Opa1612 review audiophile forum. 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. The 1642 does not as the offset is too high. I suggest the following reference - 994Enh Discret OpAmp SONIC IMAGERY LABS - SPARKOS LABS SS3606 - AOP 1612 - LM4562 May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. Feb 1, 2024 · Hi! I would like to share with you my own listening experience with the new Fosi Audio ZA3. Dec 11, 2014 · 3. 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. Pretty much a stock board with the stock NE5532 op amps, however I did install some slightly nicer DIP 8 sockets. Several reference are used on forum. 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. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. You retrieve so much details and trebble extension but could be a bit fatiguing. Each channel has 4 outputs summoned, thus lowering the already really low noise by around -6 dB. It was sent to me by the company and costs US $619. I don't know if anyone sells it cheaper or not. Custom Input Buffer Board w/: Jun 21, 2021 · It looks promising but there are no professional reviews of it yet, just 1 lightweight review by Dagogo of the streamer. 5mm, 2. 0（ES9018+ES9601+OPA1612）chipsets The other variants of the Vivo X5 Max and Vivo X5 do not have them. 1-nV/√ Hz noise density with an ultralow distortion of 0. I've dropped the 1612 into a preamp and it passes music. OPA627 is really bass forward but you lose details, clarity and energy. Hopefully someone will do a more useful review in the future that compares the Stereo Ultra to other known amplifiers. So, it is a different design and chip. Real competition looming with the Wiim ‘Ultra’. Soundstage and placement felt more solid. 000 (DIY!) tube preamp with tube Dec 17, 2018 · The OPA-627 is a terrific op-amp. Dec 15, 2019 · I settled on the Sparkos SS3602 versus several others including the OPA1612, the classic audiophile favorite, OPA627, and Burson V6 Vivid. 33ohm. A personal Audio Advisor with tons of stereo equipment reviews. Audiophiles can be really picky and tough to impress and if the audiophile community says something sounds good, you can bet it's great! This headphone or gear has gained recognition and admiration from audiophiles, who are known for their discerning taste in high-fidelity audio. 000015% at 1kHz. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. - Choice is not permanent and can be changed by the customer via internal jumpers at anytime. My statements were verified: - OPA1611/1612 are optimized for better distortion than the OPA211 (already pretty good). At least -120db thd performance. One is 45. V6 vivid measured superb tho. Feb 13, 2016 · Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. It will cost US$169. The OPA1612 is generally used as IV stage for ESS DACs. Keith Sep 17, 2023 · Tried putting in opa1612 today. 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 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 152 MHz, very low noise both (-100dBc). the differences aren't huge, but big enough to make a change worthwhile. It was sent to me by the company to be sold by Shenzhenaudio. It is equipped with two Texas Instruments TPA3255 amplifier chips which allows it to output 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. 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. 7" Meizu Pro 5 – ESS ES9018K2M DAC / OPA1612 Amp w/ NXP Transistor 5. Mar 22, 2022 · These are probably among the two highest of the best sounding dual opamps around today. 1ohm or 0. Nov 21, 2022 · Yes it is, but for that plenty of other options are available. Chris, when do we decide that questions don’t get an answer? ©2007-2024 Audiophile Style, LLC. Feb 13, 2016 · This is a review and detailed measurements of JDS Labs Atom Headphone Amplifier. Noise is roughly around 3-4nV. The owner then ordered a set of Sparkos Pro SS2590 discrete opamps. The Fosi Audio ZA3 is a compact integrated class D amplifier that can operate in both stereo and mono mode. That unit came with the Sonic Imagery's 990ENH discrete operational amplifier ("opamp") in the buffer stage (pre-amplifier). Worth every penny. This configuration is best for use in setups with a source/DAC capable of higher pre-out voltages. (super audiophile!) Community platform by XenForo Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. Aug 22, 2009 · I talked to a TI/B-B applications engineer today. Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. 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. Audio reviews, science and engineering discussions. It sounds different from the Drop Signature version (I have no idea how the V2 Signature sounds like), in that it's less laid-back, less outright warm, but yet maintains a palatable mid-to-high treble free from digititus common in the higher May 23, 2018 · The first and obvious conclusion: we must avoid the audiophile Burson Audio V5. Dec 7, 2023 · This is a review and detailed measurements of the 3e audio 260-2-29A TPA3255 chip based stereo amplifier. But my old audiophile ears tell the truth after all these years and systems, so… maybe I’ll get a retro Yamaha and put the Fosi and its little tube partner inside!! Oct 2, 2021 · Those amplifiers and the topping d10s are incredibly bargains, and a perfect beginning for audiophile students and such. 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. I Feb 17, 2021 · Couple of Accusilicon AS318-B Series Professional Audiophile Crystal Oscillators, about 50 USD each. I don't care about listening tests or something else, just want to use the technical better one in my amp. High Performance-Up to 32bit 384KHz sample rate, bit-perfect DSD512, and -118dB THD+N (line-out). 1584 MHz and the other one is 49. A number of years ago, I upgraded the stock LM6172 op-amps in a Marantz CD67-SE to OPA-627s, as part of a hot rod job (upgraded caps and fully reworked output stage). Aug 3, 2019 · I have successfully assembled and tested them with OPA1642s and OPA1612s. Xiaomi Mi Note Pro - ESS Sabre ES9018K2M DAC / 2-stage TI OPA1612 & ADI ADA4896 Amp + dual clock oscillators + 28 high-precision audio resistors (600 ohm Headphones) 5. 0) and Vivo X5 Max Platinum edition has the YAMAHA YSS-205X + Hi-Fi 2. This here is the V2 version of the Zen DAC. Oct 25, 2018 · I've designed a headphone amplifier using OPA1612 as a gain stage and using OPA1622 as output buffers. 5" ZTE Axon 7 - AKM4961(Recording)+AKM4490(Main) / Dolby Atmos 5. 2nF straight from the mains into the chassis, simply because he heard somewhere that mains disturbances are audible. It ensures a very low noise density of 1. The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. 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. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. Btw the frequency compensation is used according to the designer in order to get it stable. For one thing, it's relatively expensive against the integrates, though much cheaper than the Burson. MUSES8820 is the best, IMHO Sep 22, 2020 · • ES9038PRO SABRE audiophile DACs (140 dB of dynamic range) • 16 channel XLR outputs with OPA1612 HiFi Audio op-amps • Price: $9,600 X7: • ES9026PRO SABRE DACs (124 dB of dynamic range) • 16 channel XLR outputs • Price: $6,600 Mar 27, 2023 · - Buckeye buffer stage (OPA1612 OP Amp), allowing for Low/Med/High gain settings via toggle switch on the rear. If you are a member of the audio/video industry and want to post information about your products (announcements, getting product feedback, etc. The damn thing played holographicall Jul 25, 2023 · Apparently SMSL has a new product called the DL200 that is selling on AliExpress for 190 USD shipped. A special place for music lovers. Mar 14, 2010 · OPA1612 is fuller sounding - especially lower midrange but also more dynamic. sure why they made it ( obviously know the audiophile market better than me) but they did, interesting to know which will be their next step, a £5k ‘audiophile’ version or actual added functionality/value to their existing products. It retails for USD $99. Oct 25, 2023 · FiiO K9 PRO is a $849 USD DAC / Headphone Amplifier with a multitude of inputs and outputs, a bulky but cool design, and with enough driving power to deal with most headphones out there. Taking a lead form "rolling" tubes in tube products, a trend has started in replacing op-amps -- sometimes with much difficulty -- to improve performance of solid state products like DACs. Lenovo Vibe X3 - ESS Sabre 9018C2M(Main) + Wolfson WM8281 DAC (Recording) / 3x TI OPA1612 Amp / Dolby Atmos 4. Thank you Oct 25, 2018 · Neurochrome hp-1 is essentially the same but using opa1612 and paralleled the whole composite amplifier section. As such, I will be comparing its performance to other $99 amplifiers such as Schiit Jan 15, 2022 · There are not a lot of fora (and maybe just 1 forum) that does measurements and graphs. 