Opa1656 vs opa2134. A quick snapshot of the OPA1656 performance specs: Nov 8, 2006 · OPA2134 and OPA2604 are very close in data. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. 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. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. the O2 dScope measurements that NwAvGuy posted. (Came with the other DAC an Aune X8 XVIIIth. OPA2134 The OPA1656 is a high-voltage CMOS with the lowest voltage noise in the industry. 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. I've been using mostly LM4562, except when I need a JFET opamp (high impedance inputs for example). I'm still waiting for OPA1656 in the mail. Thanks in Mar 17, 2019 · Stupid question from newbie, have twelve OPA2134 in my amplifiers in dip8 container. Every amp. 8/-5. 4 nV/rthz. It may or may not sound at all noticeably better than a TL072, it depends on the circuit and application. . The OPA1688 even beats it on noise. 9nV/rtHz broadband voltage noise. Opa1656 has good phase response at high frequency. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. Jul 29, 2002 · Haha, in fact, it makes you wonder if a "better" opamp will yield just as much (or more) improvements over Burson. The opa1656 this time is smoother than the opa2156 in previous test and opa1612 has better bass than previous. This video title is; 2Which OpAmp is Better for 20W Class A Amplifier - OPA2604 vs NE553 Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. Double-blind AB we also preferred the OPA2134 at the listening position, especially with the EQ in heavy use. OPA2134 is good but it consumes more power than normal (8 to 10 mA per IC) and it is not rail to rail output. Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. Don't let power supply current limitations get in the way of performance. Before that, it was as sharp and cold as a swiss knife. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. I've dialed back the tube volume some which reduced the bloated sound stage to a bit more normalcy. But I really like the FET's in that position. %PDF-1. as well and I might try a opa2134 I have lying around. If a transient causes the op amp inputs to be pulled apart, the differential input voltage forward-biases those diodes causing a large input bias current. ah so much other untested opa's 1678 still on my list ina1620. 25 V to ±18 V (4. 8 mV 0. Di salah satu gambar ada sedikit overview dan perbandingan OPA1656 vs OPA2134 yang saya comot dari datasheet-nya. That seemed like a reasonable target for the supply current of the OPA1656 as well. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Nov 30, 2021 · The output swing for Aol should be considered as it is different between the two devices. 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 Feb 11, 2021 · I last tried the circuit with OPA2134 in year 2000, and with TL074 in 1992. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Feb 10, 2012 · The 5532/5534 is an excellent sounding and very durable work horse; the OPA134 series can be adequate too. OPA2604 is a little bit faster. 3V inside of each supply. -131 dB THD+N at 1kHz, 600 ohm load, 3. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. I would say it depends on what circuit. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. 6 fa/rtHz broadband current noise. I've ordered some opa2604's from ebay still in transit to play with. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. 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. Are there any other The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. Jan 7, 2021 · So considering NE5532, LM4562 and OPA2134, OPA2134 gives best measured results in AIYIMA A07. Easiest is to replace LF351N and LF353N for the OPA134 and OPA2134 just like the shop in Idaho did. Each part has its specific specs tailored for the application. 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. The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Jun 13, 2016 · ポータブルアンプのオペアンプ、オペレーションアンプの交換の実験です。なかなかオペアンプの聴き比べは手間がかかるもの、今回は安価な価格帯のオペアンプから、様々な聴き比べをしていきます。 May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. 1-nV/√ Hz noise density with an ultralow distortion of 0. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Two cases were evalutated – in a I use an A07 with a Drok 48v, 10 amp adjustable power supply, and run Dali Spektor 2 speakers with it. by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES03 0:42~ 1:42~ 2:43~ Mar 17, 2019 · The OPA1641 would be slightly better. I can't really hear difference this time. >100mA output current. Jan 28, 2018 · I had the chance to gather up a selection of opamps from my parts bin, including BB OPA2604, OPA637, AD823, LME49860, JR4556, Muses8820 and 8920, and compare them against each other along with a Burson V6 Classic (thanks to them for sending me an evaluation). Parameter-, Bestell- und Qualitätsinformationen finden Ini adalah salah satu Op-Amp FET input keluaran Texas Instruments yang masih anget karena kalo tidak salah baru keluar tahun 2019 kemarin. I tried the 1656 in there but didn't feel it added anything. Dec 22, 2016 · LM4562 in my revox player took more than 100 hours to sound good. com with a TI insider involved. I think it performs excellent. