Opa1656 vs opa2134 reddit. Switching op amps is likely to cause as.
Opa1656 vs opa2134 reddit Phân tích so sánh: OPA1656 VS OPA2134. I can't really hear difference this time. In some respects I think of the LM4562 as a somewhat upgraded NE5532. com and all are unity gain stable. By the way, Victor recently switched from LM4562 to OPA1656 because it has even less THD. 2020-01-05 11:05 pm #15 Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. Gallery Archive OPA2134 and a few others. Source & Line. Currently, I VIN(DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous TA Operating temperature –55 125 °C TJ Junction temperature –65 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. 5dB Distortion: ≤0. Thread starter Tieftoener; Start date 2002-12-18 4:47 am; Status Not open for further replies. MC33078 Op Amp Upgrade Recommendations. It is a fine sounding amp. I measured again the noise of OPA1656 vs OPA1642. I have used the OPA2134 as the first gain stage in a number of high quality DIY phono stages, with the LM4562 in the second overall gain stage. Home. png. OPA2134 or OPA2604. There are many dual opamps to choose from. WTB: Something a little better than OPA2134s. the TI's LME49860, LME49720. OPA1656: High-Performance CMOS Audio Op Amp. 4 mA, max. It's a Im interested in op amp rolling for my amp since its not expensive to try out and I was surprised to find a lot of variation between them, the amp has a very simple circuit so my results could be more siginificant than with other amps. OPA1656 se ističe kao priznata audio operativna pojačala proslavljena za svoje izvanredne ultra-niske buke i minimalne mogućnosti izobličenja. diyAudio Community diyAudio Store. Facebook Reddit Pinterest Tumblr WhatsApp Email Share Link. One of the best. +Gain Bandwidth. I was really looking at the opa1656 but it seems like it’s going to take a month and a half to get here, all the soldered adapter ones on eBay, which i don’t know if I want to wait. In 2022 one would suggest OPA1642 and OPA1656 methinks. Reddit . Seems that with the cheap good NE5532P the THD+N decreased from 0. Each part has its specific specs tailored for the application. R. Facebook X (Twitter) LinkedIn Reddit Pinterest I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. AD8610 . Very nice presentation in the link! OPA2132 and OPA2228 are really good sounding op-amps. F. common mode voltage that I've measured on any op amp. (Opa2134 is not broken in at all, so it will most likely get better w/time) The base is much better from the 2134, but it does not seem to be as powerful on the output side, but could just be the break-in needed. 5 Euro OP275 ~ 3 Euro OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. AD8620 vs. Audio, Audio, Audio! Audio Newbie/Beginner Technical Forum. Thread starter bmwrob; Start date 2002-05-05 8:35 am; Status This old topic is closed. After 3 months, my boards finally arrived! Headphone amp completed! Related Topics DIY It's a two-stage design, with one OPA1656 taking care of amplification and two OPA1678 op-amps as output buffers. I've had the Burson V5i, and the V6vivid and I have no space to put a sparkos labs opamp single or dual channel. If a FET-input amplifier is required for low bias current (such as for a phono preamp), you might consider the OPA1642 or OPA1678. Community resources, and extensive FAQ for players Reddit's original DIY Audio subreddit to discuss speaker and amplifier projects of all types, share plans and schematics, and link to interesting projects. 2) Buy a real Meanwell 24v PSU, then adjust the voltage all the way down to roughly ~21. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. 9/+8. Thread starter rhythmsandy; Start date 2012-08-24 7:28 pm; Status Not open for further replies. That unit came with the Sonic Imagery's 990ENH discrete operational amplifier ("opamp") in the buffer stage (pre-amplifier). The sound quality comes from the entire circuit, not the op amp. : about 1mV vs. TI recently introduced two devices worth looking into, updated BUF634A and OPA1656, both available as prototypes directly from TI. It stands out by achieving the industry's lowest voltage noise, distinguishing itself notably from the OPA2134, especially in audio scenarios where minimizing noise is an The OPA1656 is a Burr-Brown™ operational amplifier (op amp) designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Sound Characteristics: OPA1656: The OPA1656 has a slightly warmer and more musical sound compared to the OPA1612. Take a look at this figure from its datasheet. OPA1656 Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. I still prefer the OPA2604 while both aren't interesting for me. OPA134 Posted 10th February 2012 at 11:49 PM by rjm Updated 11th February 2012 at 03:48 AM by rjm. The gain is 6db lower