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Opa1612 vs opa1642 reddit review
Opa1612 vs opa1642 reddit review. TL074 is easily surpassed by OPA1644, that's a no-brainer. OPA1612 on paper has lower voltage noise but whether its lower noise in practice depends on the circuit impedances. 1-nV/√Hz as well as an extremely low distortion level of 0. 5RQ Balanced Power - Tascam CD200 - Oppo 93 - Auvio HD Radio Tuner- MiniDSP OpenDRC-DI DSP, 2x4HD - AcourateDRC - UMIK-1 - ECM8000 - REW - Behringer DEQ2496 - Behringer UMC202HD and Focusrite 4Pre USB - Benchmark DAC2 HGC - Krell KCT pre and FPB 350mcx monoblocks - Sennheiser HD650 - MartinLogan reQuest 15" x 48" electrostatic hybrid with 12" sealed woofer 180Hz cross Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. Jun 5, 2023 · The OPA1642 is significantly inferior to the OPA1612 in many regards (GPW product, output drive, distortion vs output load, input voltage noise for example). Mar 14, 2010 · Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. I'm still likely going to get one unless iFi comes out with an updated Zen Stream soon. The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded. 23rd April 2010 Facebook X Reddit LinkedIn Frequency (Hz) Voltage Noise Density (nV/ Hz) 1 10 100 10 100 1k 10k 100k 1M 10M C020 + + ± ± Treble Bass +15-15 1/2 OPA1656 1/2 OPA1656 Input Output Pad Product Apr 21, 2019 · Sound: For purposes of these tests, I started out with a Burson Swing and Fun DAC and amplifier. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. LME49720 sound is boringand too light. 1-nV/√ Hz noise density with an ultralow distortion of 0. Jun 5, 2023 · Although specifications of OPA1612 (bipolar) indicate they are superior to that of OPA1642 (JFET inputs) in practice OPA1642 performs slightly better. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. ah so much other untested opa's 1678 still on my list ina1620. 5). The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. com SBOS450C –JULY 2009–REVISED AUGUST 2014 5 Pin Configuration and Functions D Package OPA1611, SOIC-8 D Package (Top View) OPA1612, SOIC-8 (Top View) DRG Package OPA1612, SON-8 (Top View) (1) NC denotes no internal connection. Aug 22, 2009 · I talked to a TI/B-B applications engineer today. Hello, I am looking at replacing the old JRC opamp in my phonostage of my amplifier. The photo above is the TI NE5532P. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Last edited: 2023-06-06 6:15 am Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. The NJM4560DX does not appear to be FET type, though I thought a FET type like OPA1642 would suit this circuit? or maybe OPA1612 which isnt FET like the The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. My statements were verified: - OPA1611/1612 are optimized for better distortion than the OPA211 (already pretty good). Mar 27, 2023 · Hypex NCx500 Power Specs (1kHz, THD = 1%): - 700w @ 2ohm (peak) - 700w @ 4ohm (peak) - 380w @ 8ohm (peak) You have a choice of two configurations (both at the same price and both sound identical): - Onboard stock Hypex buffer stage, which renders our Low/Med/High toggle switch inactive (gain The OPA1641, OPA1642, and OPA1644 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. ••• Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). May 15, 2022 · Now i tested opa1612 with lme49720 and 1612 is better in my opinion. For some reason I refuse to use it as often as I can though, being CMOS. not going into high frequency oscillation) are different and just swapping ICs may cause problems -- you might need to add some compensation for the OPA1678, depending on Apr 27, 2023 · OPA1612 with ultra-low noise and low distortion 1KHz 0. TL072 is not in the same league, I replaced those decades ago already for better performing types. Oct 2, 2021 · I also think that op-amp rolling is rather fun, even if the only op I found to be sounding clearly better than ne5532, was the lm4562 ( the others I tried: opa1642 opa2134 and opa1612 ) Last edited: Oct 2, 2021 1 10 100 1000 1 10 100 1k 10k 100k 1M 10M 9ROWDJH1RLVH6SHFWUDO'HQVLW\ Q9 ¥+] Frequency (Hz) C006 Product Folder Sample & Buy Technical Documents Tools & Software Dec 28, 2017 · There are some things to watch out for when swapping op amps. Jul 5, 2006 · Hi All, Please advise what would be the best bet for a modern replacement of the NJM353 in my 12-15 years old vintage 4X60W Class A Zero Feedback car amplifier? Tried dual OPA627AU on adaptor but the sound is of reduced volume, of loss details and PCB is warmer than before and the noob in me did not realized the input current of 7mA X 2 or 14mA for the each of 4 dual adaptor as compared to 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 Dec 10, 2015 · A fair question! And although I was the product definer and systems lead for this part, I don't get 100% control over the marketing folks But, I can honestly say that when we started working on this part about a year ago, I was very adamant that I didn't want to create a part with excellent specs but terrible sound quality in the real world. