Opa1656 review forum. At this time I'm using OPA1602 but want to experiment with something else like OPA1652 or OPA1656. ” To hear Bruno's discussion on OPA1656 scroll forward to 33. Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. Oct 17, 2023 · Like a number of forum members, I have been anxiously awaiting the review of this 3eaudio amp. 5Vrms signal, 80-kHz measurement bandwidth. MA12070 chip only accepts differential input so the OPA1656 makes an extra 'signal. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety 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. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. Question 1: yes, positive L and positive R are the right terminals for mono. 25V to ±18V or (4. 9mA of supply current. Jul 5, 2019 · VS AIYIMA A04 (black PCB Tilear 2. ' It's a good opamp. I don't care about listening tests or something else, just want to use the technical better one in my amp. A large and nicely visible white 7-segment Mar 21, 2023 · Since the OPA1656 GBW is much larger, this is the reason we suspect the issue is possibly due to stability. So we stuck with the OPA1656 (it actually had slightly better noise measurements over the 1612 once put into the full design). I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. Since I am not interested in the V6 Vivid Dual that it comes with. Several reference are used on forum. I use one amp and I don't have any imbalance and it provides more power than what I need. Their MOSFET input with very low common-mode modulation of input capacitance should be a good match to the highish-impedance circuit. 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. I used 10 or 12 in my preamp rolling project - never a problem with Dec 6, 2018 · I don't think you can "get into it" here, it quickly degrades to psychoacoustics and audiophoolery compared to science. As expected, it measured very well and I now have 3 amps on order (2, 480-1-29A, 1, 260-2-29A). Jan 27, 2024 · The advantage of OPA1656 is that it has JFET inputs rather than bipolar, so its input bias current is much lower, making it easier to keep the output DC offset low in some applications. As you see this is a very nice departure from typical look of a desktop DAC. asy using the ADA4627 as a template 3. Two identical gain 11 amplifiers were tested. Just getting a better (cheap) opamp worth it. Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. Copied the given . Note that while the OPA1656 is unity gain stable, it does have an internal compensation circuit that causes a phase wobble in the 1-10 MHz region. I'm Apr 12, 2018 · I did fit two opa1656's which were recommended to me by a TI engineer last year. Any chance you have some measurements of the OPA1612 compared to the Sparkos SS2590 for the regular dual mono? I was also curious how many of the SS2590 opamps are Mar 17, 2019 · Hi John Yes, did it my way… 1. >100mA output current. Opa1656 has good phase response at high frequency. Though I use it only occasionally mostly for tests, and it has not operated more than a couple of hours summed, the right channel started to emit high frequency hiss noise time after time, without any special reason, even if nothing is connected to the input. 25 V to ±18 V (4. Oct 11, 2022 · The only diff in routing is the signal passing through an OPA1656 and some extra coupling caps before going to the volume pot. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. So maybe they shouldn't be used on a dip8 converter. Joined Nov 8, 2018 share a test between OPA1612 and OPA1656. My plan is to use these amps to build some active/passive monitors. If you have guitar related questions, start with the "search" field at the top of the page. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. In conjunction with the UHGF (Ultra High Gain Feedback) topology, this ensures an ultra-low noise floor, where noise levels are recorded as just 0. Spec : Fully balanced Dual 1ET400A Purifi modules Hypex SMPS1200A400 PSU Neutrik XLR inputs Sommer Cables Germany Custom Buffer OPA1656 DIP8 Second alu plate for heat dissipation Buffer Spec : - THD: 0,00026% @ Vin 2 Dec 28, 2018 · I would like to see the OPA1656, a burr brown sound plus chip. Nov 2, 2020 · Thank you and I hear your arguments and point of view. It'll struggle a bit with 33 Ω load, though. It's best use as an alternative to opa1612 when noise is not a big concern. 