Opa1656 vs opa2134 reddit. Jan 7, 2021 · So considering NE5532, LM4562 and OPA2134, OPA2134 gives best measured results in AIYIMA A07. Nov 8, 2006 · OPA2134 is more stable, as it is not too fast for Audio. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. We get lower current noise and better EMI resistence. 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. OPA2134 is probably a good choice in general. I was just curious what people's thoughts were for that opamp, and if they had any other…. Every amp. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211. Good decoupling, PCB layout, and circuit topology might be dominant. It needs an adapter though. Nov 30, 2021 · The output swing for Aol should be considered as it is different between the two devices. I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. Other Parts Discussed in Thread: OPA2134, OPA2604. . Feb 11, 2021 · Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. Oct 5, 2021 · Will try to look into the OPA1656 :), seem to be a common recommendation or idea for a replacement for the MC33078N. If you are inexperienced, there is a high chance you will ruin the audio board, also voiding warranty obviously. OPA2134 is good but it consumes more power than normal (8 to 10 mA per IC) and it is not rail to rail output. Oct 25, 2020 · Firstly, it is not easy to swap surface-mount opamps like the video shows unless you know what you are doing. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. Mar 17, 2019 · I purchased 10 OPA1656's. Dec 11, 2019 · The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Dec 30, 2022 · The sound quality of an opamp is strongly dependant on it's implementation. A quick snapshot of the OPA1656 performance specs: 2. I don't care about listening tests or something else, just want to use the technical better one in my amp. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. 4V. Dec 30, 2022 · The sound quality of an opamp is strongly dependant on it's implementation. Depending on the actual application circuit, there are alternatives with better noise performance. Find parameters, ordering and quality information. It offers exceptional performance in almost any audio application. Nov 30, 2018 · The opa2134 already installed is neutralish/slighty bassy. Dec 28, 2020 · OPA2134 as a phono preamp? I know it's a really quiet FET opamp, but it's usually recommended to use bipolar input amps when dealing with low impedance sources such as a record player. Review. Opa2604 is slightly warmer. Two identical gain 11 amplifiers were tested. That seemed like a reasonable target for the supply current of the OPA1656 as well. And it is a JFET opamp, which is always preferred by myself in the positions where slightly higher voltage noise of the opamp is negligible, like here. 3V inside of each supply. The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. It is a simple bipolar PS using a 20V zener reference and voltage follower (schematic below). I plan to just swap the 20V zeners (D908/D909) with 16V ones. com with a TI insider involved. OPA2134 is more used and more liked, than almost any other JFET op ( Maybe still TL072 is most used, but it is far from OPA2134 in quality )-----OPA2134 is probably the most used DIY Audio op, all categories. But $40-57 each. Mar 17, 2019 · OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). OPA1642 is its replacement despite the lower type number. Prodigy 205 points. The power supply output is +/- 19. TI’s OPA1656 is a SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. Part Number: OPA1656. 000. Secondly, OPA2604 is one of my least favorite sounding dual opamps. 4 days ago · The replacements (LME49710NA) have a lower maxium voltage spec, 36V rail-to-rail vs the 44V of the preamp's stock NE5534 and NE5532. I like opamp rolling, but the dac x6 opamp socket is for the i/v section of the dac and the power supply is very limit (3 parallel icl7660 generating a negative rail for the tpa6120+op275 and the opa2134). consists of 2 x 10 op-amps in parallel and the two 10s are balance connected. 9nV/rtHz broadband voltage noise. Feb 11, 2021 · Below is a comparison between OPA1656 and OPA1642. I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. Dec 6, 2018 · Tone controls? DAC reconstruction filter? The better FET-input op-amps are expensive because they are laser-trimmed and prices can be crazy. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. If a FET-input amplifier is required for low bias current (such as for a phono preamp), you might consider the OPA1642 or OPA1678. Easiest is to replace LF351N and LF353N for the OPA134 and OPA2134 just like the shop in Idaho did. Dual customzied solution will give unmeasurable distortion (possibly -180db). May 20, 2023 · My OP1656 OpAmp Review. I've been doing a bit of filtering with an OPA2134. My first set of separate OpAmps, ushering my foray into the brave new world of OpAmmetryLoL Dry, crisp, analytical and non-intrusive (as compared to the bold NE5532) is what I would describe this opamp as. yfdqovopxrcvobrtmmudpesvopqnlepwulidhcxqimnstfuerzqed