than the A07, which is noticeable, but not a big deal for me as both offer more power than I need. reReddit: Top I use an A07 with a Drok 48v, 10 amp adjustable power supply, and run Dali Spektor 2 speakers with it. I'm also ordering OPA2134 opamps to replace the NE5532's that are stock. Get the Reddit app Scan this QR code to download the app now. 43AGFKM, respectively. TPA3255evm) 007Shorty; Feb 3, 2024; DIY Audio Forum; 2 3 4. but with some opamps i have reduce soundstage (AD823, OPA2134). Total Noise of OPA1656 vs OPA1612. Members Online. Same with the OPA627 though. the SS V6 (510mV), but all of the above opamps were having about the same THD, just the noise I tested three op amps in the circuit: NE5532, LM4562, and OPA2134. Gallery Also, I typically preferred simplicity in the op amps I developed. I've only used it in a MINT, but I liked it substantially better than the 2132 and almost as much as the AD8620. Or check it out in the app stores TOPICS. ) 85 votes, 23 comments. Theme - Light; I am wondering if there are certain parameters that will make popular opamps like NE5532, LM4562, TL072, OPA2134, and others, to give the best performance as far as THD and sound quality? When I studied I tested the opa2134 vs the ad712 that were stock. diyAudio Curiously enough it seems to sound its best in combination with the OPA2134. But deep bass and transients seem more punchy in the OPA2134. Both (I believe have Fet-inputs) There’s also 2189 CMOS audio op amp has impressive specs of an impressive was designed for MUX friendly DACs and multichannel dacs! I had a hard time getting this chip, a friend living in Tokyo sent me some after I pestered him to get me some - it was the JRC MUSES website that got me all excited to get hold of these - I didn't study the datasheet beforehand - dumb! The XLR was in the end recommended the OPA1656, since the signal passes the Oracle´s anyway. 1 Figure 3-4. The OPA1688 even beats it on noise. OPA1656 Phono Preamp: Split from OPA1656 thread Buggle2 Riaa board. In fact, dual OPA627 on Browndogs would have been something to consider as well. Analog Line Level. 5 mA. com with a TI insider involved. 2002-12-18 4:47 am Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. The OPA1656 is the new kid on the block, and has the most impressive data sheet specs. the O2 dScope measurements that NwAvGuy posted. Nó nổi bật bằng cách đạt được tiếng ồn điện áp thấp I want to drive a non-inverting OPA1656 from the wiper of a volume pot -- which means a range of source resistance for the OPA1656 from 0 to <del>Rpot/2<del> Rpot/4. Mark Tillotson. interesting . My pref is to upgrade opamps in the pre/DAC stages as that output section will have the biggest influence in sound char. 2011-04-17 4:06 am #13 2011-04-17 4:06 am #13 NE5532: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. Design & Build. OPA1656 had respectable slew rate without slew boosting so I opted to forego that circuitry in the audio part. Some people claim swapping opamps can, at best, do nothing to improve the sound and, at worst, can cause oscillation. The LM4562 is a dual-channel op amp, meaning it contains two Get the Reddit app Scan this QR code to download the app now. 5amp psu and opamps rolled from NE5532(people say they are fake anyways) to OPA1656. Finally got around to some more comparison listening with the Sapphire headphone amplifier. OPA2134 Drop-in replacement. Noise is almost same as with LM4562 and there are no problems with distortion. Theme - OPA1656 menonjol sebagai penguat operasi audio yang diiktiraf yang dirayakan untuk bunyi bising ultra-rendah yang luar biasa dan keupayaan penyimpangan minimum. Don't let power supply current limitations get in the way of performance. FET on the OPA1688, but strangely it is actually higher at 10nV/sqrt(Hz). Reddit's Loudest and Most In-Tune Community of Bassists Electric, acoustic, upright, and otherwise. But,the OPA2134 might be a suitable upgrade. Thanks Rob . Joined 2001. An op amp is part of a larger circuit and is chosen because its specs match those required for the circuit. I ended up staying with this one. Promo khusus pengguna baru di aplikasi Tokopedia! Di salah satu gambar ada sedikit overview dan perbandingan OPA1656 vs OPA2134 yang saya comot dari datasheet-nya. These are low-end jellybeans - and even high-end jellybeans like Ti ne5532, jrc2068, tsh22in, and others will improve things a lot. Something better than the LM4562? diyAudio Community diyAudio Store. Ovaj članak pruža sveobuhvatno ispitivanje tablice pojačala, njegove konfiguracije PIN-a, potencijalnih aplikacija i definiranje funkcija. In all, I will say the changes are noticeable, but not earth shattering. The OP1656 is the exact Below is a comparison between OPA1656 and OPA1642. Opa2134 isn't a bad opamp, but I don't like if in lpf sections. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. This article enforces datasheet, pinout, review, applications, features, and more details about OPA1656 Audio Op Amps. 2. I compare, also side by side, to more sophisticated DACs than you've mentioned - more like AudioNemesis DC-1, CEC TL51, NorthStar M192, Theta DSP Pro Va, Accuphase DC801. I also would like to work if any one of this is even avaible to be used with my amp, dont wont to destroy anything :). Joined 2002. 6v. There isn't enough info about the topology of the input stage either that could lead I have to say that this opamp has a very well input stage symmetry which is better than opa1612, opa2156, opa1656, ADA4898, and many-many other opamps 3-4x more expensive. 0026% vs. I used to have a comparison written up between the 2132 and 2604, but I don't know where it is anymore. In production pedal circuits I've seen it in the Diezel VH4 and Keeley Magnetic Echo so far. Car Audio. The OPA1656 specifies THD+N at -130dB @ 10Khz and a BW of 80Khz, why is that, how does the spectrum look beyond 80Khz ? Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. In both, I swapped out the 5532 op amp for an OPA2134. Volume control on the V3 is more subtle control over lower volumes. -Category Forums. 68K subscribers in the diypedals community. Part Number: OPA2134. Opa1656 has good phase response at high frequency. Vendor's Bazaar. Second harmonic decreased with about 16dB and the third one with about 2dB; 1. This gave me a chance to Beli OPA1656 / OPA1656IDR Texas Instruments TI Ori Original Asli Elantech - TERSOLDER di ELANTECH. MUSES8820 is the best, IMHO. 4/+0. TL072 opamp replacement. it is better than OPA2134. P. Atribut ini menjadikannya sesuai untuk kedua -dua tetapan audio dan perindustrian. Or you can go hog wild and try something like an opa2134, lm4562, etc. musical. Xavier. (If I am not wrong OPA1656 is a really modern OP Amps from March 2019 vs 2017 I would like to see the OPA1656, a burr brown sound plus chip. 5, Orpheus Aurora 2. So two op-amp sections are paralleled to increase the current capacity. i have a a07(tpa3255 also) with 48v 7. As i stated above, i fiddled around a bit with TL072 vs. There are additional poles and zeroes in its frequency response, which introduce additional lumpity bumpity behaviors in the gain-vs-frequency and phase-vs-frequency plots. Any q’s. OPA2604 is one of the few op-amps having +24 -24 max supply voltage. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. Stupid question from newbie, have twelve OPA2134 in my amplifiers in dip8 container. Avoid LME49720– fr some reason, it disables the subout of the A07- incompatible circuitry most likely. But $40-57 each Careful swapping in a higher bandwidth part, they can oscillate in "old" circuit designs and not all parts are unity-gain stable. if you type the serial number [and burr brown] from the possible fake into duckduckgo, it returns opa2134. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. Again, from known dealers or vendor like Digikey or Mouser, not Ebay or Aliexpress Facebook Reddit Pinterest Tumblr WhatsApp Email Share Link. A quick snapshot of the OPA1656 performance specs: SoundPlus? ultra-low noise and distortion, Burr-Brown? audio operational amplifier 8-SOIC -40 to 125 OPA1656 is an audio operational amplifier featuring ultra-low-noise and low distortion. (The measurements are of two halves of the same DAC chip, one half with NE5532 and the other half with OPA2134. If you are into Fet the OPA2641 is even better then the OPA2134. SoNic_real_one. 0032% Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. OPA828 / OPA2828 vs OPA627. But after swapping in the OPA1656 into the Popping DAC, there was an significant improvement in Detail. I'm still waiting for OPA1656 in the mail. Theme - Light; Decoupling/bypass & signal path capacitors for op-amps (NE5532 in Aiyima A07 vs. Amplifiers. OPA2134 replacement on Topping D10 - OP-Amp rolling . I. Di atas kertas boleh juga lah spek-nya. 4. some manufs have a searchable database of their serial numbers so Did you tried OPA1612? I wish to hear something about OPA1612 vs LM4562 M. OPA2132P vs OPA2132PA WHAT'S THE DIFFERENCE? diyAudio Community diyAudio Store. S. Its FET input so won't give you any current noise issues. Aiyima have confirmed they are the same analog linear potentiometer as the V3 but the sensitivity of the A07 MAX is twice that of V3, so while the A07MAX volume is nicer than previous Aiyima Amps but IMO the volume on the V3 is slightly Personally, I like the ne5532 with the cs4398(about the same detail level as the opa2134 subjectively but smoother sounding in my opinion). I listened to OPA2134, LM4562, and NE5532, and OPA2134 sounded the best. 7 mA quiescent current is typical of the OPA627, for the OPA2132 it should be typ. I've been doing a bit of filtering with an OPA2134. If a bipolar-input amplifier can be used, then you might consider May I suggest the OPA1656 as a possible substitute to the tried and tested LM4562? Just found a space to test AIYIMA A07 with OPA2134 opamp. Stock V3 is just flat compare to stock A07, this is tested with Topping D30 and Whatmough Emotion 6. It's a jack of all trades so to speak, and this is the op-amp I was able to compare and contrast the V6 Classic to. All are direct replacements, nothing else need to be modified. I also refurbish large format recording consoles. That is about it for now. It is difficult to say which one is better. 