Opa1612 dip8 review forum. It provides a very low noise density of 1. OPA1612 is one the most low-noise opamps ever built, so totally recommended for unity-gain stages (LPF or output stage of a DAC, but also I/V stage too). It has the most stable input capacitance vs. The diyaudio forum might be better suited for posing the question. I have always enjoyed OPA627/37. But that does not say anything about the SQ. (AIYIMA, DrMordor V1 + V2, Zero Zone, 3E Audio, Generic TPA3255; BRZhifi etc). We would like to show you a description here but the site won’t allow us. Find parameters, ordering and quality information Opa2210 A mon oreille en lpf de pcm1793 smsl l opa2210 sonne mieux que opa1612 opa1642 opa627 opa1656 lm4562 et muses02. Several reference are used on forum. now lets see and talk about my Audio Gears for testing V5i: with dual to mono adapter somehow I managed to install the 2 V5i Single inside the well known LD I+ hybrid tube amp. Edit: US price I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136 I use these amplifiers for pro audio. So maybe they shouldn't be used on a dip8 converter. • Wide Supply Range: ±2. just dont pot the module in epoxy or tar. 1 nV/√Hz noise density with an ultra-low distortion of 0. Bright white LED display is highly responsive as is the rotary Dec 6, 2018 · I don't think you can "get into it" here, it quickly degrades to psychoacoustics and audiophoolery compared to science. It ensures a very low noise density as well as an extremely low distortion level. The OPA1611 (single) and OPA1612 (dual) bipolarinput operational amplifiers achieve very low 1. 001 to . 1 nV√Hz CMRR was respectable at 100dB for the 5534 But modern types up to 120 dB Distortion real world for old opamps be about . 1-nV/√ Hz noise density with an ultralow distortion of 0. Mar 25, 2017 · I had read up a lot of blogs about discrete opamps, and I wanted to see what the fuss was about. 000. What is my opinion from the subjectivity of just listening to music?, I think it is a great product considering its price. Currently, I require opamps in the DIP package. 004 % when modern types are way way way below that in the . I own almost all the TPA325X, see my reviews on Forum. Apr 21, 2019 · Sound: For purposes of these tests, I started out with a Burson Swing and Fun DAC and amplifier. 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. This OPA provides very good electrical and audio performance. The DAC I-Sabre ES9038Q2M cost 129 Euros from Audiophonics direct. The OPA1612-Q1 device is available in a SOIC-8 3. However, due to space May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. That unit came with the Sonic Imagery's 990ENH discrete operational amplifier ("opamp") in the buffer stage (pre-amplifier). In order to satisfy this itch, I ordered the Sparkos dual discrete opamps from the manufacurer site Jun 13, 2020 · Putting aside aesthetics, case design / quality, size / weight, warranty - please step forward if you believe any of these 1ET400A based amps have stood out or should stand out as sonically superior in a blind test and explain why? (op-amp, psu, wiring, snake oil etc etc. Dec 10, 2015 · A fair question! And although I was the product definer and systems lead for this part, I don't get 100% control over the marketing folks But, I can honestly say that when we started working on this part about a year ago, I was very adamant that I didn't want to create a part with excellent specs but terrible sound quality in the real world. The OPA1612 is just optimized for lower source impedances, such as sa-mo's moving coil cartridge: more input stage tail current, hence less noise voltage and more noise current. Be the first to review “PAIR OPA1612 Opamp in DIP8 adapter for VTV Amplifier Custom Buffer” Cancel reply Dec 7, 2023 · Get any OPA1612 or 1656 @ fair price for great performance, safe value ! Why do you think 3E Audio and Sylph Audio removed their DIP8 socket from their last PFFB TPA325X modules and got the OPA1612 as stock OP amps ? 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. It could be very interesting to test their performance: - SNR - Bandwish - slew rate-. 90 mm × 3. ) Listed in order of May 15, 2022 · Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power Supplies OPA1612, OPA1642, MUSES8920 and MUSES8820. The new OPA1622 delivers lowest distortion and noise, high linear output current, and low power, enabling the highest performance for professional and portable audio applications. 0mV appears across the 47KΩ non-inverting input load resistors and at rest the finished Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. J'ai tout testé de l OPA1612, OPA627, Genuine NE5532, OPA1611, OPA1622, Burson V5i, MC33272 etc etc Avec les OPA1656 = la crème de la crème, les OPA1612 restent mes préférés. This configuration is best for use in setups with a source/DAC capable of higher pre-out voltages. Ils apportent du micro détails, améliorent grandement la scène sonore, et subliment le hut du spectre. The reality here is there is very little point in sanding off the chip marking as for those who really intend to reverse engineering, those are simple quiz. 000015 % range and bandwidth will Jun 9, 2024 · The OPA1612 (dual) bipolar- input operational amplifiers achieve very low 1. On Saturday I have received the OPA1612, I have already