Opa1656 vs lm4562 sound quality. There are many reviews of audio hardware and expert members to help answer your questions. Below is a comparison between OPA1656 and OPA1642. 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 Mar 17, 2019 · OPA1656 is less noisy than the OPA827, 2. The LM4562 has lower typical input offset voltage than the OPA1656 (+/- 0. Sep 27, 2019 · The high bandwidth and high open-loop-gain design of the OPA1656 provides a low distortion of 0. 100uV offset x gain of 5 = 0,5mV . I'd be curious if the new-er opa1656 doesn't beat the NE5534 in almost every one its edge cases (namely, it's rather nice output stage) -- the low distortion oscillator thread makes a case 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. 01%, 10V step vs 1. Craig Jun 29, 2021 · これが使えるならば、さらにデータ上は上位のths4651がいけるのでは？と思い、交換してみたところバッチリでした。解像度、空気感、柔らかさがmuses01、lme49990よりも良く、好みの音です。opa1656が最新でスペックの高さが評判でしたので、最初は期待し Jun 2, 2019 · Apollon Audio Class-D Amp Build Quality. This creating superior imaging for the vocal while sacrifice the wider music sound-stage and music presentation. I hesitate to recommend those without simulating the circuit. 00003%) to easily satisfy the most demanding audio applications. The OPA1656 is somewhat worse, even A weighted at 4. Feb 11, 2021 · As a quality fanboy I look at the parameters. The applications that slew rate limiting is important to take into account is using the device in non-audio applications. CMRR is not a big issue. It's best use as an alternative to opa1612 when noise is not a big concern. 5 metre cable at 33. DAC: ESS ES9018 with LM4562 I/V and filter stages Feb 11, 2021 · Dont make me laugh, if you can't hear the difference 5532 vs OPA1612 than you should not be very concerned about SQ (in your case). OPA828 feels like the most technically correct presentation of the sound, done at a far higher level of quality than say LM4562. Jul 11, 2022 · I am wondering if there are certain parameters that will make popular opamps like NE5532, LM4562, TL072, OPA2134, and others, to give the best performance as far as THD and sound quality? When I studied datasheets for those opamps it seems that the lowest THD is achieved when R load is 2k. Together will make a really good composite amplifier, I will try this application at some stage. 7 nF//500 pF 47 nF//33 nF LM4562 www. • 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 The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Feb 11, 2021 · The subjective sound is incredible. The circuit with the values shown in the linked article (but without the High and Low resistors and without the 1K input resistor): Feb 28, 2021 · Curiously enough it seems to sound its best in combination with the OPA2134. TI’s OPA1656 is a SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier. . I also feels the music is more focus in the center. 0008%, CCIR SNR: >112dB referenced to 2V RMS Topology: based on OPA1656/OPA1678 Gain: 10dB referenced to mains Output Impedance (line out): 75 ohms. (Supported by same response graphs in their datasheets) Anybody who has played with these opamps care to share their opinion on how they sound? (HA / Metal can models excepted) Mar 17, 2019 · I listened to OPA2134, LM4562, and NE5532, and OPA2134 sounded the best. Feb 10, 2020 · And I've tried many Opamps as well: the stock 5532, some directly purchased from TI 5532P and 5532AP, LME47920, LM4562 and finally some OPA1656 and OPA1612 on adapters. It is not a wider sound stage among those previous op-amps I have tested. ••• Aug 22, 2007 · Before I got an AP I used a Boonton 1120 -- same story -- the NE5534 in the oscillator couldn't be beat. It has the most stable input capacitance vs. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Aug 1, 2024 · The TL072 H does show a faster slew rate than before (now 20, was 13) but the same poor voltage noise and the same inability to effectively drive anything below 10KΩ. OPA1656 really is excellent. One S300iu integrated amplifier | Stereophile. Opa1656 has good phase response at high frequency. It would cost some serious cash to get 8 channels of this quality. 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. To ensure that the most challenging loads are driven without Sep 14, 2021 · Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. IME they are very good audio opamps, but a possible weak point may be their sensitivity to radiated RF. ChristianThomas. 