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. I no nothing about this. 5Vrms signal, 80-kHz measurement bandwidth. Dec 10, 2021 · This is my first time doing anything DIY with audio. OPA2134 is more stable, as it is not too fast for Audio. 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. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. The FET-input architecture achieves a low 2. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. 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 OPA1656 ACTIVE SoundPlus™ ultra-low noise and distortion, SoundPlus™ 8-MHz, 5-pA, High Performance Audio Operational Amplifiers with FET inputs OPA2134 ，5532p dy649 op275 opa2604 opa2211 人声韵味对比。手机直录，被烧友捧上神坛的MUSE02运放，真的值300元么？NE5532还有胜算么，功放DIY之用最贵的运放，OPA2134秒杀OPA2604和5532，来听听效果，AD828运放芯片的电路板音质真的发烧级吗？ Aug 22, 2007 · I had a Rotel RA-930AX at hand which I had recently upgraded, reduced the opamp supplies to +/-16. tiの最新オペアンプopa1656のサンプルを入手したので、動かしてみました。 このオペアンプは名前からわかるように旧bb系のオペアンプです。 opa1642の後継のような位置づけのものですね。opa1642はopa2134の後継のような品です。 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, Aug 24, 2012 · i tryed lme49722 opa2134 and opa1612 ,--. ••• OPA1656 ACTIVE SoundPlus™ ultra-low noise and distortion, SoundPlus™ 8-MHz, 5-pA, High Performance Audio Operational Amplifiers with FET inputs OPA2134 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Hi there probaly a simple question maybe not. PRODUCTION DATA. Sep 21, 2015 · The THD+N of the 1688 should be better too, best I can tell comparing the datasheet graphs vs. Part Number: OPA1656. I can't say for sure. It outperforms most other opamps, very low noise & distortion, doesn't color the sound whatsoever. 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. Other Parts Discussed in Thread: OPA2134, OPA2604. I have a 1988 carver stereo per-amplifier. ••• Is OP Amp swapping the key to better sound quality or a complete waste of time?Op Amps: https://fosiaudioshop. That was the circuit where the OPA2134 sounded better. It needs an adapter though. common mode voltage that I've measured on any op amp. Two identical gain 11 amplifiers were tested. The OPA 627 is well over price and is bass heavy and it’s not worth the price you pay for it The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Ini adalah salah satu Op-Amp FET input keluaran Texas Instruments yang masih anget karena kalo tidak salah baru keluar tahun 2019 kemarin. OPA2604 is one of the few op-amps having +24 -24 max supply voltage. Now all the folks are using opa2134 op -amps as the replacement. OPA1642 is its replacement despite the lower type number. Since I am not interested in the V6 Vivid Dual that it comes with. It's best use as an alternative to opa1612 when noise is not a big concern. Sep 14, 2021 · This leads me to believe there could be an issue caused by the back-to-back diodes across the inputs of bipolar (LME49990, OPA1612) and CMOS op amps (OPA1656). OPA2134 seems inoffensive and defined enough but it's got this flat, slightly recessed in the midrange presentation - not quite what I'd call "dull" but not bright, just a bit "hifi", it sounds like an entry-level Japanese solid-state amplifier, and there's not much openess Oct 30, 2022 · TL072 is a JFET input opamp, so its main strengths are negligible input bias current and input current noise, and a peculiar input common mode range that is useful in many designs, including this one. Same with the OPA627 though. Dec 6, 2018 · I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. May 15, 2022 · Buggle2 Riaa board. However, if you want the best possible stereo imaging and resolution with regard to phase critical stereo information, much lower distortion is in order. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. FET on the OPA1688, but strangely it is actually higher at 10nV/sqrt(Hz). However, there really will be very little difference between it and other high performance opamps. 0026% LM4562 (DIP, Blue trace) -1,2/+2. --lme49722 lme4562 lm4562 opamp is very good sound ,higher ratings than opa2134 -but not as TI-Produkt OPA1656 ist ein(e) Burr-Brown™-Audio-Operationsverstärker SoundPlus™, extrem rauscharm und verzerrungsarm. It performs admirably in virtually all audio applications. 