Opa1612 vs opa1642 sound quality reddit

Opa1612 vs opa1642 sound quality reddit. com/blogs/news/opa2156-hifi-in-cmos. Jul 25, 2016 · Hello all My Marantz and most of my CD players have the LM4562 which I find is great. common mode voltage that I've measured on any op amp. The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. Everything that I wrote here are “IMHO” and as is. It has the most stable input capacitance vs. 004% @20KHz The above parameters are insignificant to the audio level variations imposed by substandard audio recordings, room modes and compromised loudspeaker placements in the average home, some of these variations could Jan 10, 2016 · I talked yesterday to my buddy Greg B. The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. For high source impedance sensors such as a phono cartridge lower current noise is better. tnt-audio. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. 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. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. 1 nV/√Hz noise density with an ultra-low distortion of 0. 00005% at 1 kHz Jul 5, 2006 · Don't mean to be ungrateful but OPA2107 seems to be an easier option now especially still not sure how others rate the sound quality of OPA1642. One good example is XU09 portable headphone amplifier. 1/f corners: OPA1612 ---- 10 Hz OPA1642 ---- 20 Hz OPA1656 ---- 1 kHz OPA2162 ---- 1 kHz It also looks like the OPA1642 and OPA2162 are not happy driving 600 ohms, but the 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. (NOTE: We once owned a recording studio together back in the late 1970's through the early 1980's. 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. 00005%), a low input bias current of 2 pA, and low quiescent current of 1. 1 nV/√Hz at 1 kHz • Ultralow Distortion: 0. 1-nV/√ Hz noise, low THD+N (0. 00005% at 1 kHz OPA1641, OPA1642, OPA1644 SBOS484D –DECEMBER 2009–REVISED APRIL 2016 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. But that does not say anything about the SQ. 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. I also have been an audio enthusiast for quite a while, having tinkered or created several guitar effects/amps. But I really like the FET's in that position. For the case of 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. The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Thanks in advance. ah so much other untested opa's 1678 still on my list ina1620. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Only really better substitution for NJM4580 for example as Pre-Amp can be no less then OPA2228 or even better OPA1612, but for that -3dB less noise (and distortion) over whole audio spectrum you will have to play premium extra. 1-nV/√Hz noise density with an ultralow distortion of • Ultralow Distortion: 0. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. Features include 5. You really don't want a tl072 dealing with 20mA into such low impedances. I like the OPA1642 due to its MUCH reduced bandwidth compared to the 1656 (11MHz vs, 55 Using AUX in, the audio quality is based on the source device's digital to analog converter (DAC). This is based on my experience with the V5i-D. 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. group at Texas Instruments. 8 mA per channel. Both fet based opamps sounds a little bit more solid in the bass (not quantity but the imaging and the texture). Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. It might require more capacitance in the LPF of the I/V stage to keep it happy Vs the others. May 23, 2018 · The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. You can also try OPA1612 as buffer with OPA2822 for the headphone driver. When I do serious listening test between them, just an A - B testing, not back and forth, I found the OPA1642 creates more noise at upper frequency because of those high frequency details. Can anybody please suggest some drop in replacements chips? I do little/no audio electronics so don't know what's good in this regard other than matching up the specs. 1 nV/√Hz at 1 kHz 1. 00005% at 1 kHz 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. 1 nV/√ Hz at 1 kHz; Ultralow Distortion: 0. ) He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. What else, maybe cleaner more resolved sound at congested parts. Feb 17, 2023 · The OPA1622 is a slow device compared to the OPA1612/OPA1656. ••• We would like to show you a description here but the site won’t allow us. 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. Jun 19, 2021 · The OPA1642 has more open at the high frequency, it is more detail but it noticeable sharp and edgy sound. 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 Jul 5, 2006 · Personally I prefer LM4562, OPA2228 and OPA1612 over OPA1642 because of the input noise that makes it sound less pristine. 000015% at 1kHz. Hello, I am looking at replacing the old JRC opamp in my phonostage of my amplifier. Feb 11, 2021 · The next op-amp I am planning to try is the OPA1612 but perhaps the DAC is the limiting factor and perhaps the measurements will look very similar to the OPA2134 even if the OPA1612 is a really good op-amp. OPA2134 is basic hi quality Op-Amp and all rounder Op-Amp with great sound. I must test muses now. Mar 7, 2019 · Sometime I use OPA1612, OPA1642 and OPA1622. Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. 1-nV/√Hz as well as an extremely low distortion level of 0. Superior Sound Quality; True JFET Input Operational Amplifier With Low Input Bias Current; Low Noise: 5. 00005% at 1 kHz 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 17, 2019 · Hi everyone - wanted to take the opportunity on this thread to introduce myself, I am the engineer that is assuming John's old role as Audio systems engineer in the precision op. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Regards, Richard Last edited: 2010-01-18 4:37 pm Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). edit: looking closer at the pics, the I/V resistors are 390R (about half the datasheet values, which makes sense as they // the outputs). 00005% at 1 kHz The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. My favorites at the moment opa1642 and this one opa1656. 000015% at 1 kHz. 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. LME49720 sound is boringand too light. 5mm jacks are so desired over USB-C and perceived as better in sound/audio quality? Archived post. The OPA1611 and OPA1612 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. For example with the Sony Xm3's, Sony's focus for the earbuds IS sound quality, to sound better than the competitors, but they lack focus on every other aspect like Call Quality, and bluetooth range etc. Mar 17, 2019 · The OPA1641 would be slightly better. