Opa1656 vs opa1612 sound quality

Opa1656 vs opa1612 sound quality. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Part Number: OPA1656 Other Parts Discussed in Thread: OPA2134, OPA2604 The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. I also have both the OPA1642 (FET-input) and the OPA1612 (bipolar input) in stock and I think these would be interesting candidates as well. Part #: OPA1656. The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. ->Software Crossover EKIO->Multi-Channel OKTO DAC8PRO->multiple amplifiers->direct to SP drivers of fully renovated YAMAHA NS-1000 (not NS-1000M!)+FOSTEX T925A (L&R)+YAMAHA YST-SW1000 (L&R): ACCUPHASE E-460, YAMAHA A-S3000, A-S301, SONY TA-A1ES, ONKYO DAC-1000, OPPO SONICA DAC, KORG DS-DAC-10 , IEC 60268 Jun 5, 2023 · After working with some OPA1612 on my recent Topping PA5 D01 Module replacement project (at ASR), a friend sent me a few OPA1612 opamps he ordered when they were in stock since i couldnt get them anywhere. com Dec 30, 2023 · I don't have the books you mentioned but I do have a book called Small Signal Audio Design by Douglas Self. OPA1612 is open sounding but is a little warmer possibly because of the lower midrange roundness. 1-nV/√Hz noise density with an ultralow distortion of • Ultralow Distortion: 0. 5 metre cable at 33. The OPA1611 and OPA1612 Sep 6, 2023 · The whole point in following this passion is to experience difference in sound, atleast to me If you are really interested in checking it out, you are whole heartedly welcome to try swapping em. Sep 25, 2019 · Texas Instruments OPA165x Ultra-Low-Noise Audio Operational Amplifiers are designed specifically for audio and industrial applications where maintaining signal fidelity is crucial. The OPA1611 and OPA1612 Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). 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 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). Jul 4, 2009 · The Opa1652 and Opa1656 sound fantastic in those zishans I had both as buffers and they really brought out the best in driving my favorite op amps. Opa1656 has good phase response at high frequency. Replacing the part with a more modern device could risk messing it up and ruining the performance so lose, lose. Page: 23 Pages. There are many reviews of audio hardware and expert members to help answer your questions. 7 pA/rthz) will multiply with the pickup resistance (varies quite a bit, say typical is 10 kOhm) to become the Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). I used though the better TIs in output stages of middle class DACs as these benefitted from a more round /warm presentation with less details, as that masked their weaknesses and in fact Mar 17, 2019 · As compared with the OPA1656 which is 24V/us. A comprehensive comparison between OPA1612 and OPA2156 (and other opamps) could be read here: https://quantasylum. It made a difference in sound and I'm not gonna deny that. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Apr 21, 2019 · vs Burson V6 Classic. OPA1656 Mar 14, 2010 · Overall balance with new amp is a little darker but with better transients. alongside with some aliexpress el`cheapos for like 2 buck a piece instead of 7. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. LME49720 vs OPA1612 vs Apr 5, 2021 · The prototype here is made with an OPA1656 dual opamp and the initial impression is that I was on to something with this idea, because it does sound very good. The OPA1656 has very good THD + N. 000035% (-129 dB) at 20 kHz and improves audio signal fidelity across the full audio bandwidth. The FET-input architecture achieves a low 2. File Size: 611Kbytes. 3V inside of each supply. Composite amplifier is one of the best application with opa1656. com with a TI insider involved. 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. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Jul 4, 2021 · This doesn't look like a high quality pcb and it would be easy to lift traces. 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. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. The output swing for Aol should be considered as it is different between the two devices. The V6 classic was a bit slower on the attack than the SS360x which gave it a bit smoothed over sound compared to the SS360x. Nov 30, 2021 · Stability should be considered especially with the wider bandwidth of the OPA1656. What else, maybe cleaner more resolved sound at congested parts. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. 3 MHz. 75V peak corresponds to) at 20kHz. Standard opamp for that has pretty much become OPA1612. 1 nV/√Hz at 1 kHz 1. Dec 28, 2018 · Chiba Prefecture, Japan: Windows 11 Pro 64 bit Audio Dedicated DIY Silent PCs, JRIver, etc. 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. It could sound pretty good, but one could get sound just as good from IC opamp designs. OPA1656 sounded worst, Muses 8920 sounded best. 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. Share. Also audio opamps may have enough input offset voltage to saturate the output for such high gains - if the input offset is +/-3mV and the gain is 1000, the output offset is +/-3V, or maybe much • Audio Effects Processors • Musical Instruments • A/V Receivers • DVD and Blu-Ray™ Players • Car Audio Systems 3 Description The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. It offers exceptional performance in almost any audio application. 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. 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. TI’s OPA1612 is a SoundPlus™ Audio Operational Amplifier with 1. May 10, 2022 · Many audio opamps have GBW of 10 to 20MHz or so, so at a gain of 1000 the bandwidth will have dropped to 10--20kHz - completely inadequate for audio. The OPA165x Op Amps offer a FET-input architecture that achieves a low 2. 4nV/rtHz both flat. Dec 6, 2018 · Old op-amps such as the LF412 and TL072 are more than good enough for 99% of 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. I'm with Jim here. Jan 27, 2024 · OPA1656 instead of OPA1612 by thuanth » January 27th, 2024, 2:57 pm I'm thinking of building a couple of a24 boards and want to try T. There is no practical audio program material which will have 24dBu (which is what 17. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. Show hidden low quality content Chip Amps. 1nV/√Hz Noise, Low THD and Precision. Classics are a bit warmer while SS360x is a bit brighter presentation. The OPA1652 and OPA1654 op amps offer rail- 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. The recent swap I did was from opa1656 to opa1612 in the v3. 