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. ••• Jun 19, 2021 · The op-amp I am using here is the most popular types and they having many good review from DIY community. Feb 11, 2021 · As Mark pointed out OPA1612 is a terrific sounding opamp and if you have problems with its bold mighty extreme low bass performance or with the extreme high resolution and unfiltered highs you can use other new opamps with a more gentle sound like OPA2209, OPA2189 etc. This isn't really useful information for this review, but it did make my comparison process a little easier. It has the most stable input capacitance vs. tnt-audio. Pin can be left floating or connected to any voltage between (V–) and (V+). ) The only notable difference in sound is that the HA-250 has a lower noise floor. ti. It ensures a very low noise density of 1. Feb 22, 2016 · “比如30多年前的opa2604、2134，到后来的opa627，以及近几年的opa1612，都是口碑非常好的产品。 ”德州仪器高精度运算放大器产品线市场工程师周颖表示，“去年中国市场上很多主打Hi-Fi的智能手机、智能平板、播放器、智能耳放都采用了OPA1612方案。 System: Equitech 1. Facebook Reddit Pinterest Tumblr WhatsApp Mar 22, 2023 · OPA1612到了后，自己先试了试OPA1612+JRC5532，感觉和OPA1642+JRC5532没什么区别，我试了好些碟，也试不出来什么区别；三频几乎没有差别，打分还是一样的，90分水平； OPA1612+OPA1612，这个组合的高频给我非常好的感受，比OPA1642+JRC5532明显更细腻一点，高频的线条感更好 Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. 000015% at 1kHz. The OPA1642 has the JFET input stage- thus reducing the input current noise- reduced common mode input distortion and sensitivity to source impedances, and lower standing current going for OPA2134 is probably a good choice in general. The amplifier is powered by 2 x 9V batteries for low noise operation. 4" plug). It's best use as an alternative to opa1612 when noise is not a big concern. Attachments OPA1611, OPA1612 www. Sep 11, 2021 · The picture shows my op-amp rolling, I have tried the ne5532, opa1612, lm4562 and opa1642. Mar 9, 2023 · SMSL SU-10 vs M500 MKIII vs DO300 21 vs 9 vs 11 dual op-amps OPA1612 (accoring to the spec from smsl-audio) What is the Op-amps doing in that? Facebook Reddit Mar 22, 2022 · OPA1612 (soic on dil adapter board), bi-polar from input to output, again a very good opamp, which to me "sounds more balanced" top to bottom than the LME, it is just as dynamic, but just a little less obvious in the bass leading edge because the mid-range seems a little more fleshed out rich and full bodied, highs are just as good as the LME. 000015% (original has OPA1642) Just spreading the news, I have no affiliation with the link or Eversolo. com We would like to show you a description here but the site won’t allow us. Jun 7, 2016 · (The TEAC uses an OPA1642 opamp, for whatever that's worth. Dear TI E2E support, Hi there, Our team made a prototype of a phono-stage amplifier (pic. They're bulky, expensive transportable units. Jan 17, 2011 · 1 Review written 🎧 20 years. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, •••. Composite amplifier is one of the best application with opa1656. I too find that the OPA1612 and OPA1642 are fantastic upgrade/replacements in a whole lot of professional and consumer audio gear out there equipped with comparatively outdated opamps. For example the OPA1678 has a much higher gain-bandwidth product than TL072 and different output impedance, which means that the criteria for it being stable (i. Mar 17, 2019 · Low output current would mean the transimpedance gain of the I/V circuit will be high, and the input current noise of the op amp will be a significant contributor. e. ••• May 23, 2018 · The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. For being itself, opa1642/opa2140 is pretty good. I must test muses now. I'm with Jim here. This is one of my favorite op-amp for ages. 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. Mar 17, 2019 · The OPA1641 would be slightly better. AD8599, OPA1642, AD8512, OPA1612, etc. The OPA1642 is also theoretically the best choice for the unity and x2 stages in the output buffer, although the LME49720 is a very close second. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. : ) Comparison to my tube amps is very unfair. 