Opa1656 vs lm4562

• Opa1656 vs lm4562. LM4562 may be slightly better, but the difference is not audible. They are "better' ones you can try - LM4562 is always a good candidate just check the supply voltage fist. Jun 29, 2021 · opa1656が最新でスペックの高さが評判でしたので、最初は期待しましたがドライであっさりした音で最初はつまらなく感じました。しかし、ths4651と組み合わせると音響の下支えを担うように鮮やかさを増すようになりました。opa1656は良いです。 Jun 8, 2023 · The OPA1656/1655 released after the OPA828 are also excellent enough to dispel the image of past CMOS input. Aol Apr 10, 2019 · TI recently introduced two devices worth looking into, updated BUF634A and OPA1656, both available as prototypes directly from TI. Some say it is the same as LME49720, but anyway this LM4562 is lot cheaper. 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. 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。 May 15, 2022 · Buggle2 Riaa board. Those are fine. 000. Especially on the sound-stage and overall music presentation is more forward with this LM4562. 7nV/rtHz @ 1kHz vs 4. It has the most stable input capacitance vs. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. It offers exceptional performance in almost any audio application. Now, we run through a hand calculation to find the total noise of a simplified audio system. the differences aren't huge, but big enough to make a change worthwhile. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. 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 Mar 17, 2019 · OPA1656 is less noisy than the OPA827, 2. Also comparisons of the OPA627 and OPA637 would be good. The price for the new LM4562 also dropped significantly at the beginning of 2019. 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! Apr 17, 2021 · I will show the difference between the OPA2604 vs the NE5532 OpAmp. Click to expand Distortion will strongly depend on load it drives. One other very noteworthy difference is the Vivid has a strong attack, but loses a bit on the decay so sustain is better on the SS360x. OPA1656 Feb 20, 2021 · The BJT input LM4562 has lower typical input voltage noise (2. LM4562, opa1656, opa1641, opa145 all same problem. CMRR is not a big issue. The final mod was to swap NE5532 for LM4562 and this turns out to be the icing on the cake. Jul 4, 2009 · The Opamp thread | Page 482 | Headphone Reviews and Feb 11, 2021 · Not all analog processes have moved to 300mm (12 inch) wafers. Probably the circuit is better than the first one or something went wrong or I was just imaging all of those. Thanks in Sep 14, 2021 · Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. Not bad for a $4 part. 83 k : 100 : 150 : 22 nF//4. I note that the LM833 and LM4562 datasheets contain identical RIAA phono circuits in their application notes. 000196% I recently learned that an OP-AMP called OPA837 was released. LM4562 -- not by a very large margin ! 2. It seems paying a few more dollars for LM4562 op amp instead of NE5532 doesn't really make much sense. The sound difference after using NE5532P to this LM4562 is somehow so much different. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. 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. Here are the measurements of the dual mono and with different op amps (Sonic Imagery 994, OPA1656, LM4562). Tryed opa1611 opa1602 - both very sensitive to RF enviroment. Aug 22, 2007 · Before I got an AP I used a Boonton 1120 -- same story -- the NE5534 in the oscillator couldn't be beat. You have to try it yourself to hear the difference, because the measurement advantage is very small, so it should be non-audible , but it is not. ••• The LM4562 A07 does work really well if you feed it with a good preamp like the Aiyima T6 Pro which also is flexible when it comes to op amps. google. オペアンプの違いによる音質比較表 Jul 4, 2009 · Of these top three my favorite is MUSES03. Any way, it is also Mar 17, 2019 · I measured again the noise of OPA1656 vs OPA1642. Oct 13, 2020 · Currently, the op chip used on AIYIMA A04 & A07 is NE5532. You are right, OPA1656 is interesting part, but as anything in engineering field it depends on user case and circuit environment. The LM4562 has lower typical input offset voltage than the OPA1656 (+/- 0. - Page 2 Part Number: OPA1656 Other Parts Discussed in Thread: LM4562, Hello, I am designing a phono pre-amp and found application report SNAA046A–July 2007–Revised May 2013. Maratnz likes to drive 5532s with the full swing of +/-22V which is too much for most of the stock replacements. The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Feb 28, 2021 · The LM4562 datasheet indicates it has at least 12dB greater open loop gain than LM833 at all audio frequencies. com/open?id=1kzo6G9kJmkIaBmcjEtPp6dqDExES677MChannel animasi Order today, ships today. Nov 18, 2022 · I don't know what opamp I will actually use a s a replacement--NE5534, LM4562, or OPA1656---but my point will be to rid the deck of those awful New Japan Radio chips that it is full of. OPA828 feels like the most technically correct presentation of the sound, done at a far higher level of quality than say LM4562. 