8k. Jun 27, 2021 · This particular implementation utilizes 10 pcs of OPA1656 op-amps. lib file into the related LTSPice folder 2. Even the bipolar OPA1662 would have a more suitable en/in balance than the stock LME49720. Try for yourself. Every amp. You retrieve so much details and trebble extension but could be a bit fatiguing. Active Member Forum Donor. "With the 4 OPA1656, compared to the AIYIMA TPA3251. Joined Nov 8, 2018 (OPA1656) + PFC/LLC PSU. com with a TI insider involved. PS: boXem has been using OPA1656 since the beginning. I have read in various forums that it is Dec 21, 2020 · The OPA1656 will perform better in many applications. Added a new OPA1656. I had no oscillations or instability with the OPA1656. Here are the measurements of the dual mono and with different op amps (Sonic Imagery 994, OPA1656, LM4562). 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 Nov 20, 2020 · Part Number: OPA1656 Lets start over with the right part number in the question Reviewing this device for some audio work, the front page noise plot is ok TI E2E support forums Search OPA1656: 3Mb / 42P [Old version datasheet] OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers REVISED SEPTEMBER 2022:. Especially the last one seems promising but first I need better test equipment to analyze such small distortion levels. lib SYMATTR Value2 OPA1656 SYMATTR Description TI/BB Audio FET Opamp to get the same symbols as the ordenary Opamp 4. There are many reviews of audio hardware and expert members to help answer your questions. Feb 6, 2021 #883 Shui Yuan TPA3255 with caps mods + OPA1656 (see my review) Hypex Ncore NC500MP Dual Mono Jan 15, 2023 · our amplifiers standardly employ the OPA1656 op-amp, with the exception of our premium stereo and mono block models, which come equipped with the Weiss OP2-BP op-amps by default. Aug 26, 2020 · MA12070 vs TPA3255 (Scientific Measurements Aside) 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, Aug 20, 2023 · Fosi Audio V3 op-amp rolling, has anyone tried it? Snake Mar 17, 2019 · The OPA1641 would be slightly better. Apr 8, 2021 · I tried OPA1622, OPA627 and OPA1612 at I/V stage and OPA1612 is clearly the best to my ears. “Rules for Official Review Threads” “Forum Terms and Feb 2, 2019 · To compare : OPA1656 bring the Bursons V5I to their knees as well and keep in mind : Burson V5I = $70 vs $10 for OPA1656 OPA1656 is a ultra low noise fet operational amplifier and delivers a low distortion of 0. I did an A/B comparison to LME47920 (metal cans), burson V5i, V6 and also the Sparkos Pro discrete op-amps on one of my DAC's. OPA1656 May 2, 2020 · Hi amigos, New Purifi Buffer in V2. This is a forum where guitarists, from novice to experienced, can explore the world of guitar through a variety of media and discussion. It's a virtually unknown chip as when you search on Digi-Key it doesn't come up as soundplus. Joined Aug 11, 2019 Messages Actually Bruno recommends OPA1656, so not Jan 17, 2024 · WANTED: Happy members who like to discuss audio and other topics related to our interest. Mar 17, 2019 · To start, OPA1656 is definitely not a replacement for OPA1622, the two parts were designed for with very different applications in mind. Forum Donor Jun 20, 2023 · But no matter if they are original or not. It has the most stable input capacitance vs. Transparency got way better. It offers exceptional performance in almost any audio application. 3. It took a while but the sound grew on me. Not only was that affordable, I could trust that the op-amps would be legitimate. Forum Donor. 5n to maintain the 15kHz bandwidth. Both fet based opamps sounds a little bit more solid in the bass (not quantity but the imaging and the texture). This is a rarely needed parameter as I guess but some of the measurement tasks require that kind of symmetry, and I just bought 1K pcs of RT6863S to use that in the Cosmos Mar 5, 2018 · I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. It was sent to me by the company and costs US $299. Nov 24, 2022 · The opa1656 goes well in the A07 Max. I've had the Burson V5i, and the V6vivid and I have no space to put a sparkos labs opamp single or dual channel. Composite amplifier is one of the best application with opa1656. 1F X7R on the backside with the shortest possible lead length. It could be very interesting to test their performance: - SNR - Bandwish - slew rate-. CMRR is not a big issue. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. Dec 10, 2021 · This is my first time doing anything DIY with audio. Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. Feb 17, 2020 · In principle all variants should sound transparent, but you have the option to change the Audiophonics OP amp if you want. I have the 789 running alongside it and they are very close but the HPA-3B has a little body to it and sounds fuller. May 23, 2018 · The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. I am considering the Muses 01 which is reputed to be a cleaner opa1656…. Audiophonics uses TI-LM4562 by default, which on paper has slightly lesser specs than the OPA1612 and OPA1656 which are used in the other custom implementations (EVAL, VTV, Neurochrome, BoXem etc). I suggest the following reference - 994Enh Discret OpAmp SONIC IMAGERY LABS - SPARKOS LABS SS3606 - AOP 1612 - LM4562 May 2, 2020 · I hope that future reviews will confirm my opinion but the bass is tight and very present despite its small size) Medium : Audiophila Master CD18 : Voices stand out very well from the mix, they are well put forward. 