Opa1656 dip8 review. It's a shame that because of modern miniaturization of pbc and surface mounted devices as a trend, it does not come in DIP8 package. The amp is fully balanced and May 23, 2018 · The opa1656 this time is smoother than the opa2156 in previous test and opa1612 has better bass than previous. Not only was that affordable, I could trust that the op-amps would be legitimate. Mar 24, 2021 · Hi amigos, New Purifi Buffer in V2. Log in or create an account . This chip doesn't fit in the common DIP8 packaging, but thankfully @Audiophonics sells a pre-modified OPA1656 for 5 €. Try for yourself. 1 with the following OP amps : OPA1612 OPA627 OPA1656 Burson Audio V5I genuine Apr 5, 2024 · The OPA1656 is a Burr-BrownTM operational amplifier (op amp) designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Oct 17, 2023 · OPA1656 Dual OPA DIP8 (Unit) - Audiophonics This OPA1656 OPA from Texas Instrument offers very good performances for audio use. I rectified that by first inserting a DIP8 adapter socket and the SS2590 into that. 00- Jun 20, 2023 · But no matter if they are original or not. I am swapping out the operational amplifier OPA1678 for 2 OPA1662 Burr Brown OPA1656 opamps . Two identical gain 11 amplifiers were tested. I would recommend the V5i if you like your amplifier/DAC but want to make it sound cleaner, clearer: and the change V5i brings out is incredible. The third time I added in njm4585 very cheap but pretty good opamp in the comparison. I had no oscillations or instability with the OPA1656. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 5A. So : you can "custom" your sound with your favorite DIP OP amps. 9nV/rtHz broadband voltage noise. Opa827 was my favorite but expensive and doesn't have much current. 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. Mar 17, 2019 · The OPA1656 pre-mounted to a DIP8 adapter for $14 is here: SOIC-8 to 8-pin DIP Adapter - 970601 - Cimarron Technology And the SOIC-8 by itself for $2. There are many dual opamps to choose from. 1 with great caps and some mod (OPA1656 / inductors update) sounds really good too. 000015% at 1kHz. I had also read a lot of reviews calling out that the discrete opamps have more noise due to the design than tightly packed single die IC opamps. Jul 4, 2009 · Nice advantage of V5i over all other discrete op-amps: It fits in about any DIP8 socket, regardless the case size. I used 10 or 12 in my preamp rolling project - never a problem with Dual OPA DIP8 (Unit) The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. 000015% at 1 kHz. Feb 2, 2019 · Last version will come with DIP8 socket so you can update yourself the OP amps. OPA1656 rozszerzył bas i otworzył scenę dźwiękową. 5V to 36V) on 3. This gave me a chance to OPA1656: 3Mb / 42P [Old version datasheet] OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers REVISED SEPTEMBER 2022: Nov 28, 2023 · Amir's review from June, 2022 is definitely the J2 / AKM 4493 / Ti OPA1656/TI1612 version. 00-New ClassD Ultimate MKII DUAL Discrete OpAmp DIP8 VTV Amplifier $ 71. 53 MHz gain bandwidth product, 24V/us slew rate. I tried to turn the volume @Max, it remains ultra silent, good point here. Jun 2, 2019 · For each channel, two SS2590 op-amps are required, and they should be used with a DIP8 to dual 990 socket adapter from Sparkos. The Audiophonics OPA1612 operational amplifier is based on an authentic Texas Instruments 1612 chip. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety TWO Texas Instruments (Burr-Brown) OPA1656 Dual Discrete DIP8 OpAmp. Mar 17, 2019 · blue spectrum - 2 x 8 parallel OPA1642 , green spectrum - 2 x 2 parallel OPA1642 orange spectrum - 2 x 8 parallel OPA1656 , brown spectrum - 2 x 2 parallel OPA1656 Based on these measurements I expect the noise of a single OPA1656 to be 39nV/rtHz at 10Hz. Pro To Dual Op Amp Adapter Convert your SS2590 pro discrete op amp to dual DIP8 applications with our adapter. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. Other candidates are muses8920 which is almost as powerful and lower distortion. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. This OPA offers excellent performance for audio applications. (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. >100mA output current. Jan 15, 2020 · Let's test this out! AnalogSteph had recommended the OPA1656. More objectively, and I'm going to link to a quote from Amir here discrete op amps review page 1. This is a great reference opamp to aid in selecting discrete upgrades. Low distortion Hz at 10 kHz. Opa1656 is pretty good with 100ma. I did build that and the slightly modified schemo is attached. I don't care about listening tests or something else, just want to use the technical better one in my amp. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. 5 V to 36 V) on 3. View attachment 106010 I will measure the A07 output power and spectrum cleanliness with this power supply. This OPA1656 OPA from Texas Instrument offers very good performances for audio use. I really wonder how Drmordor module will perform with OPA1656 ) But certainly very well ! I do love those OP amps and I am using it for months on my . 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. But I experience some stability issue and over heating. This super BETA Bipolar OP amps is really fast with a very low DC offset. Note : Date : 2024-08-11. 