2001-10-08 9:07 pm #2 2001-10-08 9:07 pm LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. BDWoody. opamp rolling seems to be a must with V3, I settled with Muses02 after testing out Burson v5i, v6 classic, opa1656, opa2134. These replacements sound clean, crisp and dare I say it. 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). 4 nV/rthz. Member. That op amp is not all that bad. 2014-03-21 6:33 pm #4 2014-03-21 6:33 pm #4 Randy62 said: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. The Aiyima A07 sounds more forward in the mids and a little less refined in the treble. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. The OPA1656 is a newer device with better typical room temperature specifications in regards to the following: Stability Dry, crisp, analytical and non-intrusive (as compared to the bold NE5532) is what I would describe this opamp as. CMRR is not a big issue. OPA2134 is more stable, as it is not too fast for Audio. Gallery Originally Posted by mikeg88 /img/forum/go_quote. Theme - Light; So in this discussion, I will focus on the modern Vs. Thread starter JoeBob; Start date 2002-01-07 4:08 am; Status Not open for further replies. I'm a cheapskate, so i The OPA1656 needs at least 4. New BUF634A has higher slew rate, wider BW and decreased quiescent current in wide-BW mode, and is cheaper than original 634 The OPA2134 is very ordinary, I consider it a side step to the NE5532. I was just curious what people's thoughts Both devices are very popular and great for audio. 5 KB · Views: 960 syn08. But I can still easily hook up the buffer b depends on the amp your using fosi makes a ton , assuming its the TB10D (upgraded version) with a tpa3255 it will just give you headroom that most people wont need. I AD8620 vs. Solid State. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. Replace your current fake* NE5532 Op Amps with real Op Amps like the OPA1656. With that being said, there will not be a huge noise performance difference between OPA1656 (~4nV/rthz) vs OPA1678 (~5nV/rthz) when the thermal noise is already 11. Forums. 3. bad is a little different: 9AK52FM vs. OPA1656 được chế tạo với kiến trúc CMOS điện áp cao, tăng khả năng thích ứng của nó đồng thời nâng cao hiệu suất tiếng ồn của nó. So I don't know. Or check it out in the app stores If you get an opamps within the specs of the original one and it's an updated one like opa1656 opa1692 etc then having newer tech is always fun and as many can attest sound better. LM4562, OPA2134, MUSES8820, NJR4580DD & JRC5532DD- are all cheap enough to experiment w/. The opa1656 this time is smoother than the opa2156 in previous test and opa1612 has better bass than previous. Community resources, and extensive FAQ for players new and old. 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. Audio, Audio, Audio! I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). OPA2132 is not identical to OPA2134 " except offset" as Groner claimed. However, there are several op amps that are often considered for audio application like NE5532, OPA2134, LM4562 and more. A lot of guitarists I've been playing with recently have been Opa2134, 2 pieces Opa2604, 4 pieces Ad827, 4 pieces And a couple of NE5532. It consumes the same power as the OPA2134, which is used all the time in those builds, but has significantly lower noise, distortion, and much Hello, i just compared my current favourite opamp opa1656 vs the much older opa627 (its a dual module from audiophonics, the IC`s are "used" if this matter but as long they function correctly i only see the benefit of them being already burned in ) i tested these with the Aune X8 XVIII on first sight i would say the opa627 has these attributes compared to the opa1656 Here’s a great article comparing opa2156 CMO vs opa1612. OPA1656 ~ 2. gif Okay so I've been comparing the micro stack, ultra micro stack and the basic desktop amps. The NE5532 is used everywhere as its sound profile is designed to catch people's attention. 