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. Before any modifications I use shematics to see what i need to choose between these four Op-Amps. Aside from the inconvenience of getting dongles and the various compatibility issues, what is the reason why 3. Find parameters, ordering and quality information Feb 11, 2021 · I think the problem I'm seeing with the OPA2156, and to a lesser extent the OPA1656 is that the 1/f knee for the noise is much higher than for the OPA1612 and OPA1642. The current noise paired with high source impedance translates into additional voltage noise on the input and this gets amplified by the gain in the design. May 3, 2022 · I've seen people use OPA1642/1644 a replacements for the NJM4580s and TL074s on these amps. 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). And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. OPAs 1642 and 1656 MUCH MUCH better. 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. May 15, 2022 · Now i tested opa1612 with lme49720 and 1612 is better in my opinion. This feature, in combination 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. . r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. I got free shipping with Element14 till 29th of this month Jun 5, 2023 · Although specifications of OPA1612 (bipolar) indicate they are superior to that of OPA1642 (JFET inputs) in practice OPA1642 performs slightly better. I can easily compair them , one with NE5532 and the other with LM 4562. This combination will sound slightly more clinical than the OPA2228/OPA2822 combination 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. 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. 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 Jun 7, 2016 · Sound Quality Disclaimer: 1. Sound is more "color", and "massive". This is a straight-to-the-point review, so don’t expect a long, detailed review on the sound quality. But, this is only If I have to modify something that comes with very old OPAmps. May 19, 2004 · If you're looking for an opamp substitution, I'd try OPA1642 to replace OPA2604. com Apr 25, 2024 · The OPA1642 has much lower current noise and better 1/f noise than the OPA1656. It appears that the The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. TI’s OPA1662 is a Dual SoundPlus™ low noise (3. These three Op-Amps sounds great. The higher current drive of the OPA2822 would be beneficial. I personally decided a few years back, that it was time for me to get rid of all ICs and sound coupling caps in my signal chain. who builds large PA speaker systems. Strange but found too many times to ignore it. com In no case did I have too high expectations regarding the sound The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Feb 4, 2014 · Stunning. If your phone, MP3 player, computer, etc (whatever your audio source is) has a good DAC then it might be good to go this route since the source device will decode the digital signal into an analog signal and send the analog signal out to your Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Last edited: 2023-06-06 6:15 am Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136 I use these amplifiers for pro audio. At this point noise and ultra low noise supplies might be the last area I should put more effort into for this interface. It ensures a very low noise density of 1. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. Mar 17, 2019 · It's not always systematic, but in this case: OPA: Op Amp (or grandpa in German ) 16: Audio 5: CMOS Process technology (OPA1652 is CMOS, so I figured I would put my CMOS audio developments here) 6: Next numbers up after the OPA1652/54 family, that leaves OPA1655/56/57 for single/dual/quad of the new device In the case of precision amplifiers Feb 4, 2014 · Ti and others do have interest to make them at the same level as its primary production line of OPA class IC-s. 00 : Crosstalk - 110dB PSRR - 80dB min, typ 100dB Distortion - 0. OPA1612 is open sounding but is a little warmer possibly because of the lower midrange roundness. One S300iu integrated amplifier | Stereophile. amp. The OPA1642 is “one step down” but still very highly rated, and it is JFET-input which should give a low enough DC-offset to be used directly in this kind of application. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. Also the OPA1612 does have the highest quiescent over the other opamps we're talking about it will be the hottest. These days the likes of OPA1642 / OPA1612 are routinely used, so I leave those alone. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. 1-nV/√ Hz noise density with an ultralow distortion of 0. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. Best regards! A comprehensive comparison between OPA1612 and OPA2156 (and other opamps) could be read here: https://quantasylum. I love details clarity, soundstage - listen to rock classical and vocals. 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. 3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp. It measures better to, with LM4562, but the difference is much smaller than the sound differences. So far I don't hear any harsh sibilants (very clean) but it is virtue of my speakers. I also refurbish large format recording consoles. I did not get paid for saying something good or bad. 000. May 6, 2022 · Lets take a look at the NE5532 op-amp, used in audio products everywhere since 1979 and it costs about a $1. 2. Just check the rails aren't over +/-18V. The OPA1611 and OPA1612 Certain companies focus more on one aspect than others. OPA1641, OPA1642, OPA1644 SBOS484D –DECEMBER 2009–REVISED APRIL 2016 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. Jul 4, 2021 · This doesn't look like a high quality pcb and it would be easy to lift traces. 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 Mar 14, 2010 · Overall balance with new amp is a little darker but with better transients. OPA1656 sounded worst, Muses 8920 sounded best. I have a Technics MASH cd player with the SMDs type of opamps needed. I don't care about listening tests or something else, just want to use the technical better one in my amp. however I cannot source an OPA164x at the moment, seems to be some kind of shortage. Currently, I require opamps in the DIP package. Part Number: OPA1642 Other Parts Discussed in Thread: OPA1612, , OPA1652, OPA1688, OPA1662, OPA1602. fit einzilz isvrip rzaky fwuyh tbollyrx jssr gjbbjdb iugrmzn mpwpwa