9nV/rtHz broadband voltage noise. A possible solution would be to lower the positive feedback capacitors and increase the resistors such that the op amp isn't driving large capacitive loads. It's very marginal but might be something to do with class A vs A/B. There are many cheap opamps to try. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. 5amp power supply. Jun 20, 2023 · When I first got my A07, i fell down the opamp rabbithole. On the α24, this is a non-issue. Feb 23, 2019 · Measurements of 19 20kHz IMD of various opamps at gain I found your review of the BRZ TPA3255 from May 2020 in the diyaudio forum and there you praised it and said it's dead silent. OPA627 is really bass forward but you lose details, clarity and energy. May 7, 2018 · 2. 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 Welcome to r/guitar, a community devoted to the exchange of guitar related information. 01 in the video below. Apr 29, 2024 · There are many reviews of audio hardware and expert members to help answer (OPA1656) + PFC/LLC PSU. boXem | audio - Arthur 4215/E2 2 channels 425 W HiFi power amplifier, Purifi Eigentakt technology. There was also a little bit of confusion when talking with Purifi. consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. -131 dB THD+N at 1kHz, 600 ohm load, 3. OPA1622 was targeted specifically for headphone applications, while OPA1656 is a more general purpose device meant to address analog signal processing in line level audio circuits. View attachment 106010 I will measure the A07 output power and spectrum cleanliness with this power supply. Historically, we utilized the OPA1612, but transitioned to the OPA1656 due to its slightly superior measurements and preferred auditory qualities reported by some users. Apr 29, 2024 · Test protocol: Audio Analyser 1 : APx555 + Passive filter (Aux-0025) Default filter : AES17 20Khz. Desire to learn and share knowledge of science required. Jun 13, 2022 · This is a review and detailed measurements of the 2022 revision of Sabaj A10d, balanced DAC and headphone amplifier. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. I use two OPA1656 in parallel in the HP-2. 2 and the 48v 7. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Jul 23, 2024 · Sticking with the OPA1656. May 20, 2024 · There are many reviews of audio hardware and expert members to help answer your questions. Mar 17, 2019 · Last week TI put a preliminary datasheet online for the OPA1656, a low noise, very low distortion op amp targeting audio applications and fabricated in a CMOS process. 3V inside of each supply. Aol Feb 4, 2024 · There are many reviews of audio hardware and expert members to help answer Forum Donor. The cost is about $30 in a local store. It is respectable and interesting. 0000x distortion and so on). Nice, clear and punchy with good leading edges on the notes and firm bass. 00006%. D. I believe I could reduce the 1st stage noise density to the 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 Part Number: OPA1656 Other Parts Discussed in Thread: TINA-TI where can the file OPA1656. The OPA1656, OPA1612 (the ones I'm currently using) or a low noise NE5532AP (if you really like the sound from the stock opamps). Other candidates are muses8920 which is almost as powerful and lower distortion. But I would still like to see the OPA1656 tested. I'm waiting for OPA1656 and ADA4896 to try at I/V stage. Mar 28, 2022 · The OPA1656 can deliver 100 mA of output current, so it should be able to drive a headphone load. 5 V to 36 V) on 3. 53 MHz gain bandwidth product, 24V/us slew rate. Amplifier: Bamboo V2 3E Audio 260-2-29A Stéréo REB B (OPA1656) May 2, 2020 · Best price in Europe = Audiophonics = 1500 euros without OPA1656 ) My price : 999 euros with OPA1656 if I sell at least 4 units. This chip doesn't fit in the common DIP8 packaging, but thankfully @Audiophonics sells a pre-modified OPA1656 for 5 €. common mode voltage that I've measured on any op amp. Jan 30, 2021 · 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) May 2, 2020 · I think I have acquired a lot of experience since I registered on this forum, it goes without saying that this review implies a part of subjectivity in my assessments). their EVAL 1-3 boards use the 1612 and their EVAL4 board uses the 1656. in order to resurrect those signals the preamp applies a maximum gain of 1000 b/c the basic mid-band gain must be ~ x100. It was sent to me by the company in a reference design for ease of testing: View attachment 332950 Apr 29, 2024 · Forum: DIY Audio Forum "Bamboo Project" : Dual Mono 3E Audio 480-1-29A Amplifier Hi amigos, Following the ASR review of the 3E Audio 480-1-29A Module, I decided to roll up my sleeves and show you that with a little elbow grease, you can create a very beautiful amplifier based on these nice 3E Audio modules. Sep 7, 2023 · On paper the OPA1612 is better but the OPA1656 has higher and much more linear input impedance which in a number of applications performs better. 