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. 01%, 10V step vs 1. I had no oscillations or instability with the OPA1656. The schematic, spectrum and results are given below. オペアンプの違いによる音質比較表 Mar 5, 2018 · LM4562 LME49720 MUSES01 Burson Audio V5 Sparkoslabs SS3602 SIL 994 Enh Ticha Version 3 smd LM4562 LME49720 MUSES01 Sparkoslabs SS3602 SIL 994 Enh Ticha Measurements made with APX 525 with software APx500 V3. I can't really hear difference this time. Apr 30, 2021 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. I can't say for sure. Jul 3, 2019 · If you find a review, it could be for an OP275 buffer (they changed the build spec to LM4562 just 2 days ago). . May 19, 2017 · An OPA1612 has slightly better specs than an LM4562---less noise and distortion, faster, and more output voltage swing. 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. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. X-fi Prelude' comparison a few threads down and I basically concluded from that the AD8620 might be considered better than the default LM4562. Dec 10, 2021 · This is my first time doing anything DIY with audio. I used 10 or 12 in my preamp rolling project - never a problem with LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. 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. no mincing words, there was an immediate improvement in all respects - dynamics, soundstaging, bass, detail, transparency. 25 V to ±18 V (4. We are also using Feb 11, 2021 · Yes. ti. OPA1656 sounded worst, Muses 8920 sounded best. 1F X7R on the backside with the shortest possible lead length. 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 TI’s OPA1662 is a Dual SoundPlus™ low noise (3. Here we recommend some replaceable OP chips. 8nV/rtHz). My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. The NE5532 is perfectly fine. Each part has its specific specs tailored for the application. But it's a bit emotionally distant compared to MUSES03. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. 4 Calculating Voltage Noise at the Output. 9nV/rtHz vs. NE5532: The resolution is average, the high frequency is relatively dry, and the low frequency is Aug 1, 2024 · And when I was making a Whammy headamp, I got by far the best sound with the Muses 02. Mar 17, 2019 · I purchased 10 OPA1656's. The FET-input architecture achieves a low 2. TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. The input is essentially shorted with 10mohm resistor in order to have a -140db control signal. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. Feb 4, 2014 · Avoid LM4562/LME49720 and OPA2134/2604 if you do not want to re-engineering circuitry to make it stable. It should show pretty high distortion, low slew rate, etc. 7 nF//500 pF 47 nF//33 nF LM4562 www. I'm still waiting for OPA1656 in the mail. 1. the ne5532 looks a bit harder, narrower and more direct, the other two a bit more relaxed and Aug 28, 2023 · LM4562 vs NE5532: What are Differences and How to Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. Don't llike an idea to design triple shielding box for any simple project I may come up with. Jan 19, 2023 · The LM4562 is an excellent op amp for audio applications and is one of the more reasonably priced. common mode voltage that I've measured on any op amp. 3 MHz. It really depends how much work is involved. Except opa1656 rest of opamps are available on rsdelivers. OPA1656 is a bit noisy at low frequencies. Feb 29, 2008 · I've read about the 'Sondigo vs. Every amp. Mar 17, 2019 · If you pick a point on the 1/f portion of the noise spectral density curve you can see that the two parts are essentially identical. I think it's a matter of circuit design and implementation. It has a style of sound that seems to evoke more emotion and make the music more enjoyable than the others. Find parameters, ordering and quality information Mar 11, 2020 · JLCPCB Prototype for $2(Any Color): https://jlcpcb. On the α24, this is a non-issue. I don't care about listening tests or something else, just want to use the technical better one in my amp. Nov 30, 2021 · Stability should be considered especially with the wider bandwidth of the OPA1656. For example, at 10Hz both parts are approximately 35nV/rtHz. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 3V inside of each supply. I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. 