9nv so it's pretty darn noisy for anything other than LOMC cartridges. In terms of pure sound quality and power, is there a difference between the A07 and the typical AV receivers or stereo amplifiers from brands like Sony, Yamaha, Denon, Marrantz, etc? Archived post. Also FWIW, the 1820m with OPA1656 in it hasn't been recapped yet but they chart to still be reasonably healthy. See attached, Jan is using the opamp for his project MRK 3 input box (input attenuation & gain) prior an ADC for measurement purposes :redhot: Currently it is not clear, how the measurement (customer) setup was really Mar 17, 2019 · Many high-end audio manufacturers still use THT technology and avoid SMD at the sound-relevant points. I have used the OPA2134 as the first gain stage in a number of high quality DIY phono stages, with the LM4562 in the second overall gain stage. They are 2. 0008%, 20Hz-20KHz, at 2V RMS IMD: <0. New comments cannot be posted and votes cannot be cast. 0026% LM4562 (DIP, Blue trace) -1,2/+2. #1 Choose the LM4562 (LM4562 vs NE5532): High-End Audio Quality: If your application demands the highest audio quality, low distortion, and minimal noise interference, the LM4562 is a better choice • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. I can easily compair them , one with NE5532 and the other with LM 4562. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 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 · 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. The question is rather moot anyway. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). com In no case did I have too high expectations regarding the sound Jun 8, 2023 · THD=-117. The LM4562 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. May 23, 2018 · Sorry I can't compare the sound of these opamps. Thanks in Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. The OPA1656 has lower typical settling time than the LM4562 (800nS to 0. The LM4562 combines extremely low voltage noise density (2. I don't care about listening tests or something else, just want to use the technical better one in my amp. But once it comes, I'm excited to try to listen to that. 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. View attachment 309771 View attachment 一个意外的结果是、ne5532在第一级中的使用有多安静、在第一级中肯定比 lm4562安静得多。 这可能是由于与 lm4562相比、ne5532中的电流噪声明显降低。 opa1656作为 u1、 lm4562作为 u2的组合提供 了最低的测量噪声、但当 lm4562替换为 ne5532时、可闻差异可以忽略不计。 Feb 17, 2023 · The NE5532 was really good for its time but has been superseded by quite a few opamps since then. TI was going to discontinue the LM4562 and others as well. LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. I had (indeed) in mind AD844 & OPA861 (not sure the first don't use feedback!) after reading many threads here and there but was asking myself if there were something better with all the launchs from several years nowMy very basic undestanding is they were good to be loaded with relativly high impedance outputt of current outputt dac chips while giving at Aug 22, 2007 · I had a Rotel RA-930AX at hand which I had recently upgraded, reduced the opamp supplies to +/-16. 5mV). 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. May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. Mar 17, 2019 · There are a few 5532's in the unit too-primarily as input and output stages, and am considering replacing with LM4562's, which I have used in other things such as tape machines and phono preamps. In some respects I think of the LM4562 as a somewhat upgraded NE5532. Jun 19, 2021 · Especially on the sound-stage and overall music presentation is more forward with this LM4562. I routinely use OPA1656 and related on adapters without any issues. 7nV/√ Hz) with vanishingly low THD+N (0. 75V peak corresponds to) at 20kHz. The main reason I can't perform the test is because the current setups of mine are all soic8 package. MUSES8820 is the best, IMHO. USB Receiver: C-Media CM6635. Mar 17, 2019 · Low offset is important in audio when you don't use a servo and don't want high offset at the output . PRODUCTION DATA. To help others to understand what other audio components are being used, a SML SU-6 and SH-6 are used. 9nV/rtHz vs. Feb 20, 2021 · The BJT input LM4562 has lower typical input voltage noise (2. Thread starter maty; Start date Jun 2, 2019; (Sonic Imagery 994, OPA1656, LM4562). 