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. 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 Sep 14, 2021 · Yes, the low pipe organ pedal notes down 'round 20Hz are rolled-off at 20dB/decade below that of the mid-band 1KHz level during the cutter/mastering process. Apr 30, 2021 · The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Jan 30, 2021 · The superior ADI-2 DAC FS compatibility, the OPA1656, upgraded ETI binding posts and the build quality of the Purifi Boxem 4215/E2 amp makes it the choice for me. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. I would also increase the bypass cap to 1. there is also much talk about the NE5532 being fake also and i ended up going to OPA1656 on DIP8 sockets im not a expert but i feel it sounded better with my ELAC debut b6. Feb 4, 2023 · There are many reviews of audio hardware and expert members to help answer (Sonic Imagery 994, OPA1656, LM4562). TLD be found? It does not seem to be part of the TINA fileset for OPA1656 TI E2E support forums Mar 17, 2019 · I purchased 10 OPA1656's. Joined Aug 1, 2020 Messages 343 Likes 255. I have a Boxem 4215/E2 Purifi amp with the TI OPA1656 and a March Audio P452 with the OPA1612. Jan 15, 2020 · Let's test this out! AnalogSteph had recommended the OPA1656. I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. Soundstage and placement felt more solid. May 2, 2020 · There are many reviews of audio hardware and expert members to help answer Group Buy finished amp + Buffer OPA1656 : free shipping to Europe. doug s. Altered text SYMATTR Value OPA1656 SYMATTR Prefix X SYMATTR SpiceModel OPA1656. But I experience some stability issue and over heating. Jun 2, 2019 · Of course. Aside from that, identical path. I looked at the Slew Rate as my main Oct 6, 2023 · There are many reviews of audio hardware and expert members to help answer your questions. 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. 5A. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. 1 with OPA1656) - concerning the overall listening, I think that we are rather on amps of the same range, I found the 3E Audio a little less "alive" than my AIYIMA but I think that the OPA1656 are there for something (I did not test the 3E Audio + OPA1656). I felt a great improvement overall. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. Next, OPA828 was evaluated as a gain or VAS section in a small A class power amplifier with extreme performance (2 MHz power bandwidth, 200 ns rise time, 0. Jul 4, 2009 · The Opamp thread | Page 439 | Headphone Reviews and Jan 7, 2021 · I have ordered Mean Well RS-100-24 SMPS power supply, 24V/4. Last edited: Sep 7, 2023 Nov 24, 2018 · I have to say that this opamp has a very well input stage symmetry which is better than opa1612, opa2156, opa1656, ADA4898, and many-many other opamps 3-4x more expensive. on LTSpice load, the lengthy lib update happend. Mar 24, 2021 · Hi amigos, New Purifi Buffer in V2. APx555 Nov 2, 2020 · To compare : OPA1656 bring the Bursons V5I to their knees as well and keep in mind : Burson V5I = $70 vs $10 for OPA1656 OPA1656 is a ultra low noise fet operational amplifier and delivers a low distortion of 0. This feature accommodates the power supply constraints of many types of audio products. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. In the grand scheme of things, both are ideal choices. Jul 4, 2009 · In my particular amp, opa1692 has narrower sound stage than opa1656, as 1692 is designed for portbable use with trade-off (low power draw). You can dig on the Internet and find modern op-amp test results, but it quickly crosses over into sonic character and subjective opinion. Mar 17, 2018 · Finally I decided to nest already very good TPA6120A2 inside feedback loop of another 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. 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, Mar 17, 2019 · OPA1656 rolling I tried in all cases to bypass the rails with a 0. Tried putting in opa1612 today. Sep 17, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. Talking about AIYIMA A07, it will end up in a dustbin soon. 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. 