for audio. It's a killer OpAmp, and better suited to 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 Feb 11, 2018 · I used the LME49860 in a FX-Audio DAC-X6 and it was very good. You can't simply pick a an op amp and call it the best without defining where or in what circumstances it performs better in. [] The performance of the CMOS audio op amps is actually fairly close and maybe slightly better than the OPA627, which was somewhat famous for its performance in this use case. I routinely use OPA1656 and related on adapters without any issues. 00005% at 1 kHz • High Slew Rate: 20 V/μs • Unity Gain Stable • No Phase Reversal Mar 11, 2003 · 1. who builds large PA speaker systems. At least, OPA828 has proper JFETs at input. The manufacturer claims it has superior sound quality, due to its JFET input stage. - Page 2 Apr 21, 2019 · vs Burson V6 Classic. -131 dB THD+N at 1kHz, 600 ohm load, 3. It made a difference in sound and I'm not gonna deny that. It's supposed to be a stright up replacement but it's about a third of the size. OPA2134 measured the best. 5Vrms signal, 80-kHz measurement bandwidth. Mar 31, 2008 · OPA2134: When I replaced the OPA627 with the OPA2134 I found the music to be a bit uncomfortable to listen to. Thanks in Sep 21, 2015 · A (2x 9V with real ground) battery powered audio amplifier using the OPA1688 and the new QA401 audio analyzer. CMRR is not a big issue. Both (I believe have Fet-inputs) There’s also 2189 CMOS audio op amp has impressive specs of an impressive was designed for MUX friendly DACs and multichannel dacs! We add the following graph below to our audio device data sheets to show at what impedance the noise will be dominated by input current noise*source resistance vs. I'll try to dig it up sometime soon. Basically, my recollection is that the 2604 kept the characteristic Burr Brown sound, but the soundstage seemed wider and the clarity was higher than the 2132. 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. Details were lost. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. The sound came out "thick" and I could feel the artificially enlarged sound stage. Classics are a bit warmer while SS360x is a bit brighter presentation. The question is rather moot anyway. com and all are unity gain stable. Today, I still have the same 2020 amplifier and the opa1656 sound much, much better at a fraction of the cost. Craig Jun 18, 2019 · Hello everyone, I have the DAC Emotiva XDA-1 preamp with the DAC Analog Devices AD1955 and Burr Brown OPA-2134 op-amps, I want to update to the Burson Audio Play with the DAC: ESS Technology SABRE32 / ESS9018 and NE5532 X 3, NE554 X 2 op-amps, would it be a good update to the Burson Audio? thank you very much to all. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. 3. In my case compared to OPA1656, OPA1612, Muses 8820 and some other cheaper op-amps - V6 added more quality in every aspect: Bass became more pronounced, Vocals became more detailed and more May 15, 2022 · Buggle2 Riaa board. com with a TI insider involved. I threw an NE5532 and it helped smoothen it out quite a bit. Also, a LME49720HA that costs 5 times as much as the PDIP or SMD version should also be interesting in terms of cost calculation. 4Vdc and then sequentially put in the dual audio opamps which I happened to have in my inventory into its preamp stage socket: Total amp DC offset and THD LME49720 (TO-99, Green trace) -1. Mar 17, 2019 · As compared with the OPA1656 which is 24V/us. They'll say the OPA2134 "sounds dark" for example. Two identical gain 11 amplifiers were tested. Could it be possible to replace the LF351N and LF353N with the OPA134 and OPA2134? I really wish I could get more info on this. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, low-noise 36-V JFET precision operational Apr 11, 2024 · Both op-amps deliver exceptional audio quality, with the selection between the two depending on the specific requirements of the audio circuit and the desired balance between performance and cost. 1 nV/√ Hz at 1 kHz; Ultralow Distortion: 0. Of course that is because in LTspice all instances of the device are identical. Hi there probaly a simple question maybe not. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. 53 MHz gain bandwidth product, 24V/us slew rate. 000. At 320 kbps, the audio file is compressed at a high rate, resulting in a smaller file size compared to uncompressed audio. Sep 18, 2021 · The OPA1656 is a high-voltage CMOS with the lowest voltage noise in the industry. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. This device also features excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2 Mar 8, 2021 · Toppingは、デスクトップDACやAMPなどの高品質のデスクトップグレードのオーディオ機器で長い間、オーディオファンの間でよく知られているブランドです。このブランドのDACの「D」シリーズとAMPの「A」シリーズは、D90 / A90、D50s / A50sなどの業界で最高のオーディオチェーン構成の一部として Aug 28, 2023 · LM4562 vs NE5532: What are Differences and How to . Goggle bill d mod carver c-1. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. 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. OPA1656 is a bit noisy at low frequencies. I have a circuit with two OPA1656's and it so happens that one offset is subtracted from another and almost cancels - in LTspice. Don't get me wrong. I wonder how the sound of CMOS would compare to the JFET? 4 days ago · G'day all, an interesting thread. May 13, 2015 · NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. Mar 17, 2019 · I am excited to see if anyone wants to try to use it for audio I am working on an audio reference design using the DAC11001A that I hope to release on the web in the next few months. com/products/op-amp-chip-muses02-opa2604ap-opa2 Mar 17, 2019 · As the open loop output impedance shows, OPA1656 appears to have an output stage similar to OPA1611 (2) which is involved with partial driving current. 