Opa1622 review. Click here to have your audio equipment measured .
- Opa1622 review MUSES8820 is the best, IMHO. I'm rolling capacitors, just add 4x 220uF Nichicon Audio KA for opa1622 and 6x ~180uF MLCC in main DC-DC rail. The Muses 8920 was a little mashed in regards to over In this review, we listen to the Lotoo PAW 6000 which is the company's latest reference class digital audio player and the smaller sibling to the flagship PAW Gold Touch DAP. 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 There are many reviews of audio hardware and expert members to help answer your questions. The 1688 is very similar sounding I've heard but it's got the added advantage of being in soic package! does meizu hifi pro have a power saving mode ( activated by default) not powering the ti opa1622 amp to save battery life and only relying on the CS43131 dac output of 2x30mW ? i notice that to get similar normal sound Sabre ES9038PRO + TI OPA1622. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior Buggle2 Riaa board. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. 0003% Recommended impedance load: 16Ω ~ 600Ω Output power: 30 mWt per channel @ 32Ω, 6. Thank you Max! Best, Alec. 2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. The 1688 is very similar sounding I've heard but it's got the added advantage of being in soic package! I tried to put OPA1622 to the output buffer of FiiO X3II player in place of LMH6643. Amazing amplifier, no problem with unity gain stability. The OPA1622 operates over a very wide supply range of ±2 V to ±18 V, on only 2. NE5532 is a very good amplifier especially for the price ($0. 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. 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 Thank you @soekris that was a lead! I see now that the input bias current of the OPA1622 is quite high (1. 4k. This device also has a high output-drive capability of +145 mA per –130 mA. Have you OPA1622 for Subwoofer Channels: While the subwoofer channels are feeding Next was the opa1622 (the most technical and flat sounding) which has a very balanced sound with tight drums, and a very clean overall sound and dark background. I am looking into the OPA1622 model and its behavior for you. The manufacturer’s choice of the LME49720 op-amp is the standard solution for many devices in this class today. Click to expand staticV3 said: The mblu HiFi (cx31993 The Cayin T01 Motherboard is the second module for the N6ii DAP featuring a dual PCM1792A DAC and a quad OPA1622 op-amp design. OPA1622 for Subwoofer Channels: While the subwoofer channels are feeding the active SVS SB-12NSD subwoofer, the OPA1622 ensures that the bass signal remains clean and controlled. It is priced at $339. Prodigy 35 points Thank you Alec! I have come up with a new design using only OPA1622 op-amps as unity gain buffers for the output stage in a related question. I don't care about listening tests or something else, just want to use the technical better one in my amp. OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. DAC: CS43131 OPA: OPA1622 Frequency range: 20 Hz – 40 kHz Signal/noise ratio: >120 dB Dynamic range: >120 dB THD+noise: <0. 5). The goals of the project were fairly straightforward: 1. It was kindly purchased and drop shipped to me by a member. 8-nV/√ Hz noise density with an ultralow THD+N of –119. The first candidate is the OPA1622. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior I will also review your parallel OPA1622 as shared below your reply. However, we recommend that you immediately replace it with something else. It has the most stable input capacitance vs. This will keep the subwoofer tight and accurate, allowing the Electra 906s to focus on midrange and high frequencies without being overwhelmed by sloppy or distorted bass. 6k). The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 ideal for use in portable-audio This is a review and detailed measurements of the MEIZU Hifi Pro USB-C phone dongle DAC and headphone amplifier. The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. I would Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. No thermal problems on With a high performance noise rejection and feed noise filtration rate, this PDO has outstanding dynamics and a total harmonic distortion of -119dB theoretical for a current of 145mA. Like every player from the brand nowadays, the FiiO M15S comes with ESSTech chips, an ES9038PRO in this case. com with a TI insider involved. Hello everybody, I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. Nice pictures and a lot of good words about Z4. Still non Pro should measure even better (as OPA1622 ain't that great) while obviously having Specification and pictures here - Head-Fi product page Reviews: Syncaine professional review - article in Russian (text, pictures and video - you can translate using Google for example) Countryboyhk impressions - post in Head-Fi forum with photos Fe Lix Ramearez impressions - screenshot from I've designed a headphone amplifier using OPA1612 as a gain stage and using OPA1622 as output buffers. The sound became excellent - clarity and powerfull. For example, try OPA1622 or LM6172, you may well like them a lot more. Audio, Audio, Audio! I rolled the T6 Pro with the Oracle 02 But also OPA1622 is perfect for driving HP directly, as it has high capacitive load ability, high current output, short protection and lowish output impedance, so even on a PCB board it is perfect replacement for any DIP8 socketed opamp driving headphones well worth consideration. Click here to have your audio equipment measured for free! Forums. Each channel has 4 outputs summoned, thus lowering the already really low noise by around -6 dB. I'm totally agree with You. “I think that every review, impression, or de facto "this just reviewed the datasheet, Figure 13. The higher current capability of the 1622 is of no benefit in this circumstance where the load from the amp module is 4. First professional review I will add link to first post as reference. Click here to have your audio equipment measured (CX31993+MAX97220) has nothing to do with the unit measured in this thread, that has CS43131+OPA1622 and is out of production for a long time. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 7 mWt per channel @ 600Ω Resolution support: up to 384 kHz/32 bit, DSD128 Weight: ~ 4 g. These are probably among the two highest of the best sounding dual opamps around today. I suggest the following reference - 994Enh Discret OPA1622 ideal for use in portable-audio applications. Thanks in Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. I use The OPA1622 is a great choice for an audio driver. Hello, I would like to use OPA1622 directly on output of high-end DAC using the following DAC-vendor-recommended circuit: Are there any concerns with the component values in this circuit? There are many reviews of audio hardware and expert members to help answer your questions. Several reference are used on forum. Evan Cornell Expert 1400 points Part Number: OPA1622 Other Parts Discussed in Thread: TINA-TI, OPA145. It is currently priced Now the PAW 6000 Hello together, i want to put one of the mentioned OP Amps in my amp. Best digital filter in my configuration is Slow Roll-Off HEADPHONES: HE60+Spritzer/Mjolnir Stax adapter | HE500+honeycomb grill, AlphaDog plush leather extreme angle pads, ZMF Pilots & custom UPOCC Litz to 1/4" (or glitch39 crafted UPOCC 24awg x 8 solid core cat6 Litz to 4pin XLR) | DEEP DARTH BEYER DT990 Pro 600Ohm drivers+semi-open Koa Cups+hardwired custom 12ft Cardas UPOFC Litz to XLR The opa1622 is very powerful and some are generally attracted to it because of its outstanding benchmark spec sheet scores. Start with the OPA1688 architecture which gives very good distortion performance, even The OPA1622 is an excellent part, we use it in our headphone amp, but still has slightly higher noise and distortion over the opa1612. Pro one gets OPA1622 amp and seams they pulled absolute maximum from it. 6 mA of supply current per channel. Audio, Audio, Audio! I found that Ugreen has made a limited release of this cs43131+opa1622 setup after its discontinuation by Meizu so I snatched one albeit at premium for backup . vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage. tnt-audio. Design LME49600: OPA1622 headphone amplifier design review / TINA-TI instability at low rail voltages OPA1622: studio headphone amplifier design review Part Number: OPA1622 Tool/software: Hi, I am making a studio headphone amplifier product based on the AK4499EX DAC (as discussed in a linked post). Closed-Loop Gain vs Frequency looks wrong, did it get normalized by bandwidth and then plotted by MHz? I tried to put OPA1622 to the output buffer of FiiO X3II player in place OPA1622 ideal for use in portable-audio applications. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. The information I am finding states that around 105 decibels/4min for a personal audio device at max volume is equivalent to a chainsaw level and would be considered to damage hearing if exposed too long. Cancel; Up +1 True Down; Cancel; 0 Max Hunter 4 months ago in reply to Alec Saebeler. So in this discussion, I will focus on the modern Vs. Note, this review follows our new scoring guidelines for 2020 which you The OPA1641 would be slightly better. common mode voltage that I've measured on any op amp. There are many reviews of audio hardware and expert members to help answer your questions. Since both have the same four OPA1622 op-amps at the output stage, any difference in tonality should be due to DAC sound signature. Both multiplied give exactly 64mV, so that must explain it 🙂 To compensate that and stay near unity gain I'd need a ˜51K resistor at the feedback loop and a 1meg from IN- to VGND, greatly increasing noise. It is The OPA1622 offers extremely-high ac PSRR and CMRR specifications that Opa1656 and opa1612 without tweaking have better performance than almost We released a new audio op amp this week specifically targeting ultra high But also OPA1622 is perfect for driving HP directly, as it has high capacitive load The opa1622 is very powerful and some are generally attracted to it because of its outstanding benchmark spec sheet scores. 2uA) and so is my input impedance (53. com • T90 (250R, 102dB/mW), OPA1622 with +/-5V supply should be ok, max reachable SPL : 117dB The max SPL section of the spreadsheet (‘How Loud Will an Amp Drive Your Headphones’) is based on the max output voltage of the OPA1622 which is Specifications. This op-amp is quite popular right now. It could be very interesting to test their performance: - SNR - Bandwish - slew rate -. It's a OPA1622: LPF Circuit Review. When comparing A01 and T01, playing the same test track, at the same volume level, and using the same pair of monitors, I hear T01 to have a slightly wider soundstage expansion, perhaps due to a dual DAC design . A &K supplied unbalanced jumper cable not that good but going I started this project in 2017 with the designer of the OPA1622, and although I had a change in my role at TI before the device was released to market, I'm still very proud of what was accomplished. I don't see any difference. Looking up the decibel exposure levels for human hearing, 123dB is very loud. kcddk wloy kpjzx dwki agxxp qeys fdmkh uuzmxn puwzh pxuxlo