5 volt supply, 100 nF and other bypass caps The format of the good vs. When the original OP is Bipolar(like NE5532 etc) we can most always replace with FET or another similar Bipolar OP. I guess what puts me in a dilemma is that Burr Brown branding behind the well known OPA2134 vs. Upgrade for NE5532. They do sound differently on different type of loads and i'm not a golden ear. The THD+N of the 1688 should be better too, best I can tell comparing the datasheet graphs vs. It will oscillate at a high frequency, and (though inaudible because of the high frequency) will distort audio in a very atonal way. diyAudio Community diyAudio G'day all, an interesting thread. If you still want to maintain low closed-loop output impedance, there are a number of circuits that close the loop around the output resistor at audio frequencies. TI has characterized the THD vs Rs for a lot of its recent devices, but alas not the OPA1656 (at least that I could find). OPA1656 on an adapter PCB. OPA1656 ( modern clean smooth sound, nice "deep" bass, which is "the" pro for me for this opamp ) OPA2134 - quite good OPA2132 - quite good NE5532 - OK but not special Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. Probably the circuit is better than the first one or something went wrong or I was just imaging all of those. DIY (Do-It-Yourself) Discussions If the orginal OP is a FET (like TL072, OPA2134 etc) we may be careful sometimes NOT possible to replace with Bipolar (like NE5532 etc). 0002% Load impedance: 16~300Ω Maximum output power: 150mW for SE, This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. So I can use any one of these ( one at a time !). Drop in replacement for NE5532? diyAudio Community diyAudio Store. DIY (Do-It-Yourself) Discussions Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. Replies 62 Views 6K. 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 Comparative Analysis: OPA1656 vs OPA2134 The OPA1656 is crafted with a high-voltage CMOS architecture, augmenting its adaptability while also elevating its noise performance. Forum Style Contact us; It is a bit of a science project, but I am seeing nice audio performance and I am using John's opa1656 as the primary output buffer. Fast Eddie D. I am feeding the U3 with an Audioquest Red from the PC and have no issues at all, very sweet, detailed sound, well balanced and a touch of warmth. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. I had the chance to gather up a selection of opamps from my parts bin, including BB OPA2604, OPA637, AD823, LME49860, JR4556, Muses8820 and 8920, and compare them against each other along with a Burson V6 Classic (thanks to them for sending me an evaluation). I plan to get the brown dog adapters and try the opa 627's soon. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. So, save me that drama about a $50 DAC. High Performance Audio Operational Amplifiers with FET inputs OPA2134 3. I run OPA1656 op amps just for the hell of it and I also have it ventilated by using a simple OPA1655 , OPA1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. The NE5532 is perfectly fine. OPA134. I don't like OPA2134 much, so something like AD8620 would have been another good comparison to Burson. I don't care about listening tests or something else, just want to use the technical better one in my amp. Composite amplifier is one of the best application with opa1656. vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage. ah so much other untested opa's 1678 still on my list ina1620. Gaming. It also depends on the use case to use it. The AD826 seems to be smoother than the OPA in the voice range. I guess I am measuring the CS4392 chip more than the op-amps. Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. Parts. Artikel ini menyediakan pemeriksaan komprehensif mengenai lembaran data penguat, konfigurasi PIN, aplikasi yang I would not suggest using an OPA1656 in a headphone application without a series output resistor. Audio, Audio, Audio! OPA1656 has lower voltage noise in the mid-band (but higher at LF) than MC33078 so might be worth a look. 77K subscribers in the diyaudio community. Ovi atributi čine ga idealnim za audio i industrijske postavke. I can't say for sure. In (LM49720, OP275) reduction is low. I can create a new thread on that when I release the design guide. Compare using a fet opamp, opa1656 vs a opa2134, I see little reason why one would choose a opa2134 for a new design, maybe that's why TI asks so much 🙂 because they want you to use the new tech, but it's probably the cost of the mfg process for that tech vs the new processes. In fact when the originals were first installed I remember thinking that they didn't sound as good at the LM833's in there previously! But these OPA2134's sound nothing like the original ones. B. Ok. The LM4562 is a high-performance audio operational amplifier (op amp) manufactured by Texas Instruments. Recently I reviewed the