00005% at 1 kHz Jul 3, 2019 · WANTED: Happy members who like to discuss audio and other topics related to our interest. com/blogs/news/opa2156-hifi-in-cmos. The applications that slew rate limiting is important to take into account is using the device in non-audio applications. Mar 17, 2019 · Thank you so much for the hints. Click to expand Well I actually did more extensive measurements in more applications. Thanks in advance. I don't care about listening tests or something else, just want to use the technical better one in my amp. 00005% at 1 kHz. But that does not say anything about the SQ. Details are better on the SS360x while Bass may have had slightly better slam on the Classics. 000015% at 1 kHz. These sound great and outshine many of the other modern high performance audio opamps out there today. 5-nV/√Hz noise density with an ultra-low distortion of 0. Download. Best regards! May 23, 2018 · The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. 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 Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system TI’s OPA1656 is a SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier. OPA1612 is a great amplifier, however, it is bipolar (input type) and when used immediately at the front-end of a guitar input, the input current noise (1. 9nV/√Hz voltage noise density and 6fA/√Hz current noise density. I must test muses now. The do sound nice, quite a gentle fairly balanced clear sound but are a little light on the bass for my taste but they do shine in the vocals especially female and good highs. Overall, don't recommend opamp rolling. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. So I don't think there is a singular correct The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. 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 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. . Hi Ervin, Yes those devices are very popular, unfortunately I don't have any way to know for sure when they are back in stock. Also, a LME49720HA that costs 5 times as much as the PDIP or SMD version should also be interesting in terms of cost calculation. Thread starter SinGun; Start date 2021-09-14 1:05 pm; (OPA1656) and buffer stage (OPA1656 or OPA1612) with the volume pot (TKD The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. i expected them to put some Mar 17, 2019 · Many high-end audio manufacturers still use THT technology and avoid SMD at the sound-relevant points. Aol Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. We would like to show you a description here but the site won’t allow us. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. Years ago the MUSES 01 was $35 in Japan and it was at the time way ahead of it's time. Mar 17, 2019 · The OPA1641 would be slightly better. Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. com In no case did I have too high expectations regarding the sound Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. 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 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? M500 SINAD is higher than DO300 with less op-amps. Today, I still have the same 2020 amplifier and the opa1656 sound much, much better at a fraction of the cost. common mode voltage that I've measured on any op amp. It's best use as an alternative to opa1612 when noise is not a big concern. 9nV/rtHz vs. 00 : Crosstalk - 110dB PSRR - 80dB min, typ 100dB Distortion - 0. I prefer the opa2211 over the opa1612 (same chip but with less better specs). 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. The OPA1611 and OPA1612 This OPA1656 OPA from Texas Instrument offers very good performances for audio use. Craig • 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 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. Reactions: Euphonic_employee , Xulonn , Speedskater and 5 others Mar 17, 2019 · The OPA1641 would be slightly better. CMRR is not a big issue. Find parameters, ordering and quality information Mar 17, 2019 · Again, it's the circuit topology that is the most important to get the best sound out of any op-amp. It has a very good dynamic range and a low level of harmonic distortion. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Together will make a really good composite amplifier, I will try this application at some stage. tnt-audio. One S300iu integrated amplifier | Stereophile. Mar 17, 2019 · OPA1656 is less noisy than the OPA827, 2. Page: 42 Pages. 1 nV/√ Hz at 1 kHz; Ultralow Distortion: 0. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. The Opa1612 is the audio version so they made the specs slightly worse. Jul 4, 2009 · The Opa1656 has a much wider and better soundstage. So far I don't hear any harsh sibilants (very clean) but it is virtue of my speakers. Shameless plug I just highlighted the OPA1656 in my latest application note. Ha ha it's funny because I'm a wide and far reached detailed and accurate fanboy and some people find too many details to be annoying. You really don't want a tl072 dealing with 20mA into such low impedances. ••• More options. The question is rather moot anyway. 000. edit: looking closer at the pics, the I/V resistors are 390R (about half the datasheet values, which makes sense as they // the outputs). Sep 14, 2021 · Resistor Sound Quality Shootout. 8 bucks for a genuine part. Desire to learn and share knowledge of science required. I’d rec them to anyone rocking the z1! Just got the Zishan ak4495 today and just in stock its THE best sound one, I’ve tried in the series! 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. For the case of Mar 17, 2019 · Here is a copy paste of the result for OPA1656 OPA1656 In the past I have to say I prefered widely the AD precise sound vs the softer traditional TI sound. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Sep 27, 2019 · The high bandwidth and high open-loop-gain design of the OPA1656 provides a low distortion of 0. 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. File Size: 3MbKbytes. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. Both fet based opamps sounds a little bit more solid in the bass (not quantity but the imaging and the texture). It has the most stable input capacitance vs. Find parameters, ordering and quality information Dec 9, 2019 · However they measure and perform worse than SOTA audio ICs like lme49720, opa1612, opa1656 etc. Superior Sound Quality; True JFET Input Operational Amplifier With Low Input Bias Current; Low Noise: 5. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Currently rocking the BUF634AU in it. 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. • 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. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. He discusses the Sallen and Key High Pass filter in this book and also the distortion. PRODUCTION DATA. I have my A04 equipped with a pair of Oracle 02 op amps which apparently have been torn down by an Ali express customer and found to be an modded opa1612. May 15, 2022 · LME49720 sound is boringand too light. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. I's latest offering, the OPA1656. ludsr tjgj dtrfsv pngla weuf jlktf ohbm qdowp lrlty dzrd