8 mV 0. Aug 26, 2020 · MA12070 vs TPA3255 (Scientific Measurements Aside) Part #: OPA1656. For this example, we are using the OPA1656 in a non-inverting configuration with a gain of 40 dB or 100V/V. OPA1656 also has a pole-zero pair in the open loop gain curve to boost the open loop gain at audio frequencies (hence the 53 MHz gain bandwidth product). High resolution was lost. I would not classify the OPA1656 as a high speed amp in this context. 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 · I listened to OPA2134, LM4562, and NE5532, and OPA2134 sounded the best. May 19, 2017 · Compare using a fet opamp, opa1656 vs a opa2134, I see little reason why one would choose a opa2134 for a new design, maybe that's why TI asks so much because they want you to use the new tech, but it's probably the cost of the mfg process for that tech vs the new processes. Jun 8, 2023 · I read that many like OPA1656/1655 very much. The recent swap I did was from opa1656 to opa1612 in the v3. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. 9nV/rtHz broadband voltage noise. The Jul 4, 2009 · The Opamp thread | Page 470 | Headphone Reviews Part #: OPA1656. And it is a JFET opamp, which is always preferred by myself in the positions where slightly higher voltage noise of the opamp is negligible, like here. But once it comes, I'm excited to try to listen to that. 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. Feb 11, 2021 · Yes. May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. On lower quality pressings it is a level playing field and the OPA2134 is almost identical to the LM4562. 6 fa/rtHz broadband current noise. The OPA1656 is a newer device with better typical room temperature specifications in regards to the following: 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. Superior Sound Quality; True JFET Input Operational Amplifier With Low Input Bias Current; Low Noise: 5. NE5532 worked great but DC offset was 45 mV. But deep bass and transients seem more punchy in the OPA2134. Yageo FCR CF: Articulated and lively bass - maybe a tad too much and not the tightest, highs Mar 17, 2019 · About OPA1656 DC output offset: depending on gain, a low level circuit with the OPA1656 can show a few mV as output offset. Now all the folks are using opa2134 op -amps as the replacement. THD+Noise vs Frequency 3 Description The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. My best guess is the RC4558P. The input is essentially shorted with 10mohm resistor in order to have a -140db control signal. Though I use it only occasionally mostly for tests, and it has not operated more than a couple of hours summed, the right channel started to emit high frequency hiss noise time after time, without any special reason, even if nothing is connected to the input. I can't comment necessarily on the sound comparison. Years ago the MUSES 01 was $35 in Japan and it was at the time way ahead of it's time. TE CFS CF: Good soundstage, neutral mids, punchy basslines, overall detailed & open, superb vocal rendering, smooth highs, totally glare free. ••• Feb 23, 2021 · I tested three op amps in the circuit: NE5532, LM4562, and OPA2134. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. It has the most stable input capacitance vs. Is link a schematic, but the only one I can find isnt the best quality and needs to be zoomed in on. I've long been in agreement with Douglas Self on the NE5532/NE5534 : anyone who reports these op amps sound bad is either not using them correctly, or is just being a snob. Mar 17, 2019 · Also, I typically preferred simplicity in the op amps I developed. Page: 42 Pages. 2. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Except opa1656 rest of opamps are available on rsdelivers. OPA164x SoundPlus™ High-Performance, JFET-Input Audio Operational Amplifiers 1 1 Features 1• Superior Sound Quality • True JFET Input Operational Amplifier With Low Input Bias Current • Low Noise: 5. Perhaps OPA1678 will also not be the bottle neck and perhaps will measure similarly to OPA2134 or LM4562NA. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. Dec 6, 2018 · You can dig on the Internet and find modern op-amp test results, but it quickly crosses over into sonic character and subjective opinion. aes. There have been audio op-amp distortion measurements and comparisons with double-blind listening tests. 3 mV 0. This particular analyzer already produces quite a bit of 2nd, 3rd adn 4th harmonics itself that have to be subtracted out of the results. thermal noise (below for 1656): This shows that no matter the source resistance in the OPA1656, the noise will be dominated by the thermal noise of the source resistance above ~400 Ohms. That could be an explanation, considering OPA1656 has much better supply rejection than 5532. 0026% LM4562 (DIP, Blue trace) -1,2/+2. Part Number: OPA2134 Other Parts Discussed in Thread: OPA1678, OPA1611, OPA1602, OPA1642. 4 Calculating Voltage Noise at the Output. Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. The OPA165x Op Amps offer a FET-input architecture that achieves a low 2. Dec 10, 2021 · This is my first time doing anything DIY with audio. 00005% at 1 kHz Jul 4, 2009 · The Opamp thread | Page 482 | Headphone Reviews and Feb 2, 2024 · Part Number: OPA2134 I obtained some OPA2134PA DIP op-amps from a friend to test. 