2" Meizu Pro 6 – Cirrus Logic CS46L36 DAC/Amp w/ NXP TFA9911 5. 5" Lenovo Vibe X3 - ESS Sabre 9018C2M(Main) + Wolfson WM8281 DAC (Recording) / 3x TI OPA1612 Amp / Dolby Atmos Nov 1, 2023 · This is a review and detailed measurements of the SMSL D400 Pro balanced stereo DAC with Bluetooth support. The different players sounded different. Audio recommendations from audiophiles and free forums. 1nV/√Hz Noise, Low THD and Precision. I felt a great improvement overall. Nov 26, 2017 · thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. Mar 1, 2016 · So there is the audiophile designer, using transformers with a shield to remove the slightest chance of the mains polluting his system ground, then installing a schaffner inlet that puts 2. Questions and Answers. I also think that op-amp rolling is rather fun, even if the only op I found to be sounding clearly better than ne5532, was the lm4562 ( the others I tried: opa1642 opa2134 and opa1612 ) Feb 13, 2014 · I think only the Vivo X5 Max+ (supports Hifi 2. Ask questions and get advice on stereos, speakers, hi-end amplifiers, pre-amps, home theater, tube hi-fi, turntables, vinyl, tweaks, music, films, video, DVDs and more. 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 May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. It was kindly sent on loan by JDS Labs in advance of its formal announcement and availability this week. I have them measured ln violectric v200 and gain stage of o2. Feb 13, 2016 · This is a review and detailed measurements of the SMSL SU-6 stereo Bluetooth and USB DAC. 6k posts. 1-nV/√Hz as well as an extremely low distortion level of 0. Oct 20, 2020 · 7) DIYINHK ESS ES9016 DAC - $30 shipped - SOLD Bare DAC board with no power supplies based on the ES9016 chip. It is hard to get it stable so 1 ohm output resistors are added in each output instead of what i liked 0. It was sent to me by the company as a complete unit even though they only sell the amplifier modules. 3 V power supplies. 000015% at 1 kHz. Although the XLR port is covered in most photos, and in most images you can find online, it does work, and the volume wheel has a really snazzy LED ring around it. Transparency got way better. I thought that the C200 was ridiculous value but this seems even better, its got apparently twice the HPA power, newer chip, bigger display, and basically all the technical specs you you would want. I'm not necessarily advocating the Sparkos. Dual customzied solution will give unmeasurable distortion (possibly -180db). It is a little bit cleaner and perhaps because of that instruments are more defined in space. they just "supports Hi Fi" Jan 7, 2020 · TI’s OPA1612 is a SoundPlus™ Audio Operational Amplifier with 1. I use TPS7A4700 and TPS7A33 low noise DC to DC converters with 4 µV/16 µV noise. ) this is the forum for you. But are you talking to the subjective forums and driving them to be more objective, or just this forum to be more subjective? 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. Buck cap change to 1500uF/80V/Nichicon due to 1800uF/63V/Rubycon not able to purchase. Oct 27, 2022 · While I heard and reviewed the Drop Signature variant here, I had never had a chance to hear the plain Zen DAC. Nov 2, 2018 · I am trying to wrap my head around the preference for DAC >>> OPA1612 >>> HPA1 versus DAC >>> OPA1612 >>> TPA6120 or even DAC >>> OPA1612 >>> LJM HPA2 PRO (With Parallel 4x OPA1612) Right now I am going back and forth between the TPA6120 and the LJM HPA2 PRO (With 4x Parallel op-amps). Edit: US price May 15, 2022 · Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power Supplies OPA1612, OPA1642, MUSES8920 and MUSES8820. Feb 13, 2016 · This is a review and detailed measurements of the AUDIOPHONICS DAC I-Sabre ES9038Q2M Raspberry Pi DAC. The 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 Mar 13, 2012 · Like its sibling devices, the X5Max places heavy emphasis on its audio performance, which is why it packs some dedicated audio chips -- Yamaha YSS-205X signal processor, Sabre ES9018K2M DAC, exclusive Sabre ES9601 headphone amplifier and OPA1612 amplifier -- as part of its "Hi-Fi 2. 