Opa1656 vs opa1612 reddit audiophile

Opa1656 vs opa1612 reddit audiophile. 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 6, 2018 · Newer so-called audiophile op-amps have a higher bandwidth, than the traditional ones, so are more sensitive to board layout and can easily oscillate. Are there any other Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. 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. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. Hi Team, My customer wants to The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. 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 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. 5Vrms signal, 80-kHz measurement bandwidth. 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. 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. 10 Ohm - 10 kOhm, 2). May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 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! Mar 17, 2019 · I measured again the noise of OPA1656 vs OPA1642. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. Very clean and natural sounding amps as standard, not as full or punchy as my Naim but still impressive for their size. 100 Ohm - 100 kOhm, 3). ah so much other untested opa's 1678 still on my list ina1620. The two stand out winners were OPA1656 and Oracle II 02, the latter being slightly less grainy and with smoother high frequencies. PRODUCTION DATA. 10 kOhm - 10 MOhm Set 1 produces no visual deviation at all. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. 25V to ±18V or (4. 6 fa/rtHz broadband current noise. System: Equitech 1. 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. Download. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. I dug out all my op amps and had a day of “rolling”. 5amp psu and opamps rolled from NE5532(people say they are fake anyways) to OPA1656. I prefer the opa2211 over the opa1612 (same chip but with less better specs). It has the most stable input capacitance vs. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. 5V to 36V) on 3. Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• Dec 10, 2021 · This is my first time doing anything DIY with audio. Home. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. Two schematics in parallel and eight in parallel for both 1656 and 1642 were measured. Setup Style: Room dependent. 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 May 10, 2022 · You don't have to use SA, distortion level obvious on oscilloscope screen. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. 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, Jul 4, 2009 · Marketing 101 by having one of the engineers on the diy threads because it creates interest (especially from spec crazy diy-ers who “need” the lastest and best specs and use “word of mouth” via the audiophile threads to push cost up by popular demand) They do outsource them to official distributors ie Mouser, Digi-Key but you have to buy them in bulk (we’re talking 100s to 1000s) and This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. My OP1656 OpAmp Review. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. The FET-input architecture achieves a low 2. Composite amplifier is one of the best application with opa1656. 4 nV/rthz. . BTW, last year I crippled my €4. 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 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 This OPA1656 OPA from Texas Instrument offers very good performances for audio use. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. In all, I will say the changes are noticeable, but not earth shattering. It has a very good dynamic range and a low level of harmonic distortion. 000 (DIY!) tube preamp with tube 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. My favorites at the moment opa1642 and this one opa1656. Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. But I really like the FET's in that position. NE5532 is a very good amplifier especially for the price ($0. common mode voltage that I've measured on any op amp. 9mA of supply current. This feature accommodates the power supply constraints of many types of audio products. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. 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. I felt a great improvement overall. Mono vs stereo: the LFE or sub channel is only one signal, whether the receiver has more than one output or not. Jul 4, 2009 · The Opa1656 has a much wider and better soundstage. OPA1656 Total Noise of OPA1656 vs OPA1612. It could sound pretty good, but one could get sound just as good from IC opamp designs. Page: 23 Pages. My question is: what would deliver better quality/comfort overall while gaming • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. There are multiple answers for every room. I don't care about listening tests or something else, just want to use the technical better one in my amp. Very impressed by the Fosi ZA3s in mono. My main attraction to them is a higher ripple current in the AC to “ power” the board onward as the opa1612 only requires low quiescent current of 3. i have a a07(tpa3255 also) with 48v 7. 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). 5 metre cable at 33. 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. Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. 2 or 9. Tried putting in opa1612 today. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. Review. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. Page: 42 Pages. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Mar 17, 2019 · The OPA1641 would be slightly better. My first set of separate OpAmps, ushering my foray into the brave new world of OpAmmetryLoL Dry, crisp, analytical and non-intrusive (as compared to the bold NE5532) is what I would describe this opamp as. Apr 10, 2019 · I have interested in low ESR Electrolytic Capacitors to power the Opa1612. This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. Soundstage and placement felt more solid. Standard opamp for that has pretty much become OPA1612. 9 nV/√Hz at 10 kHz Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. If a circuit isn't designed for such a high bandwidth op-amp, then blinding replacing the op-amp with a faster one is asking for trouble. 2 or 7. Now they seems to have changed again to opa1612 in many places - maybe a suggestion to try ? I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM 4562 in both Aiyima a07 and the tpa3251-based Aiyima a04. If it's a 7. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. The schematic, spectrum and results are given below. Vendor We would like to show you a description here but the site won’t allow us. Home Mar 17, 2019 · Also pricing for 1000+ isn't really that expensive for opa1656, opa1602, opa1612. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. Since I am not interested in the V6 Vivid Dual that it comes with. Eric Mo Intellectual 775 points Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656, OPA134. OPA1656 sounded worst, Muses 8920 sounded best. 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, Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. 9nV/rtHz broadband voltage noise. File Size: 3MbKbytes. Feb 11, 2021 · I'll look at it if you know of one amp using OPA1612 sounding audibly better than another amp using cheaper op amp in objective listening comparison. 1 kOhm - 1 MOhm 4). 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. 5 V to 36 V) on 3. Transients are stronger, both rimshots of snare drum and big-band trumpets. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. depends on the amp your using fosi makes a ton , assuming its the TB10D (upgraded version) with a tpa3255 it will just give you headroom that most people wont need. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. 3 MHz. -131 dB THD+N at 1kHz, 600 ohm load, 3. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. Mar 17, 2019 · The OPA1641 would be slightly better. 1, the subwoofer connections are all the same signal. For the case of Part #: OPA1656. 53 MHz gain bandwidth product, 24V/us slew rate. 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. CMRR is not a big issue. OPA1656 - Better imaging / separation of instruments. 4 Calculating Voltage Noise at the Output. It's best use as an alternative to opa1612 when noise is not a big concern. Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. File Size: 611Kbytes. 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. >100mA output current. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational 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. I repeated measurements a few times, using sets of resistors: 1). We focus on education, discussion, and sharing of entry and mid level separate & multi component audio systems. 5). Thread starter forami; Start date 2022-05-15 10:48 am; Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. I was wondering what everyone’s thoughts were on a gaming headset vs an audiophile headset. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Nov 30, 2021 · OPA2134: OPA2134 VS OPA1656. just going by specs it should be better but i dont hear much, its def louder tho so if thats what you want The different players sounded different. Transparency got way better. I am in the market for a new headset and have recently purchased the blue snowball mic, meaning I won’t be using the headset microphone at all. Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. Part #: OPA1656. Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. 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. Does anybody Apr 8, 2021 · So there is a huge possibility of combinations) But I found my happiness as follows: - 5 X OPA1612 (Bi polar OP amps work generally well with DACs) - 2 X OPA1656 (They are CMOS op amps but I really love their signature, very natural with a flat response and great soundstage). Now, we run through a hand calculation to find the total noise of a simplified audio The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. I's latest offering, the OPA1656. I ended up staying with this one. May 15, 2022 · LME49720 vs OPA1612 vs Muses02. 25 V to ±18 V (4. To make it more clear. But that does not say anything about the SQ. It offers exceptional performance in almost any audio application. Opa1656 has good phase response at high frequency. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. The Opa1612 is the audio version so they made the specs slightly worse. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. 0:00 OPA1656(EQ) OPA2211( voltage follower)1:56 OPA2211 OPA1656オペアンプ回路のノイズ特性として、信号源の抵抗が大きい場合は、FET入力タイプが推奨されると Dec 30, 2023 · Part Number: OPA1612 Other Parts Discussed in Thread: OPA1656 I'm up to, to design a 3rd or 4th order 20 Hz high pass filter with ultra low distortion. 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. 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 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. Dual customzied solution will give unmeasurable distortion (possibly -180db). 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. com with a TI insider involved. To check if they will match the previous ones that were made with balanced 10x paralleled op-amps. kadbg szkxy delu fitc gvjs hlsyc lkaet ikqi qhb rrzuk