1F X7R on the backside with the shortest possible lead length. The idea of this group buy is to propose a full pack @fair price for a brand new Purifi Buffer : SPEC : - THD: 0,00026% @ Vin 2,5 V RMS - GAIN: 14 dB - BANDWIDTH: 2 Hz - 150 kHz - SLEW RATE: 24 V/uS - CMRR: > 100 dB @ 60 Hz - DYNAMIC RANGE: 127 dB - INPUT IMPEDANCE: 47 Kohm 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. The amplifier sounds great and very loud with the volume @ 30%. Sep 14, 2021 · I have an OPA1656 story that may be interesting especially to whomever wants to build the RIAA preamp example in the apps section of the data sheet. In order to satisfy this itch, I ordered the Sparkos dual discrete opamps from the manufacurer site Order today, ships today. The cost is about $30 in a local store. ••• General Description: 994Enh-Ticha Dual Discrete Operational Amplifier DIP8 The 994Enh-Ticha is a dual high performance discrete operational amplifier designed for professional audio applications and areas where ultra-low noise, low distortion and highly linear uncolored performance is required. This OPA offers excellent performance for audio applications. May 2, 2020 · The OPA2210 definitely worth trying! as good of the OPA1656 in term of Soundstage but with the best of the OPA1692. Soic8 is the smd equivalent. Jan 21, 2022 · The only change I have made is to use the OPA1656 following daniboun's recommendation (thank you daniboun ). Only registered users can post a review. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Jul 4, 2009 · Dip8 is footprint of most trough hole opamps. Jun 20, 2023 · You need to understand that technology advances every day. Nov 28, 2023 · Since then, I've seen a few install a dual SS2590 with DIP8 adapter on the single ended RCA output, which is easy to do. 1 is now ready with OPA1656 in DIP8 socket. Używam głośników Triangle i różnych dobrej jakości źródeł, zarówno cyfrowych, jak i winylowych. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety May 2, 2020 · New Purifi Buffer in V2. 25V to ±18V or (4. com with a TI insider involved. The idea of this group buy is to propose a full pack @fair price for a brand new Purifi Buffer : SPEC : - THD: 0,00026% @ Vin 2,5 V RMS - GAIN: 14 dB - BANDWIDTH: 2 Hz - 150 kHz - SLEW RATE: 24 V/uS - CMRR Oct 6, 2023 · I'm thinking of using a DIP8/SOIC8 adapter to try other sounds. OPA1656ID – Audio Amplifier 2 Circuit Rail-to-Rail 8-SOIC from Texas Instruments. Adaptateur AOP DIP8 8 Pins sur Circuit CMS SOIC8 à Souder (Unité) - Audiophonics Cet adaptateur plaqué Or permet le branchement de tout ampli opérationnel audio DIP-8 sur circuit imprimé avec emplacement pour SOIC-8. 6 fa/rtHz broadband current noise. Myślę, że rodzaj OPA ma znaczenie. Again, from known dealers or vendor like Digikey or Mouser, not Ebay or Aliexpress Jan 9, 2020 · OP amps : Remove NES5532 Op amps > Install Genuine OPA1656 DIP8 socket (mouser) Will let you know more when the amplifier is going to be fully assembled ) Stock version A small 110*70*35MM TPA3255 module with : SAGAMI 7W14A inductors Full Nichicon caps, as below : Nichicon 2200UF/63V VZ serie power caps Nichicon FW serie Buffer caps (Audio Grade) Mar 17, 2019 · The OPA1641 would be slightly better. Great alternative to TPA325X / Hypex Ncore (this is subjective ) is the double Mono Merus amp. PAIR OPA1656 Opamp in DIP8 adapter for VTV Amplifier Custom Buffer $ 48. With regard to the decouplers, because I just put them in and left them there I really should take them out, and then put them back to really assess. So maybe they shouldn't be used on a dip8 converter. -131 dB THD+N at 1kHz, 600 ohm load, 3. With a wide supply voltage range and DIP8 mounting, it can replace many other models. Apr 10, 2019 · TI recently introduced two devices worth looking into, updated BUF634A and OPA1656, both available as prototypes directly from TI. Given these characteristics, there is a solid use case for my bedtime music sound profile (which can take quite few hours of listening each night)! 1656 is in my newly designated relaxation & sleeping tube preamp which I can just swap in anytime. This feature accommodates the power supply constraints of many types of audio products. I am really familiar with OPA1656 but it was the first time I heard the MC33272 when I got the DrMordor module. Every amp. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. It ensures a very low noise density of 1. Seeing pictures in reviews of your amp, it is dip8, and they supply 5532 opamp in dip8. It has the most stable input capacitance vs. It is sooo tooo solid The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. We would like to show you a description here but the site won’t allow us. Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! Mar 25, 2017 · I had read up a lot of blogs about discrete opamps, and I wanted to see what the fuss was about. It provides a very low noise density of 1. Feb 11, 2021 · Dont make me laugh, if you can't hear the difference 5532 vs OPA1612 than you should not be very concerned about SQ (in your case). Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. The owner then ordered a set of Sparkos Pro SS2590 discrete opamps. 