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. . The high bandwidth and high open-loop-gain design of the OPA1656 delivers a low distortion of 0. Features of OPA2134 vs NE5532 . In fact, 320 kbps is considered to be the standard for high-quality audio. Apr 30, 2021 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. It appears that the Feb 1, 2006 · Greetings everyone, I just wanted to direct this question to the folks that post here who are audio electronics experts like Jim Williams as well as to the designers of new audio products like Tim from Buzz audio, Geoff Tanner and others who are gifted with electronics skills and great ears. Sep 25, 2019 · Texas Instruments OPA165x Ultra-Low-Noise Audio Operational Amplifiers are designed specifically for audio and industrial applications where maintaining signal fidelity is crucial. AD826 used instead of the the OPA2134. It's best use as an alternative to opa1612 when noise is not a big concern. OPA134 data sheet, product information and support Dec 12, 2023 · A higher bitrate generally indicates better audio quality. Figure 3-4. 00008% • Low noise: 8 nV/√Hz Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. The FET-input architecture achieves a low 2. >100mA output current. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. For several reasons: Firstly I don't think that would be difference in sound quality. Apr 16, 2011 · It seems to me that the selection of what op amp to use depends greatly on the circuit they are in as well. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. MUSES8820 is the best, IMHO. Sep 6, 2023 · The whole point in following this passion is to experience difference in sound, atleast to me If you are really interested in checking it out, you are whole heartedly welcome to try swapping em. Mar 22, 2022 · These are probably among the two highest of the best sounding dual opamps around today. Each part has its specific specs tailored for the application. just replaced my already very good opa2134 on my dac analog pre-output with the opa1656, and not only it keep warmness of the opa2134 but feeds more details to my Naim amp hifi system , which is amazing ! so one more time thx G. This feature, in combination OPA2134 data sheet, product information and support Feb 28, 2021 · The best sounding op amps for audio work. Mar 17, 2019 · Many high-end audio manufacturers still use THT technology and avoid SMD at the sound-relevant points. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. We are also using Jan 10, 2016 · I talked yesterday to my buddy Greg B. The applications that slew rate limiting is important to take into account is using the device in non-audio applications. I'm still waiting for OPA1656 in the mail. OPA2134 gain stage with voltage series feedback. Thank you, Dan ••• Mar 17, 2019 · The OPA1641 would be slightly better. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). The images I post get fairly degraded. Although I am a fan of the OPA2134, I still have very considerable respect for the NE5532. PRODUCTION DATA. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. Feb 28, 2021 · OPA2134 has good tone and detail when in single mono mode ie with two op amps one per channel. Mar 30, 2012 · I have a Crate VC508 guitar amplifier that many recommend modding by replacing the TL072CP opamp chip. The first 3 plots below are the analyzer in loopback at -10dBV, -1dBV, and +3dBV. 1. common mode voltage that I've measured on any op amp. It was recently re-capped and all new guts put in . The AD826 seems to be smoother than the OPA in the voice range. Download. On the α24, this is a non-issue. The input noise voltage is 8nV/√ Hz, almost twice that of the 5532. TI’s OPA1656 is a SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier. The TL072 is around a half inch rectangle with 8 legs going into a socket. 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. If this is an audio project, close your eyes and just get the 627 or the 637 depending on the gain needed. As Jul 1, 2018 · In my honest opinion V6 will be really great addition to any audio system, it uplifts sound quality in every aspect compared to other cheaper Op-Amps. May 23, 2018 · Sorry I can't compare the sound of these opamps. For my test circuit I am using: +/- 13. OPA1656 sounded worst, Muses 8920 sounded best. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational • Professional audio mixer/control surface • Guitar amplifier and other music instrument amplifier • A/V receiver • Bookshelf stereo system • Professional audio amplifier • DJ equipment • Turntable • Special function module 3 Description The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio Is OP Amp swapping the key to better sound quality or a complete waste of time?Op Amps: https://fosiaudioshop. Composite amplifier is one of the best application with opa1656. The Features of OPA2134 • Superior Sound Quality • Ultra-Low Distortion: 0. I have a 1988 carver stereo per-amplifier. Even when it would it is really small and you can't say which is better. 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. Since I am not interested in the V6 Vivid Dual that it comes with. Order samples here: OPA1656. 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. So I can use any one of these ( one at a time !). I haven’t tried it for audio as outright replacing JFETs with CMOS looked like blasphemy to me. When used as a single dual stereo op amp I find the soundstage a bit flat and a thick sound. The improvement in sound is apparent and the sound is a bit more open on the very high quality source material. Mar 17, 2019 · The OPA1656 has 6dB more open loop gain at audio frequencies, hence the better distortion. Talking about AIYIMA A07, it will end up in a dustbin soon. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. 000035% (-129 dB) at 20 kHz and improves audio signal fidelity across the full audio bandwidth. 6SL7 tube SRPP gain stage with voltage shunt feedback. Sep 27, 2019 · The high bandwidth and high open-loop-gain design of the OPA1656 provides a low distortion of 0. 8/-5. Mar 17, 2019 · When we developed the OPA1656, this was also a major design target [] This article shows the measurements I took on the OPA164x family. arr gmfvyp folel qwrsd rtxu uzj weso mlp yfpoq raeqkn