3 mV 0. the best sounding is OPA1612 ,not for driving headphones -low output current drive ,3ma current consumption ---then opa2134 the best all around as preamplifier it can be used at high gain 6-10 times,very good sounding and Musical,good for biassing in class A. In fact, dual OPA627 on Browndogs would have been something to consider as well. 高音質電源改善アクセサリーを中心に、音響を中心に電気で世の中に貢献しています。 Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. com/products/op-amp-chip-muses02-opa2604ap-opa2 Mar 17, 2019 · Hi, Would like to thanx Johnc124 for all the good advices , and all members to this thread. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. Double blind AB, the TL074 circuit had audible hiss from the speaker, and the 2134 circuit did not. ナチュラルビューティー。脚色がほとんどない、いわば素肌美人である。音の抜けが良く、ジャンルを問わず使える感じ。超高域の解放感はもう一歩か。でも、充分リファレンス用途までいける。単価も音質の割に破格と言っていいだろう。 Mar 17, 2019 · 3. I listened to OPA2134, LM4562, and NE5532, and OPA2134 sounded the best. 5 V to 36 V) on 3. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. CMRR is not a big issue. opa2134. The voltage noise figure for the NJM4556A *should* be lower, being bipolar input vs. Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. My favorites at the moment opa1642 and this one opa1656. VIN(DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous TA Operating temperature –55 125 °C TJ Junction temperature –65 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Composite amplifier is one of the best application with opa1656. It has the most stable input capacitance vs. Goggle bill d mod carver c-1. 4558 vs 4580 OpAmp — big enough difference to worry about? (King of Tone clone build) The 4558 isn't a great piece of equipment. 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, Part Number: OPA2134 Other Parts Discussed in Thread: OPA1678, OPA1611, OPA1602, OPA1642. Apr 17, 2021 · I will show the difference between the OPA2604 vs the NE5532 OpAmp. 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. May 23, 2018 · The second time I did test with opa1656 and opa1612. OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). A modern chip like an 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. $´üé‡åáÝúÍ£ë#×wßW˜ÜnL¬Tm\ðõݧõÏw„pæþø«U W`‚ ù@ uŸT¹?MÜSWïêÄÕýÝ»?ÿÜW»za\{é>ûdñ»û? 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. It was recently re-capped and all new guts put in . It is difficult to say which one is better. 4 %âãÏÓ 2 0 obj >stream xÚí=ÛŽ ·‘ïý ý à´y¿ 3Gš A ¬# û ìƒ µ e%9ò:0ò÷Ë;«Hv7ÏÌ8›Å*Îè ²É"«X7 «y¾¬t%î¿‹ÿЖ ù´~Iut•jS–¯:T óoëÝÝúÍ ¯¿{í ¾zµ>¼¾. Using hd600s and 400is to test them Ive compared the Sep 18, 2021 · OPA1656 vs. It is a really nice-sounding chip in the right place, but man it is expensive and you can get nearly there for a lot less in trouble as well Ini adalah salah satu Op-Amp FET input keluaran Texas Instruments yang masih anget karena kalo tidak salah baru keluar tahun 2019 kemarin. OPA1656 Nov 25, 2015 · Im interested in op amp rolling for my amp since its not expensive to try out and I was surprised to find a lot of variation between them, the amp has a very simple circuit so my results could be more siginificant than with other amps. But $40-57 each Careful swapping in a higher bandwidth part, they can oscillate in "old" circuit designs and not all parts are unity-gain stable. Mar 17, 2019 · That's interesting, because in my little opamps rolling experiment it did not do very well. 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. It offers exceptional performance in almost any audio application. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. MUSES8820 is the best, IMHO. Can I just swap it on OPA1656 with just a dip8-soicd switch? The system with active crossovers, so one channel of amp amplifiers some frequency range, each channel have 3 OPA2134, one for gain, and other 2 I dont know. Waktu dirilis, seri OPA165X ini digadang2 menjadi pengganti keluarga OPAX134. I run OPA1656 op amps just for the hell of it and I also have it ventilated by using a simple template I created: View attachment 221182 View attachment 221183 Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. I don't like OPA2134 much, so something like AD8620 would have been another good comparison to Burson. +Gain Bandwidth. Probably the circuit is better than the first one or something went wrong or I was just imaging all of those. 000015% at 1 kHz. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. I don't care about listening tests or something else, just want to use the technical better one in my amp. 53 MHz gain bandwidth product, 24V/us slew rate. We get lower current noise and better EMI resistence. Feb 1, 2006 · OPA2134 is a far easier drop-in replacement for the TL072. ymizfpuqjgrrjuiijwhdlmuduvjimolsvnhojqnrwsvqlkrxltyfv