4mm and 3. 7. Mar 1, 2016 · System: Equitech 1. 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 Forums Equipment. BTW, last year I crippled my €4. The scalloped front together with the high resolution and bright display make this one of the most beautiful products SMSL has Dec 8, 2020 · Finally, using the same OpAmp type throughout is convenient and cost-effective in mass production (the 1611 will actually be 1/2 1612 in most implementations, and in a true precision application the OPA1612's will be OPA2211's -- same chip but selected for better offset ratings). Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. Reactions: Phorize , August and Evgeniy Aug 24, 2018 · As per moderator, here is full article from the site: Objective Guide to Op-Amp Rolling - Part 1 July 30, 2021 Op-Amp Test Board This blog article/post is a deep dive into currently available 8-pin DIP dual op-amps, for those that like to swap op-amps in their designs and/or DIY projects. I really like the slick look of SU-6 with its white LED: Yes, you can adjust the brightness level (I think there are 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. 5Pro Revered by Audiophiles. add a optional 12V connector (not populated) for some people that need for power LEDs,etc. Feb 13, 2022 · Amplifier – AD4610 & BUF364A & OPA1612 Output Power – Single-ended 460 mW@32Ohm / 920mW@32Ohm Balanced Output – Interchangeable system, supporting 3. The two 1612s that I have tested have offsets <150uv and the DC servo loop functions in the MC preamp. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. This was kindly sent to me near a year ago by Audiophonics. As you see, it is a generic box which is something you can easily build yourself. 99. the ne5532 looks a bit harder, narrower and more direct, the other two a bit more relaxed and 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. 5mm, 4. 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. Transients are stronger, both rimshots of snare drum and big-band trumpets. Sep 15, 2018 · This is a study of whether changing op-amps in a DAC makes a measurable difference. Meet the PecanPi DAC and Streamer Improvements over previous generation DAC include: Fully linear ultra low noise power supplies Re-clocking with Crystek femtosecond jitter oscillator Built in HW volume control (no Volume-Clocker needed) Built in high performance headphone amplifier Full Apr 8, 2021 · I tried OPA1622, OPA627 and OPA1612 at I/V stage and OPA1612 is clearly the best to my ears. I appreciate your etiquette to suggest that subjective listening is part of thIngs… it at leasts seems like maybe it’s the end goal. A few months ago I May 1, 2013 · 5. . Today we will be taking a look at how it Nov 23, 2020 · DAC + OPA1612 Op-Amps - Tone2 Pro combines the ESS ES9038Q2M with x4 OPA1612 operational amplifiers that deliver superior audio quality. 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. But that does not say anything about the SQ. It could be very interesting to test their performance: - SNR - Bandwish - slew rate-. I would recommend trying opa1612 for people who havnt had a thought about it. 0" package Apr 27, 2023 · Definitely made by Eversolo, not. The DAC I-Sabre ES9038Q2M cost 129 Euros from Audiophonics direct. This gave me a chance to Dec 7, 2023 · The audiophile in me wants a bigger box, better credentials, a name I can look at and say ‘hmmm nice!’. This needs +/- 12 V and two 3. - high levels of DC precision are generally not required by audio customers (audio equipment makers). dnyx liv gpxanw oeqnyp dkmz egmar gzstge vscc ostuz iiak