000035% (-129 dB) at 20 kHz and improves audio signal fidelity across the full audio bandwidth. Those are fine. In 2022 one would suggest OPA1642 and OPA1656 methinks. OPA2134 is more used and more liked, than almost any other JFET op ( Maybe still TL072 is most used, but it is far from OPA2134 in quality )-----OPA2134 is probably the most used DIY Audio op, all categories. Each part has its specific specs tailored for the application. Also, a LME49720HA that costs 5 times as much as the PDIP or SMD version should also be interesting in terms of cost calculation. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. Main exception would be LME49860 is specified for higher voltage rails. Choosing between the LM4562 and NE5532 depends on your specific application requirements and priorities. Mar 17, 2019 · Thank you so much for the hints. Jan 7, 2021 · Power supply quality is what defines any amplifier in the end. A 1mV offset like OPA1642 ( also Jfet) = 5mV , definitely a click when relay switches. OPA1656 sounded worst, Muses 8920 sounded best. I'd go with the LM4562 (= LME49720) instead. Aug 28, 2023 · 2. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. 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. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. It has a style of sound that seems to evoke more emotion and make the music more enjoyable than the others. 2uS to 0. Jul 3, 2019 · WANTED: Happy members who like to discuss audio and other topics related to our interest. Subwoofer Out Frequency Response: -3dB at 80 Hz THD: <0. OPAs 1642 and 1656 MUCH MUCH better. Very nice presentation in the link! Thank you. 1 k : 3. There is no practical audio program material which will have 24dBu (which is what 17. 3 MHz. LM is the best overall, it sounds the most balanced, very natural/smooth/clean, doesnt exaggerate anything but can sound lacking in impact. The combination of OPA1656 as U1 and LM4562 as U2 gave the lowest measured noise, but there was a negligible audible difference when the LM4562 was replaced by a NE5532. BTW you have now 2 reasons NOT to use LM4562 :) May 19, 2017 · An OPA1612 has slightly better specs than an LM4562---less noise and distortion, faster, and more output voltage swing. 7nV/rtHz @ 1kHz vs 4. How to choose between lm4562 vs ne5532. OPA1656 : 500 uV , not laser trimmed ? Mar 17, 2019 · The OPA1641 would be slightly better. I'm still waiting for OPA1656 in the mail. The FET-input architecture achieves a low 2. Even when it would it is really small and you can't say which is better. 707dBc=0. strangely its probably the most boring sounding one when paired with 400i but the best sounding with hd600 Mar 17, 2019 · The OPA1641 would be slightly better. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. 4nV/rtHz both flat. I would not classify the OPA1656 as a high speed amp in this context. 8 mV 0. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. Swapping out the 5534 or 5532 without looking a little deeper isn't wise. 3nv/rtHz at 1kHz. 3 mV 0. Aol Feb 4, 2014 · I think this has all been discussed before, but comparing datasheets for LM4562, LME49720, and LME49860, they sure look strikingly similar. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. OPA1656 is a bit noisy at low frequencies. The A07 now gives a very pleasing, laid back and an analog, almost vinyl-like sound quality to the music! Bass performance is also quite noticeably improved as well. 3V inside of each supply. OPA1656 • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. Joined 2006. Mar 17, 2019 · As compared with the OPA1656 which is 24V/us. It measures better to, with LM4562, but the difference is much smaller than the sound differences. Desire to learn and share knowledge of science required. ti. 8/-5. Sep 14, 2021 · The LM4562 is an exception, but otherwise it are the fast op-amps that JRA has trouble with: Misbehaving: OPA1656, gain-bandwidth product 53 MHz LME49990, 110 MHz OPA1612, 40 MHz Behaving well: OPA2604, 20 MHz OPA627, 16 MHz OPA2107, 4. 7nv/rtHz at 1kHz typical, but the noise for MC due to the 100 ohms and 392 ohms is 2. Composite amplifier is one of the best application with opa1656. No regrets with this amp whatsoever after rolling. Two identical gain 11 amplifiers were tested. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. 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. 1%, 10V step). Jan 19, 2023 · - LMP8672 (probably discontinued) - OPA1612 (which is barely available in SOIC8 at the moment) - ADA4898-2 - OPA1656 (if the circuit around it is right, it performs like opamps which are much more expensive, because of the FET Input stage it doesn't produce so much noise even with higher resistor values on its inputs) - AD8599 ( not a very fast opamp but therefore it is easy to get it stable 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. Feb 11, 2021 · Yes. The type or style of the power supply, the instant current it can supply, and how clean the power is are always the defining characteristics of an amplifier and easily the most expensive part of a high quality amplifier. Feb 4, 2014 · The thread was started in 2014. 3nV/rtHz @ 1kHz). Nov 8, 2006 · OPA2134 is more stable, as it is not too fast for Audio. 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. Jul 4, 2009 · Of these top three my favorite is MUSES03. Feb 11, 2021 · looks very similar to the eighth image from post #2 of Bel Canto's S300i/S300iu - driven by dual mono Icepower amplifier modules with switch mode power supply - go to Inside the Bel Canto S300i integrated amplifier | Audiokarma Home Audio Stereo Discussion Forums and Bel Canto e. For several reasons: Firstly I don't think that would be difference in sound quality. com SNAS326K –AUGUST 2006–REVISED DECEMBER 2013 LM4562 Dual High-Performance, High-Fidelity Audio Operational Amplifier Check for Samples: LM4562 1FEATURES DESCRIPTION The LM4562 is part of the ultra Aug 26, 2020 · A pair of *genuine* OPA1656's is the consummate and necessary upgrade for it's stock NE5532 opamps. I like the OPA1642 due to its MUCH reduced bandwidth compared to the 1656 (11MHz vs, 55 May 15, 2022 · Buggle2 Riaa board. The input is essentially shorted with 10mohm resistor in order to have a -140db control signal. common mode voltage that I've measured on any op amp. I still have some channels of 2068 with old caps, so can A/B and the difference is shocking in a very good way. Oct 10, 2020 · In the case of Aiyima a04 ( I have two of them ) it is very clear that the sound quality gets better with LM 4562 instead of NE5532. Every amp. Nov 8, 2022 · The original opamps are LM4562, otherwise known as LME49720. Another parameter that I noticed was the voltage. 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. 8nv/rthz so the net input is about 3. You are right, OPA1656 is interesting part, but as anything in engineering field it depends on user case and circuit environment. Member. But it's a bit emotionally distant compared to MUSES03. I wonder how the sound of CMOS would compare to the JFET? Apr 10, 2019 · 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. 1mV vs +/- 0. Some will point out the OPA1612 (which is even better) or the OPA1656. The output swing for Aol should be considered as it is different between the two devices. Find parameters, ordering and quality information You see the opa2604 has quite a thick sound, easy to listen to, not bright or analytical in any way and the LM4562 leans in the opposite direction, not too much mind but enough to liven up the opa2604 and put some sparkle in there while the opa2064 beefs up the low end of the LM4562 quite nicely and the end result is a fuller rich and detailed Nov 25, 2015 · Ive compared the NE5532, NJM4556 and LM4562 so far. Any way, it is also Jan 30, 2004 · LM4562 and LME49720 are the exact same part just different model stamped (stated by an ex-employee) The LME49860 is just a LME49720 that passed a higher voltage test. Dec 6, 2018 · Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. 000130% Although the price was also cheap, It is a pity that NS was absorbed by TI and was abolished after losing the brand power competition with BB. 83 k : 100 : 150 : 22 nF//4. Thank you, enjoyed reading all these pages, and am glad TI is making improved audio for us all to enjoy! Nov 30, 2021 · Stability should be considered especially with the wider bandwidth of the OPA1656. mnvrf mmmmqgut fnayr auejvnb ozsev eili pqpg wzimn nnjpxe irfomv