Nord Three SE 1ET400A Dual Mono Stereo Amplifier. OPA1612 too Replaceable OP AMP chip: OPA2134, OPA1656 and other dual OP amps Signal-to-noise ratio: ≥115dB Frequency response: ≤0. Valheim; Genshin Impact; Minecraft; Pokimane; Halo Infinite; I like the OPA2134/4134 better than the NE5542 for hobbyist stuff - runs off 5v, great audio quality, not too expensive. Now, we run through a hand calculation to find the total noise of a simplified audio system. Likewise I would have thought that an OPA2134 is an OPA2134! Other Parts Discussed in Thread: OPA1612 , OPA1642 , RC4136 I use these amplifiers for pro audio. For this example, we are using the OPA1656 in a non-inverting configuration with a gain of 40 dB or 100V/V. It's best use as an alternative to opa1612 when noise is not a big concern. Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656 Hi team, Is it possible to drop-in replace OPA2134UA/2K5 with OPA1656IDR? Best regards, Antoine TI E2E support forums G'day all, an interesting thread. Facebook X (Twitter) Reddit Pinterest Tumblr WhatsApp Email Share Link. This probably isn’t the answer you want, but I’m going to present it to you anyway. Misc. diyAudio older NE5532 from Philips with ceramic packing is better warm,i use opa2134 and found same problem like you,sound is too drier,better high but lost in mid and low bass Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. Gallery Archive Articles Haha, in fact, it makes you wonder if a "better" opamp will yield just as much (or more) improvements over Burson. Gallery I noticed someone talking about an OPA2134 as a replacment. just going by specs it should be better but i dont hear much, its def louder tho so if I really like the 2604. Audio op amp comparison NE5534A vs. mazdapowered. OPA1656 also has a pole-zero pair in the open loop gain curve to boost the open loop gain at audio frequencies (hence the 53 MHz gain bandwidth product). Now the results are pretty much identical which is not what I was expecting. OPA2134 Stability. 6SL7 tube SRPP gain stage with voltage shunt feedback. My favorites at the moment opa1642 and this one opa1656. Although I am a fan of the OPA2134, I still have very considerable respect for the NE5532. OPA2134 (DIP, Black trace) +2. lme49713 vs opa627 vs AD815 vs opa2134 vs opa1612 vs opa2836. Facebook X (Twitter) LinkedIn Reddit Pinterest That's interesting, because in my little opamps rolling experiment it did not do very well. reddit's community for DIY Pedal Builders! Skip to main content. Are However they measure and perform worse than SOTA audio ICs like lme49720, opa1612, opa1656 etc. Feb 8, 2024. Like many opamps, the OPA1656 does NOT have constant gain-bandwidth product. 7 mV 0. It works with no problems. Since I am not interested in the V6 Vivid Dual that it comes with. OPA2134 gain stage with voltage series feedback. 5V to run (I'll assume you're using at least 5V). 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 OPA2134: High quality audio op amp, usually used when a very clear and transparent tone is needed. These are just the ones I have experience with and which are arguably the more common ones and there are far more around to try. OPA2134 especially in the modulation section, and i changed some things on the Kay to soften the output. To recap: the circuit has an open loop diamond buffer output, so the op amp is just providing voltage gain. Today I would consider OPA1656, a very good SMD CMOS opamp. This next bit depends highly on your chosen topology for your transconductance amp, but in a worst case, say you had to source 100mA into a near-short to ground. Any suggestions would be apprecited. Digital Line Level. Can I just swap it on OPA1656 with just a dip8-soicd switch? Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. But I would still like to see the OPA1656 This is my first time doing anything DIY with audio. Additionally, 5V isn't really enough for the OPA2134. X. Joined 2008. It is a really nice-sounding chip in the right place, but man it is expensive and you can get nearly there for a lot less in trouble as well 251 votes, 32 comments. Reactions: IamJF. I would say it depends on what circuit. Audio, Audio, Audio! Amplifiers, Phono preamp, and Analog Audio Review. PRODUCTION DATA. Make sure decoupling is done well. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. It may or may not sound at all noticeably better than a TL072, it depends on the circuit and application. Posted by u/iansheridan1978 - 30 votes and 13 comments The LM833 was released way more than 20 years ago, and if memory serves, OPA2134 was released around the year 2000, and LM4562 around 2006. I was previously compares this OPA1622 with the other op-amps such as OPA2134, OPA2604, AD823, AD712, LME49720NA, and LM4562 which none of them, in this headphone amplifier application can match with The opa2134 already installed is neutralish/slighty bassy. The OPA2134 doesn't have a specific ground input, just a V+ and V-. Chip Amps. The OPA1656 Will try to look into the OPA1656 :), seem to be a common recommendation or idea for a For this use Xduoo said "OPA's used on the RCA circuit is OPA2604, it is better OPA2134 is probably a good choice in general. Gallery Archive I did check OPA1656 in voltage regulators and didn’t like elevated LF noise (compared to JFET opamps). jean-paul. To check if they will match the previous ones that were made with balanced 10x paralleled op-amps. OPA2604 is a little bit faster. Open menu Open navigation Go to Reddit Home. Will it harm the rest of the amplifier? The one usually put forward as best is the opa2134 . Noise OPA827 vs OPA1656. Last edited: 2021-02-24 7:39 pm. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. If you want to reopen this topic, contact a moderator using the "Report Post" button. I personally have the DT 990 and have tested it with the OPA2134 and find it requires a power supply of around 8V+ for it to achieve volumes higher than what a desktop PC can deliver. Gallery Archive Articles. If you have an electronic circuit design or repair question, we're good; but if this this a general question about electric motors, motor capacitors, fans, servos, actuators, generators, solenoids, electromagnets, using motor drivers, stepper drivers, DC controllers, electronic speed controls or inverters (other than designing or fixing one), please ask in r/Motors. Don’t hesitate. 9-nV/√Hz voltage noise density and 6-fA/√Hz NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. I obtained some OPA2134PA DIP op-amps from a friend to test. I have both. Review of LM4562 IC 1. The FET-input architecture achieves a low 2. General Interest. 2023-06-14 9:52 pm Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. "An enduring addiction that compels me to invest more and more" Cans: Sony MDR-MV1, AKG K701 IEMs: Elysian Annihilator Ti (2023),& Pilgrim, Fatfreq Maestro SE & Deuce, Shure KSE1200, Technics EAH-AZ80, 7HZ My benchmark standard op-amp is the OPA1656 which is not the widest sounding, but it's tight, somewhat linear and has a good balance to the sound. Audio, Audio, Audio! Amplifiers, Phono preamp, and Analog OPA1656 - Better imaging / separation of instruments. OPA2134 vs. The voltage noise figure for the NJM4556A *should* be lower, being bipolar input vs. Reactions In the end I left inside the OPA1652 due to the lowest DC-voltage on outputs (e. Depending on the actual application circuit, there are alternatives with better noise performance. g. OpAmps for DAC output stages. Home The OPA1641 would be slightly better. I should have done my research a bit better because because I CS4392 with stock OPA2134 output filter is attached as image 2 and in percent as image 3. OPA2134 is probably a good choice in general. 2012-03-30 9:57 pm #6 2012-03-30 9:57 pm Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. Two cases were evalutated – in a The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. 0025% AD8599 (SOIC, Orange trace) +12. I will quote AI on this when asked for the choice between OPA1656 and OPA1612 for the XLR: 1. Yet I keep reading countless positive comments on the Muses and Sparkos. 0067% to 0. but, the real serial number does too. the much more expensive MUSES01. The V3 sounds more refined. . I know there are a lot of factors that set these apart, but I'm writing to ask what difference the amp modules make. LF353N op amp replacement options for old school Genesis . (Normally one would probably point to LM4562 as being the best compromise, but I think the Quiescent Current of 10mA is very high) OPA1656 has even lover distortion. If anything, it has a more 'neutral' sound than the (possibly slightly euphonic) OPA2134, but its performance is very reliable and dependable and of a very high standard, which possibly explains its long standing use in 'professional' audio gear. The owner then ordered a set of Sparkos Pro SS2590 discrete opamps. We are also using LME47920, LM4562, OPA2134, OPA2132 DIP8 opamps, or SOIC8 on adapters like OPA1656, OPA1678. THD+Noise vs Frequency 3 Description The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. OPA2134 or OPA2604 . Noob trying to build a passive headphone filter for testing, trouble finding components upvotes Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. I have done this in both the ESP P06 and Muffsy DIY I had ordered some opamps (OPA2134 and OPA1656) in the beginning to tinker with but after reading contradicting opinions decided to leave the original ones in. Reddit's original DIY Audio subreddit to discuss speaker and amplifier projects of Choosing the right audio op