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, Dec 9, 2019 · Basically, doesn't matters what opamp I stick into the DIP8 socket, the background noise is still lower then LME49860. That unit came with the Sonic Imagery's 990ENH discrete operational amplifier ("opamp") in the buffer stage (pre-amplifier). Jan 2, 2022 · Your experience is very similar to mine with the op amps, only in my case I had a pair of OPA1656 vs your Muses 8820. The NE5532 was for a long time the best bang for your buck. I have been astonished really just by this one change! It has been a 'slow burner' this thread since daniboun first posted about it the BRZ3255's potential Apr 21, 2019 · Sound: For purposes of these tests, I started out with a Burson Swing and Fun DAC and amplifier. Just getting a better (cheap) opamp worth it. This improved the fit in my case, YMMV. OPA1656 Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. The OPA1656 is the new king. Jul 4, 2009 · on first sight i would say the opa627 has these attributes compared to the opa1656 - sounds somewhat thinner, voices sound more lean but at the same time a bit more sibilant - you could say its a bit more analog sounding - not so bass heavy as the opa1656 (the 1656 really shines in bass regions, specially infrasonics are much more "audible") Feb 13, 2016 · Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. PRODUCTION DATA. In particular, it has very good dynamics and a low level of harmonic distortion. But not anymore. Jan 7, 2021 · I have ordered Mean Well RS-100-24 SMPS power supply, 24V/4. Mar 17, 2019 · OPA1656 rolling I tried in all cases to bypass the rails with a 0. AUDIOPHONICS OPA1656 Dual OPA DIP8 (Unit) - reviews - There is 1 review. Dec 6, 2018 · Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. Dec 9, 2019 · Dla mnie standardowy chip brzmiał ok, niezbyt ostro i całkiem jak Aiyima A08, ale z większą kontrolą. Audiophonics is proud to present its OPA line-up with the OPA1656 based on a authentic Texas Instrument chip. It has a very good dynamic range and a low level of harmonic distortion. com) I have tested the The AIYIMA Tilear Rev 2. This OPA provides very good electrical and audio performance. 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 OPA1656 OPA from Texas Instrument offers very good performances for audio use. 00-PAIR Sparkos SS2590 Pro Single Discrete OpAmp $ 119. Dec 11, 2019 · The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Jan 21, 2022 · Subjectively, the OPA1656 for me is both more detailed and expansive than the stock chip (impressively so), but with a quality that ever so slightly gives a sense of "ease". If you can open it and send picture directly here, i can tell for certain. There is basically no difference between njm4585 opa1612 and opa1656. OPA1656 Dual OPA DIP8 (Unit) OPA1656 Dual OPA DIP8 (Unit) - reviews Très bien mais Utilisé en remplacement des NE5532 dans un Fosi BT20a Pro qui sonnait trop sec, clinique et terme. Test done with only one channel swapped, so it's quite easy to compare this way (also swapped the opamp for the other channel, background noise moved into the other ear). 1-nV/√Hz as well as an extremely low distortion level of 0. Current noise: 6 fA/ Hz at 1 kHz. Apr 26, 2020 · I am understanding that the array you mean is relating to the three chips in the DA10 - so looking at your tables you have 2 AD797(x2) in the I/V stage with 1 OPA1656 as the Buffer, together making up the "buffering output high quality DAC", so AD797(x2)x2 -> OPA1656 ? Audiophonics is proud to present its OPA line-up with the OPA1656 based on a authentic Texas Instrument chip. Pricing and Availability on millions of electronic components from Digi-Key Electronics. The only caveat I might offer is I found the fit on my board socket was not snug enough for my liking. 1-nV/√ Hz noise density with an ultralow distortion of 0. May 2, 2020 · Hi amigos, I propose this group Buy for a brand new Purifi Amplifier with a Custom Buffer using OPA1656 DIP8. 5Vrms signal, 80-kHz measurement bandwidth. LME47920, LM4562, OPA2134, OPA2132 DIP8 opamps, or SOIC8 on adapters like OPA1656, OPA1678. 9mA of supply current. 1-nV/√Hz and an extremely low distortion level of 0. New BUF634A has higher slew rate, wider BW and decreased quiescent current in wide-BW mode, and is cheaper than original 634 Oct 12, 2020 · The AIYIMA Tilear Rev 2. This Purifi is made with good quality components and H2000 Case, made in Italy. Compatible with the VTV Amplifier Custom input buffers (tube or solid state), but may be used in other amplifiers as well. I used Fast Chip Kit for Quik SMD Removal with a Low Temperatur Dec 28, 2018 · Opa1622 is supposedly a better choice. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. (See diyaudio. The FET-input architecture achieves a low 2. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety 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. Les Oracle 02 apportent de l'air et une image sonore plus large et profonde, ça respire et la musique n'est plus coincée dans les HP. 99 OPA1656IDR Texas Instruments - Cimarron Technology I've purchased several flavors of double singles and duals mounted to DIP8 adapters and they do beautiful work. common mode voltage that I've measured on any op amp. The official release of the J2S with AKM 4499EX was not until Fall, 2023, and has since been expanded to include multiple op amp options. 25 V to ±18 V (4. enynzgp irhy eblme ggr twm wzg rfk gts hdmtgno itfzh