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. I've been researching and designing possible solutions around LM833 op-amps. Are there any other Aug 26, 2020 · MA12070 vs TPA3255 (Scientific Measurements Aside) 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. Are you just interested in trying something different? Reactions: 1 user Jan 7, 2021 · So considering NE5532, LM4562 and OPA2134, OPA2134 gives best measured results in AIYIMA A07. com and all are unity gain stable. Below is a comparison between OPA1656 and OPA1642. ••• LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. I ended up staying with this one. In all, I will say the changes are noticeable, but not earth shattering. Dec 9, 2019 · 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, unless swapping opamps is really fun for you and you have enough money to spend on this hobby. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. Or some other op amp, because their IC socket supports op amp rolling and you can order it with a different op amp if you prefer. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. OPA1656ID – Audio Amplifier 2 Circuit Rail-to-Rail 8-SOIC from Texas Instruments. 2uS to 0. by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES03 0:42~ 1:42~ 2:43~ Apr 21, 2019 · vs Burson V6 Vivid The V6 Vivid has a faster attack than the classic, but still not quite as fast as the SS360x which allows the SS360x to wring out just slightly more detail than the Vivids. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Feb 28, 2021 · The best sounding op amps for audio work. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety 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, May 23, 2018 · The second time I did test with opa1656 and opa1612. 1mV vs +/- 0. but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. Help! LM4562 data sheet, product information and support Oct 10, 2020 · Aiyima a04 with LM4562 is more dynamic, goes deeper in the bass and sound clearer. Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. 1 k : 3. Jun 19, 2021 · The latest op-amp that I am still using until now is LM4562. Question is OPA1612 or even better if you can NJM8830. 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. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. 5 V to 36 V) on 3. TL072 was VERY good !! Equal or better Jun 2, 2019 · Of course. 144dBc=0. 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 Oct 30, 2022 · What op-amp could substitute a TL072? Jul 4, 2009 · The Opamp thread | Page 439 | Headphone Reviews and Listen to the V3 with different dual op-amps socketed and experience the changes in sound! The demonstrated op-amps include NE5532, JRC4580D, Sparkos SS3602, Feb 23, 2019 · Measurements of 19 20kHz IMD of various opamps at gain Mar 5, 2007 · I got curious today and decided to try and see how our old friends compared against the latest and greatest (?) chip. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. NJM is very good in this aspect, perfectly works even on a breadboards. Jun 13, 2016 · 【やってみた】オペアンプ聴き比べ、最強のオペアンプ決定戦 Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. Figure 3-4. Aug 22, 2007 · What was omitted from the LM4562/LME49720 history is that the part was cancelled, because the 6" wafer line it was sourced from went way, and then resurrected on a new 8" wafer line. 5 metre cable at 33. 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 · That's interesting, because in my little opamps rolling experiment it did not do very well. New BUF634A has higher slew rate, wider BW and decreased quiescent current in wide-BW mode, and is cheaper than original 634 Mar 17, 2019 · The OPA1641 would be slightly better. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. Very nice presentation in the link! Thank you. Although NE5532 performs well, many audiophiles still want to improve the sound quality by replacing the OP chip. 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 Apr 6, 2020 · They are not bad opamps at all. I didn't investigate further, and I didn't have the OPA1656 nor the 1642 to try. Especially compared to those $2-3-4,000 Mar 22, 2022 · These are probably among the two highest of the best sounding dual opamps around today. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. Tom ••• Mar 17, 2019 · OPA1656 rolling I tried in all cases to bypass the rails with a 0. OPA1655 THD=-114. Dec 6, 2018 · Tone controls? DAC reconstruction filter? The better FET-input op-amps are expensive because they are laser-trimmed and prices can be crazy. Having LM4562 in both amplifiers and they start to sound the same. The successor process, which is on 300 mm, was not ready at the time I was working on OPA1656. The OPA1656 has lower typical settling time than the LM4562 (800nS to 0. Two schematics in parallel and eight in parallel for both 1656 and 1642 were measured. That said, a few people consder the OPA637 an 'upgrade' from the AD8620. The opa1656 this time is smoother than the opa2156 in previous test and opa1612 has better bass than previous. Regardless, OPA1656 is on a fairly mature process that has been around for over a decade. In 2022 one would suggest OPA1642 and OPA1656 methinks. This video title is; 2Which OpAmp is Better for 20W Class A Amplifier - OPA2604 vs NE553 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, 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. Download. 