installed them and since that day they are working all day in the place where I had planned to use this amp. Mouser offers inventory, pricing, & datasheets for Texas Instruments OPA1612 Series Audio Amplifiers. I suggest the following reference - 994Enh Discret OpAmp SONIC IMAGERY LABS - SPARKOS LABS SS3606 - AOP 1612 - LM4562 Feb 17, 2018 · This DAC is using a dual 9038Q2M chips and fully balanced and also equipped with DIP8 OP amps and removable BT module. ” For those who want to do just that, it is difficult selecting which op amps to “roll with”. common mode voltage that I've measured on any op amp. It was sent to me by the company and costs US $430. You can dig on the Internet and find modern op-amp test results, but it quickly crosses over into sonic character and subjective opinion. Psychic contributors here now . Aug 3, 2019 · In the review of the Fosi V3 (Fosi Audio V3 Amplifier Review), Amir wrote “There are replaceable op-amps for those of you who have nothing better to do than mess with the design. 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. Apr 10, 2019 · By newer I meantnewer, because OPA1612 is a newer design then let's say NE5532 or even LM4562. Both the Fosi V3 and Mar 17, 2019 · The OPA1641 would be slightly better. Dec 28, 2018 · Not really. The OPA 627 is well over price and is bass heavy and it’s not worth the price you pay for it The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. This was kindly sent to me near a year ago by Audiophonics. Jan 21, 2022 · You have answered another one of my questions before I ask - input impedance - I was reading earlier about OPA1656 vs OPA1612, and bipolar vs FET. add a optional 12V connector (not populated) for some people that need for power LEDs,etc. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 1uF X7Rs pin 8→gnd, pin 4→gnd and pin4↔pin 8. But I experience some stability issue and over heating. Dual customzied solution will give unmeasurable distortion (possibly -180db). Staging and imaging are phenomenal. 6 mA per Channel package. Jun 7, 2016 · Before writing this review I would like to say many thanks to Mr Charles from Burson Audio for sending me the hybrid op amps for review purposes. It is great to have some measurements behind the OP amp selection. The enclosure is cast Al/Zn, at 0V and everything “grounded” only via the cable shields to the main preamp. but overall it will stay the same. OPA1612 Dual OPA DIP8 (Unit) The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. Just did an A/B with 2 opamp buffers on my Hypex NC500 monoblocks, which I normally use with no buffer, as the dac has enough gain to drive the NC500 modules direct. Frequency (Hz) Voltage Noise Density (nV/ Hz) 1 10 100 10 100 1k 10k 100k 1M 10M C020 + + ± ± Treble Bass +15-15 1/2 OPA1656 1/2 OPA1656 Input Output Pad Product Feb 13, 2016 · This is a review and detailed measurements of the AUDIOPHONICS DAC I-Sabre ES9038Q2M Raspberry Pi DAC. and some other Class d and Class H amp. Texas Instruments OPA1612 Series Audio Amplifiers are available at Mouser Electronics. Two 4556 can already give 200ma of output current. The Audiophonics OPA1612 operational amplifier is based on an authentic Texas Instruments 1612 chip. Mar 27, 2023 · - Buckeye buffer stage (OPA1612 OP Amp), allowing for Low/Med/High gain settings via toggle switch on the rear. Feb 19, 2022 · This is a review and detailed measurements of the Loxjie D40 stereo DAC with Bluetooth and headphone amplifier. Custom Input Buffer Board w/: Dec 11, 2019 · It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files Apr 26, 2020 · The amp remains totally silent even with its volume at maximum. it really doesnt need to be thermally equalized. I used polystyrene caps b/c they can be had surplus in 1% values. Heard it all here with different LS and poweramps. Nov 24, 2022 · Small update of the opamps change on my Aiyima a07 Pro. May 13, 2024 · Noise wise, the OPA2210 outperforms the NE5534A: less noise voltage, about the same noise current. Mar 17, 2019 · For a DAC chip with a low output current, I would suggest op amps with FET type inputs, either JFETs or CMOS. Buck cap change to 1500uF/80V/Nichicon due to 1800uF/63V/Rubycon not able to purchase. 1-nV/√Hz noise density with an ultralow distortion of 0. com. AUDIOPHONICS OPA1612 Dual OPA DIP8 (Unit) - reviews - There is Dec 26, 2019 · There are many reviews of audio hardware and expert members to help There seems to be so much chatter about the OPA1612, 1656, 1692, 2604, in this thread Apr 8, 2021 · Hi amigos, I share with a quick review of an unknown new DAC. Dec 15, 2015 · Texas Instruments (TI) introduced the newest addition to the company’s Burr-Brown Audio line, a next generation of the widely adopted OPA1612 audio operational amplifier (op amp). Swapping to other opamps may improve performance but not likely to increase output power. You should be able to find single-to-dual DIP8 adapters for mounting 2xAD797 on a DIP8 socket. Ma config : Ampli TPA3255 by Dec 7, 2023 · Input Opamp Change to OPA1556,this is due to part unified that we found it perform the same as OPA1612 in another project. Feb 11, 2021 · My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. Opa1622 is supposedly a better choice. Sep 14, 2021 · The DIP8 socket has 0. It is using the same chips as the Soncoz SGD1 ) At first sight, the DAC is really really Jul 4, 2009 · V5i brought about a drastic change by controlling the bass better, making the hit/slam quicker, less bloomy, opening up the mids and extending the highs which the XD05 badly needs. