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Opa1656 vs opa1612 reddit audiophile

  • Opa1656 vs opa1612 reddit audiophile. Composite amplifier is one of the best application with opa1656. Transients are stronger, both rimshots of snare drum and big-band trumpets. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. I don't care about listening tests or something else, just want to use the technical better one in my amp. Download. Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. Home Mar 17, 2019 · Also pricing for 1000+ isn't really that expensive for opa1656, opa1602, opa1612. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. Opa1656 has good phase response at high frequency. 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. 25 V to ±18 V (4. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. 10 kOhm - 10 MOhm Set 1 produces no visual deviation at all. 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. 3 MHz. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. The Opa1612 is the audio version so they made the specs slightly worse. 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). System: Equitech 1. ah so much other untested opa's 1678 still on my list ina1620. 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. The two stand out winners were OPA1656 and Oracle II 02, the latter being slightly less grainy and with smoother high frequencies. 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. 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. Mar 17, 2019 · The OPA1641 would be slightly better. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. Setup Style: Room dependent. 4 nV/rthz. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. I prefer the opa2211 over the opa1612 (same chip but with less better specs). The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. 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. 10 Ohm - 10 kOhm, 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. 9 nV/√Hz at 10 kHz Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. In all, I will say the changes are noticeable, but not earth shattering. Home. Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. 5V to 36V) on 3. 1, the subwoofer connections are all the same signal. 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. My OP1656 OpAmp Review. 9mA of supply current. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. I ended up staying with this one. 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. 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. 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. 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. File Size: 3MbKbytes. 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. 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 was wondering what everyone’s thoughts were on a gaming headset vs an audiophile headset. But that does not say anything about the SQ. 100 Ohm - 100 kOhm, 3). 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. 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. 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. . 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. 5 metre cable at 33. Since I am not interested in the V6 Vivid Dual that it comes with. Dual customzied solution will give unmeasurable distortion (possibly -180db). The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. OPA1656 Total Noise of OPA1656 vs OPA1612. There are multiple answers for every room. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. 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. Are there any other Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. 4 Calculating Voltage Noise at the Output. NE5532 is a very good amplifier especially for the price ($0. Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. -131 dB THD+N at 1kHz, 600 ohm load, 3. Thread starter forami; Start date 2022-05-15 10:48 am; Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. Transparency got way better. Standard opamp for that has pretty much become OPA1612. To make it more clear. Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. OPA1656 - Better imaging / separation of instruments. It has the most stable input capacitance vs. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 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. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. We focus on education, discussion, and sharing of entry and mid level separate & multi component audio systems. Review. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. Part #: OPA1656. Mono vs stereo: the LFE or sub channel is only one signal, whether the receiver has more than one output or not. It offers exceptional performance in almost any audio application. The FET-input architecture achieves a low 2. Eric Mo Intellectual 775 points Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656, OPA134. 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. But I really like the FET's in that position. 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. 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. 9nV/rtHz broadband voltage noise. 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). Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. 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. 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. 1 kOhm - 1 MOhm 4). I felt a great improvement overall. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• Dec 10, 2021 · This is my first time doing anything DIY with audio. Jul 4, 2009 · The Opa1656 has a much wider and better soundstage. com with a TI insider involved. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Very clean and natural sounding amps as standard, not as full or punchy as my Naim but still impressive for their size. CMRR is not a big issue. It's best use as an alternative to opa1612 when noise is not a big concern. >100mA output current. To check if they will match the previous ones that were made with balanced 10x paralleled op-amps. 5amp psu and opamps rolled from NE5532(people say they are fake anyways) to OPA1656. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. Two schematics in parallel and eight in parallel for both 1656 and 1642 were measured. 5). Very impressed by the Fosi ZA3s in mono. 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. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. 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. It has a very good dynamic range and a low level of harmonic distortion. 5Vrms signal, 80-kHz measurement bandwidth. Page: 42 Pages. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. 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. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. 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. 53 MHz gain bandwidth product, 24V/us slew rate. The schematic, spectrum and results are given below. I's latest offering, the OPA1656. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. May 15, 2022 · LME49720 vs OPA1612 vs Muses02. Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. i have a a07(tpa3255 also) with 48v 7. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. I repeated measurements a few times, using sets of resistors: 1). IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. Page: 23 Pages. 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. 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. Tried putting in opa1612 today. Apr 10, 2019 · I have interested in low ESR Electrolytic Capacitors to power the Opa1612. 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. BTW, last year I crippled my €4. If it's a 7. 5 V to 36 V) on 3. Soundstage and placement felt more solid. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. I dug out all my op amps and had a day of “rolling”. PRODUCTION DATA. common mode voltage that I've measured on any op amp. 25V to ±18V or (4. Hi Team, My customer wants to The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. 6 fa/rtHz broadband current noise. 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. For the case of Part #: OPA1656. This feature accommodates the power supply constraints of many types of audio products. 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 favorites at the moment opa1642 and this one opa1656. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. 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. 2 or 9. Vendor We would like to show you a description here but the site won’t allow us. File Size: 611Kbytes. 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. It could sound pretty good, but one could get sound just as good from IC opamp designs. 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. 2 or 7. OPA1656 sounded worst, Muses 8920 sounded best. tzmniy wuyyjqa xchxr ebm ucmv lnx fogk kcg xvsp snrjpus