amp in different contexts: Parts discussed in this thread: OPA167x, OPAx134, OPA165x, OPA1622, OPA160x, OPA1692, OPA1611, OPA1632, With so many different audio op amps available from TI, it It sounds somewhat better with wider soundstage and better bass with stereo and instrument separation. Joined 2018. Joined 2006. diyAudio Community diyAudio Right. These are probably among the two highest of the best sounding dual opamps around today. Overall, don't recommend opamp rolling. I see a lot of Chinese HiFi gear put in the opa2134 or OPA1656, gain-bandwidth product 53 MHz LME49990, 110 MHz OPA1612, 40 MHz Behaving well: OPA2604, 20 MHz OPA2134, 8 MHz Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. I can't comment necessarily on the sound comparison. Facebook X (Twitter) LinkedIn Reddit OPA2134 has got pumped up bass and nasal coloration. Jump to Latest Tieftoener. Forum Style Benefit is lower dc offset and less distortion also high open loop gain also superior stability. Opa2604 is slightly warmer. Another way to say it: JFET OPamps like OPA2134 can replace most any other audio opamp View community ranking In the Top 5% of largest communities on Reddit. Cancel; Up 0 True Down; Cancel; 0 Chris Featherstone 8 months ago in reply to Greg 1, Burson V7 Classic and V7 Live and classic model 2, Sparks 3602 I am very curious about these opamps in this form, some friends said that the OPA1656 opamp is the closest to the Sparks 3602 opamp, they said it was very good, I listened to these reviews, I ordered it immediately, I ran the fosi audio za3 amplifier in XLR mode, the OPA1656S have a lme49713 vs opa627 vs AD815 vs opa2134 vs opa1612 vs opa2836. Help on op amp rolling: Burson SS V5i-D swap in to replace the stock OPA2134 in the FXAudio DAC 6X mk 2 When I replaced the stock OPA2134 in the FX Audio DAC X6 mk 2 with the Burson SS V5i-D I heard only static noise in the right side of my headphones and no music goes OPA2134 is a far easier drop-in replacement for the TL072. AD8610. Swap Meet. 4 Calculating Voltage Noise at the Output. Bass settings for a P bass It is an interesting fact. That seemed like a reasonable target for the supply current of the OPA1656 as well. Bernie7. 8 mV 0. The opa1656 is quite an analytical op amp and doesn’t really suit my ears at least but the opa2134 is another story and the 560s matches that op amp in the U3 very well. AD826 used instead of the the OPA2134. But the choices for the tone stack The OPA2134 is a fast-ish opamp, and can't handle long or high inductance power supply connections. What is LM4562. Analogue Source. " Reddit Pinterest Tumblr WhatsApp Email Share Link. Two identical gain 11 The better FET-input op-amps are expensive because they are laser-trimmed Part Number: OPA1656 Other Parts Discussed in Thread: OPA2134, OPA2604. Digital Source. It has the most stable input capacitance vs. If all you need to do is power the op amp, hook 30V to V+, gnd to V-, and you're done - the op amp has no concept of gnd outside of V-, so it doesn't matter if it's 15V and -15V or 30V and 0V. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines. In order to answer this question, we need to learn a bit more about the intended use. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. 19. Switching op amps is likely to cause as View community ranking In the Top 5% of largest communities on Reddit. I've tried the lme49720 on a few dac and had the sameish experience as you. performed OK with the OPA2134 but not much better than my other budget DAC that used a PCM1793 DAC followed by an OPA2134. 8 mA, for the OPA2134 typ. Part 1. diyAudio Community diyAudio Store The advantages of the V3 compared to the MAX: 1. Those are fine. By continuing to use this site, you are consenting to our use of cookies. Except opa1656 rest of opamps are available on rsdelivers. Reddit's original DIY Audio subreddit to discuss speaker and amplifier projects of all types, share The OPA2134 is an op-amp not comparable to the TDA2822, so you cannot use the same circuit and swap out the IC. For my test circuit I am using: +/- 13. OPA1656 will not have the flat, 5 ohm, output impedance of the OPA1622. Not a fan of the OPA2134 personally - it is like someone playing (on an instrument) the same tune for the 1000th time - accurate enough but with none of the passion or nuance of the first few times. I think it performs excellent. Depending on the actual application circuit, Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the OPA2134 and OPA2604 are very close in data. Will try to look into the OPA1656 :), seem to be a common recommendation or idea for a replacement for the MC33078N. Using hd600s and 400is to test them Ive compared the The second time I did test with opa1656 and opa1612. 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