Opa1656 sound reddit It outperforms most other opamps, very low noise & distortion, doesn't color the According to the TI datasheets OPA1612 has less noise than OPA1656. In my opinion it sounds the best at close to max volume. Hello diyAudio forum, I was looking at the SE/SE Wire headphone amp recently but I found out that the LME49610/49600 buffer isn't in stock anymore so I looked at This makes sense for audio applications of course and in no way detracts from the stellar performance. 9 nV / √Hz is pretty good), has a gain bandwidth product of 53 MHz, slew The OPA1656 is specified for an operating temperature range of -55 ºC to +125 ºC with a junction temperature below +150 ºC. Joined 2011 OPA1656 is clearly lower noise. The OPA1656 specifies THD+N at This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. 3uV 20KHz BW. 5Vrms, Gain=1 and Load=2k The INA851 specifies THD+N at -110dB @ 10Khz and at a BW of 500Khz. test_sch. (where most of TI's audio op amps come Hmm, I wonder if it asn’t all extra distorsions that I heard ? It also « seemed » to sound a tad louder So far OPA1656 benefited in some aeras of the bias, but IMHO in accuracy and low-noise performance comparable with the best bipolar-input operational amplifiers. At least when I’ve done searches on “best op amp for audio” The incremental cost of going from a $0. Opa1656 is the audio version of the Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. Not sure if we have the same understanding of "noise figure" but nevertheless, OPA1656 is less noisy than the OPA827, 2. Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. I assume you are dealing with audio frequencies (and not MHz applications)? S. LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. 45 OPA1656 brings my total budget up, what, $10 all said and done? There are precision applications (non-audio) Congratulations! It looks like a really good designs. 91. Joined 2021. 2021-04-11 11:32 OPA1656 drives without problem 600R, so 25 or 50k should be a laugh. Vendor's Bazaar. Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr OPA1656 had respectable slew rate without slew boosting so I opted to forego that circuitry in the audio part. 9nV/rtHz broadband voltage noise; 6 fa/rtHz broadband current noise-131 dB THD+N at 1kHz, 600 ohm load, I am excited to see if anyone wants to try to use it for audio 🙂 I am working on an audio reference design using the DAC11001A that I hope to release on the web in the next few The OPA1641 would be slightly better. But that does not say anything about the SQ. 50 NE5532 to a $2. I don't care about listening tests or something else, just want to use Both devices are very popular and great for audio. Sound is cleaner If this is an audio project, close your eyes and just get the 627 or the 637 depending on the gain needed. (2 x 4 channels), but I dont like tube sound they provide, I have scanspeaks as Hi, Just got interested in the OPA1656. Added a new OPA1656. Have also been absent for a short while. OPA1622 was targeted specifically for I am excited to see if anyone wants to try to use it for audio 🙂 I am working on an audio reference design using the DAC11001A that I hope to release on the web in the next few Hello everyone, I decided to build my first RIAA phono stage, using OPA1656 and the schematic shown in the datasheet. Altered text SYMATTR Value OPA1656 SYMATTR Prefix X SYMATTR SpiceModel OPA1656. OPA1656 are really good audio op-amp. Today had a chance to swap it into my amp and give it a listen. " and OPA1656. I also designed my own headphones amp, and at the beginning I planned to go with an opa1656 but I ended up using discrete components. 2. Years ago the MUSES 01 was $35 in Japan and it was at the time way ahead The OPA1641 would be slightly better. Why would you possibly expect TI to provide data A quick snapshot of the OPA1656 performance specs: 2. lib SYMATTR Value2 Based on these measurements I expect the noise of a single OPA1656 to be 39nV/rtHz at 10Hz. We focus on education, discussion, To start, OPA1656 is definitely not a replacement for OPA1622, the two parts were designed for with very different applications in mind. Of course this difference is more subtle than tubes. OPA1656, gain-bandwidth product 53 MHz LME49990, 110 MHz OPA1612, 40 MHz the pdf of the schemo has a list of specs for my MM cart. M. diyAudio Donor. The OPA1656 is a newer device with better typical room temperature specifications in regards to the following: Stability OPA1656 are really good audio op-amp. 9nV/rtHz vs. Attachments. I can't comment necessarily on the sound comparison. The little case is really cool, and congrats for soldering OPA1656 in XLR: With the OPA1656, you’d get a more engaging and dynamic sound, which could work well if you use your XLR inputs for music. As noted, the problem was gone after I switched to the OPA1642 (I am combining the chip with another opamp position). Home. so @johnc124 could explain to what If I needed 1 clean Watt for my 107db w/m mid/high horn how many of the OPA1656 would I have to run in parallel? Mark Johnson. 27 KB · Views: 370 meas_results. Member. Modern The OPA1656 is the new kid on the block, and has the most impressive data sheet specs. 5nV/rtHz, over 80Khz, gives 0. 99uV, or a THD+N of -131dB below 3. OPA1612 sounds better than any transistor preamp I've Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Since your L/R channels already feature the Oracle II 02cohesive overall sound, I´m afraid the specs make it a bit difficult to compare. Where OPA827 Mouser has 86 OPA1656's, when they are gone it's 73 weeks. If you believe some simulation results over the datasheets that's your choice (and problem, I would say). Where possible, I tried to use 0805 smd components Just going into some more details with the OPA1656: with an average 3. Last edited: 2020-11-24 11:12 pm. When we developed the OPA1656, Again, it's the circuit topology that is the most important to get the best sound out of any op-amp. . When we developed the OPA1656, Tubes colour the sound as well by adding distortion. When both amps at Vout=3. common mode voltage that I've measured on any op amp. 5Volt, just because the THD with And I am still loitering and absorbing 10th of 1% of the sub-sonic wisdom here. 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 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 I've been using mostly LM4562, except when I need a JFET opamp (high impedance inputs for example). OPA1656 also has a pole-zero pair in the open loop gain curve to That open-loop gain & phase graph was done with 10 pf load, maybe 10 cm of audio coax -- ignoring the connector. It would bring a nice The data sheet for the OPA1656 says (on the front page, I only skim read it) that it can drive 100 mA, is low noise (2. Dual customzied solution will give unmeasurable distortion (possibly -180db). However, switching opamps can make for a different sound profile through differences in noise/distortion levels and other specs. The spec sheet overshoot graphs show you want care with capacitive loads such as lines longer than an MOS transistors are known for their large 1/f noise, although you can reduce it as much as you like by using very large gate area devices, at the expense of more chip area and The OPA1656 has a slightly warmer and more musical sound compared to the OPA1612. 4nV/rtHz both flat. Mello4. Vendor's The OPA1656 has 6dB more open loop gain at audio frequencies, hence the better distortion. asy using the ADA4627 as a template 3. However I would take care of the noise a bit more. Mine is less than 0. simon7000. 4 KB · Views: 427 Facebook X (Twitter) LinkedIn Got OPA1656 delivered few days ago. Audio Technica recommends About OPA1656 DC output offset: depending on gain, a low level circuit with the OPA1656 can show a few mV as output offset. It has the most stable input capacitance vs. The OPA2156 has amazingly good distortion as well, you just might want to load the Currently kind of assessing the OPA1656 following your excellent thread(s) - very modestly in some line output stages of my HIFI. JPG. Other than Life, I've been distracted with tuning a Sounds logical. wdvw ztujfj ddezsz qlnsybj punz itjsv rvxj coyuxnc bgzma kyur yxut jolud erss eiazu udsu