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. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. This is likely due to significantly lower current noise in the NE5532 compared to the LM4562. For me NJM8830 is better, it can really only compete with LT1028. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Aug 20, 2023 · Fosi Audio V3 op-amp rolling, has anyone tried it? Snake Aug 1, 2022 · Assuming the amp can handle it, you could try something like a uA741 as a worst case test. Total Noise of OPA1656 vs OPA1612. I would have no problem staying with them, but I like tinkering. 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. Page: 42 Pages. The knee in the OPA1656 noise curve is higher because the broadband noise of the OPA1656 is lower (2. I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. 4nV/rtHz both flat. The chips were put into the active filter at the output of a DAC ( Zhaolu V2. Nov 9, 2010 · LM4562 / LME49720 / LME49860 - Do they sound different Oct 28, 2022 · So far I can't get stable noise data with any TI IC. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. 5 ). I looked at the Slew Rate as my main Feb 4, 2014 · The thread was started in 2014. Opa1656 has good phase response at high frequency. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. ••• The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. OPA1656: 3Mb / 42P [Old version datasheet] OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers REVISED SEPTEMBER 2022: Apr 16, 2011 · I recently did a series of mods to my diy Gigawork big dac and they all improved the sonics. 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. Other cheap ones on my radar - OPA2134PA, OPA1612, LM4562NA. It's best use as an alternative to opa1612 when noise is not a big concern. The desire is to make the deck all that it can be; after all it really is a quite inexpensive upgrade in the end. 4 at 1KHz. MUSES8820 is the best, IMHO. I tested a few in both units and the best combination to my ears at least is the opa2604 in the output stage of the T6 Pro and the LM4562 in the A07. com with a TI insider involved. 1%, 10V step). For this example, we are using the OPA1656 in a non-inverting configuration with a gain of 40 dB or 100V/V. Since I am not interested in the V6 Vivid Dual that it comes with. In that case, for example, the Sparkos SS3602 sounded very sharp, the OPA1612 oscillated like crazy, and the OPA2604 and TL072 were very dark sounding. Find parameters, ordering and quality information Feb 6, 2018 · 最近オペアンプ交換が楽しくて色々試してみました。個人のメモを兼ねてレビューしてみます。環境は、CD取り込みからハイレゾ化まで手軽にできるCurioSoundを使用してCDから取り込んだデータを96kHz 24bitのflac形式で保存。 "安いのにすごいSHANLING M2sを買いました"で紹介したM2sからラインアウト OPA1656 - Better imaging / separation of instruments. I listened to OPA2134, LM4562, and NE5532, and OPA2134 sounded the best. 9nV/rtHz as opposed to 3. Composite amplifier is one of the best application with opa1656. (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. Nov 26, 2017 · thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. But $40-57 each. 1) Can I replace the LME49710 / LM4562 referred to in the report with the OPA1656 without changing any of the values in the circuit design in Jul 23, 2022 · DACのオペアンプを交換しました。線が少し細くなりましたが、小音量で全体のバランスが良くなり高域のクリア感が増しました。SOP8パッケージの交換は面倒なので、最後にすべくOPA1612に変えちゃいました。SOP8をDIP変換で交換出来るようにとも考えましたが、安定性を考えて中止です。 Nov 8, 2006 · In Active crossover application, OPA2134 and OPA2604 Mar 17, 2019 · The OPA1641 would be slightly better. File Size: 3MbKbytes. 3nV/rtHz @ 1kHz). Then try a modern opamp like the LM4562 or OPA1656. Results . 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Part #: OPA1656. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. comAll files and Gerber :https://drive. Nov 25, 2015 · LM4562 vs OPA2134 vs [ ? ] 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. To check if they will match the previous ones that were made with balanced 10x paralleled op-amps. May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. PRODUCTION DATA. Pricing and Availability on millions of electronic components from Digi-Key Electronics. Two identical gain 11 amplifiers were tested. 5mV). LM4562 can drive 600 ohm or lower very well but are not particularly low noise device. Wow moment. The output swing for Aol should be considered as it is different between the two devices. 3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp. Can I please ask two questions. vwiyjt qlymcyq nkk mrud qpw yvfz mohenr vbugybs lmub jqxrqzv