5V to 36V) on 3. I think it's a matter of circuit design and implementation. LME47920, LM4562, OPA2134, OPA2132 DIP8 opamps, or SOIC8 on adapters like OPA1656, OPA1678. Dec 10, 2023 · This is a review and detailed measurements of the 3e Audio 480-1-29A, TPA3255 based class D amplifier module. Nov 30, 2021 · Stability should be considered especially with the wider bandwidth of the OPA1656. Regarding the OP amps, I disagree : take a look @DIYaudio forum when I talked about OPA1656. The output swing for Aol should be considered as it is different between the two devices. I found a very silky side in the mids, the amp is closer to the TPA3255 Hanzao / OPA1692 than to the Shui Huan OPA1656. The FET-input architecture achieves a low 2. Opa1656 is pretty good with 100ma. Feb 20, 2021 · WANTED: Happy members who like to discuss audio and other topics related to our interest. 000035% (–129 dB) at 20 kHz If you love the OPA1612 you will love the OPA1656 too. PRODUCTION DATA. / TPA3251 / 55. There are many dual opamps to choose from. Dec 7, 2023 · There are many reviews of audio hardware and expert members to help answer your Forum Donor. Opa827 was my favorite but expensive and doesn't have much current. Joined Aug 3 Dec 28, 2018 · Opa1622 is supposedly a better choice. May 28, 2020 · 2nd Generation Purifi EIGANTAKT 1ET9040BA Amplifier May 20, 2023 · Find many great new & used options and get the best deals for Upgraded AIYIMA A07 TPA3255 Power Amp, with opa1656 & heat dissipation. 1 is now ready with OPA1656 in DIP8 socket. Again, from known dealers or vendor like Digikey or Mouser, not Ebay or Aliexpress Jul 4, 2009 · Here is my take on XD05 and V5i pairing: What others found before my post is true indeed. 3µV, which translates to a THD+N of 0. Mar 27, 2019 · OPA1656 / OPA1612 / Burson V5i / OPA627 / Genuine NE5532 / Genuine Muse 02 / 0PA1622 / OPA1642 / OPA1602 The question of Op amps has already been debated on DIY audio, and I had used the OPA1656 and I think the opinions are unanimous, these Op amps are very good and seem to work the best with those amps. 7 pA/rthz) will multiply with the pickup resistance (varies quite a bit, say typical is 10 kOhm) to become the May 25, 2018 · Question: by calling it NFCA, is there one opa1656 channel that not only drives the output, but also drives the rest 9 opa1656 channel? Or put it the other way, is the architecture similar to what ADI-2 Pro/DAC has? In ADI-2 Pro, for each channel, one OPA1688 drives both the output and also the other 5. Mar 30, 2020 · LEAF Dac Dual 9038Q2M VS Gustard X16 ! Pictures inside Jan 10, 2021 · There are many reviews of audio hardware and expert members to help answer Muses02, opa1656 sounds better . 6 fa/rtHz broadband current noise. Are there any other Aug 3, 2024 · Sticking with the OPA1656. Joined Nov 8, 2018 Messages 170 (OPA1656) + PFC/LLC Apr 29, 2024 · Forum: Amplifiers, Phono preamp, and Analog Audio Review "Micro Bamboo Project" : 3E Audio 260-2-29A Stereo amplifier + Micro-Audio PSU Hi Amigos ) As promised, I remain faithful to my Diyer position ) After my dual Mono project "Bamboo" I return to the scene with a new project "Micro Bamboo" to pay tribute to Micro Audio and its audiophile May 22, 2023 · I would give OPA1652 and OPA1656 (and maybe OPA1688) a closer look as well. Now that the basics are laid, here's what I can tell you about the Jlester module Setup : Jlester TPA3255 OPA1656 (will check with Genuine Muse 02 Op amps later). 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Jun 8, 2023 · Some members in the Pass Labs forum section used my design in their First Watt clones with the same conclusion. 32v 5a at the best online prices at eBay! Free shipping for many products! May 2, 2020 · Forum Donor. Many people were doubtful about my feedback and since everyone equips their TPA3255 with the OPA1656 Aug 20, 2023 · Edit: After playing them back and forth for a bit, i swapped the OPA1656 back in and actually prefer it over the SS3602, the OPA1656 seems to have a lot more detail and transparent than Spanky, not to mention the OPA1656 is what Bruno recommended anyway, the Spanky just doesn't seems to be a good match with this 1ET7040SA. 3 nV/rtHz lower limit of the OPA1656 (at 1kHz) by eliminating the 3 input resistors and reducing the feedback resistors to 330R and 6. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211. Nov 28, 2022 · Part Number: OPA1656 Other Parts Discussed in Thread: OPA192, , OPA551, OPA547, OPA593 Dear members: For a measuring circuit I need an operational with output current of 100mA and differencial supply voltage of 15V. I found the Bass being sweeter, the fact you can juggle the equalizer is really fine and brings something very interesting. The diyaudio forum might be better suited for posing the question. Quite impressed with them. XD05 shines with the V5i, went a great deal in removing the veil and 'darkness'. Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. yekqsbgpgzscznazvupcwsnynvwpinmyvxhgmkwobnthticokq