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! Jul 25, 2016 · MASH covers a few different number of bits in the output - the DAC output could just be switches if 802 is LM833, its bjt input isn't suited to the circuit filter/feedback impedances - really should be a jfet type OPA1642 looks good on paper, better when you read the chatter from TI engineer on the project I would worry that there simply isn't Oct 10, 2020 · I have also tried opa1642, 1612 and 2134, but they are all slightly inferior to lm4562 soundwise in Aiyima a04. But $40-57 each. Every amp. I don't care about listening tests or something else, just want to use the technical better one in my amp. JFET inputs let you work with a larger range of input resistors. Jim Williams Audio Upgrades Share Reply Quote. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. 000 (DIY!) tube preamp with tube Mar 17, 2019 · CMRR is not a big issue. Depending on the actual application circuit, there are alternatives with better noise performance. Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. This is the best technical specification and the most expensive among them. These sound great and outshine many of the other modern high performance audio opamps out there today. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. Jul 4, 2021 · OPA1642 on adapter, make sure to check decoupling and make sure to check for oscillation. There's no shortage of candidates here, and the new OPA1656 is a great option, but you could also check out: OPA1642, OPA1678, OPA827, and the newer OPA828, or also OPA2810. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. OPA1611, OPA1612 www. My favorites at the moment opa1642 and this one opa1656. Find parameters, ordering and quality information Apr 25, 2024 · Part Number: OPA1642 Other Parts Discussed in Thread: TLE2426, , OPA1656, JFE150, JFE2140, OPA1612, LME49720, OPA891. common mode voltage that I've measured on any op amp. The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. Nov 9, 2012 · Muses02 vs BB OPA2134 in Topping A30 (single-ended to differential buffer) Rig includes: Topping A30 and D30, HD600s (vintage 2017) with HD650 (genuine Sennheiser replacement part) 3m cable (1. 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. Sound is more "color", and "massive". Extensive listening test showed me that the best sounding result was with the lm4562. Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. We would like to show you a description here but the site won’t allow us. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. Strange but found too many times to ignore it. OPA1656 (CMOS) on an adapter is a winner too. So, it is a different design and chip. OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. 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 Part Number: OPA1642 Other Parts Discussed in Thread: OPA1612, , OPA1652, OPA1688, OPA1662, OPA1602. TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. BTW, last year I crippled my €4. If a FET-input amplifier is required for low bias current (such as for a phono preamp), you might consider the OPA1642 or OPA1678. These were wired to use USB input to the Swing from my laptop, the DAC (fixed voltage) RCA outputs of the Swing to the RCA inputs on the Fun, and the Hifiman He560, Sennheiser 800, and Campfire Cascade (with Cloth pads) used for all listening sessions. At the risk of immediately coming across as exaggerated and/or hyped -- the "battle" was simply an epic slaughter! Dec 11, 2019 · It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files 为增加其声音的胆味和醇厚绵密的味道，输出端还特别增加了一枚ti新构架的场效应jfet音频专用的发烧运放opa1642，该运放的信噪比极高，毫无底噪！一点都没有！非常的好！喜欢夜里听的人必须的！ The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. OPA1656 sounded worst, Muses 8920 sounded best. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. 1) base on the circuit in OPA1642's datasheet. 1 nV/√Hz noise density with an ultra-low distortion of 0. Both fet based opamps sounds a little bit more solid in the bass (not quantity but the imaging and the texture). Previously I am using BB OPA1642. NE5532 is a very good amplifier especially for the price ($0. 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. Feb 11, 2021 · I agree about the OPA1612 for gain. Opa1656 has good phase response at high frequency. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. But I really like the FET's in that position. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. I would tend to use the OPA1642 for buffering, filtering and EQ. 000015% at 1 kHz. Aug 3, 2019 · The OPA1642 is the best choice that you can make other than incredibly expensive ones that provide very, very, slightly less noise and higher distortion. Transients are stronger, both rimshots of snare drum and big-band trumpets. Two identical gain 11 amplifiers were tested. May 3, 2022 · Its not immediately clear what would upgrade NJM4580 which is already quite low noise. - high levels of DC precision are generally not required by audio customers (audio equipment makers).
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