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes d Features •1 Superior Sound Quality TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. The discrete op-amps feel much more robust and sturdy than their IC counterparts. I like the design -- it reminds me of some European brands. MUSES8820 is the best, IMHO May 13, 2024 · NE5534 is a classic go too low noise typical Vn be about 4 nV√Hz as with modern low noise OPA1612 Vn be about 1. OPA1612 Super OP amps. 1-nV/√Hz and an extremely low distortion level of 0. Sep 29, 2023 · Sparkos SS3602 Dual Discrete Op-Amp Design. (Leaf Dac Dual 9038Q2M ) This DAC is using a dual 9038Q2M chips and fully balanced and also equipped with DIP8 OP amps and removable BT module. The owner then ordered a set of Sparkos Pro SS2590 discrete opamps. It is using the same chips as the Soncoz SGD1 ) At first sight, the DAC is really really well made with quality components and seems to be very flexible = removable OP amps, removable BT board etc It is also compact (168*110 Dec 26, 2019 · There are many reviews of audio hardware and expert members to help There seems to be so much chatter about the OPA1612, 1656, 1692, 2604, in this thread Apr 8, 2021 · Hi amigos, I share with a quick review of an unknown new DAC. 91 mm Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. Low output current would mean the transimpedance gain of the I/V circuit will be high, and the input current noise of the op amp will be a significant contributor. Level of transparency and detail retrieval are better compared to stock OPA1612 and few others I tried from LME/AD/OPA series. Physically, the SS3602 is just 2 square PCBs with circuitry on the top and DIP-8 pins on the bottom. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. I also own some Hypex NCore NC502 / NC 500 and NC250 MP and a brand new Merus double Mono amplifier. . we've been there. Reactions: Phorize , August and Evgeniy The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. ••• Mar 22, 2022 · These are probably among the two highest of the best sounding dual opamps around today. Et comparé le tout a un smsl c100 c'est comme si le c100 gommait les aspérités de la musique. I don't know if anyone sells it cheaper or not. - Choice is not permanent and can be changed by the customer via internal jumpers at anytime. Jan 26, 2022 · The amp remains totally silent even with its volume at maximum. 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. OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. 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. These devices also have a high output drive capability of ±30 mA. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. 000. Apr 27, 2023 · There will be a few versions of this module, mainly focussing on putting every component ontop so Assembly gets way cheaper than both-sided, also DIP8 sockets for those opamp swappers out there. In order to satisfy this itch, I ordered the Sparkos dual discrete opamps from the manufacurer site The Audiophonics OPA1612 operational amplifier is based on an authentic Texas Instrument 1612 chip. Jul 5, 2006 · What are the best sounding dual opamps (plural due to subjectivity)? Preferably in DIP-8 package. 1-nV/√Hz as well as an extremely low distortion level of 0. OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier Burr-Brown (TI) OPA134_071: 403Kb / 14P: Oct 12, 2020 · I am member of diyaudio. It ensures a very low noise density of 1. 000015% at 1 kHz. But for normal customers who need to fix their units (the customer service of topping/smsl sucks), this makes them hard to do so. The device is specified from –40°C to • Rail-to-Rail Output +125°C. Pro To Dual Op Amp Adapter Convert your SS2590 pro discrete op amp to dual DIP8 applications with our adapter. 9 nV/√Hz at 10 kHz Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. Feb 13, 2016 · Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. Apr 27, 2023 · OPA1612 Dual OPA DIP8 (Unit) - Audiophonics The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. 000015% at 1kHz. 25 V to ±18 V Device Information(1) 2 Applications PART NUMBER PACKAGE BODY SIZE (NOM) • Professional Audio Equipment OPA1612-Q1 SOIC (8) 4. L'Opa1692 sonne bien aussi. This gave me a chance to Mar 6, 2022 · other forum member also identify their clock circuit here. I don't care about listening tests or something else, just want to use the technical better one in my amp. Great table. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. I also refurbish large format recording consoles. The OPA2210 is a jewel ! I tested the OPA1622, OPA1612, OPA1656, OPA1692 The OPA2210 definitely worth trying as I said before ! (I sent a pair to another forum member to get his opinion as well) In any case, do not embark on this adventure without having good welding skills. 1-nV/ √ Hz noise density with an ultra low distortion of 0. Mar 9, 2023 · Is the OPA1612 good enough to feed into an external amp? It's in the Fiio K3s but I want to use it as a standalone DAC Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. ebntet htqdb ghosomo qgycyb ukcd lst uzsmt xkc tja rao