Opa2134 vs opa1642 reddit Left channel is 5-10 dB better but there is also more variance between boards/opamps. the Ultra Micro for example. Apparently it's harder to work with, but i haven't gotten a chance to try it yet. Didn't hear any difference between LM4562 and OPA2134. Additionally, 5V isn't really enough for the OPA2134. I've tried the lme49720 on a few dac and had the sameish experience as you. The R4580 is probably better spec wise but sometimes distortion of a signal to make it warmer (quieter treble) is a good thing. It is difficult to say which one is better. Could anyone recommend a specific opamp to upgrade to, or is the NE5532 a decent opamp that I shouldn't worry about replacing for now. It's not the most exciting combination but the 3. Joined 2004. 4062 is 180MHz vs 100MHz (4032); Slew Rate 400 vs 100V/us, but there the rally ends. reddit's community for DIY Pedal Builders! I asked a simple question, and your reply is quoting somebody's book -with over "200" tests, yet you can't point to ONE that shows your assertion that:" If a person can hear a difference in electronic circuits, there are tests that can I really like the 2604. The better FET-input op-amps are expensive because they are laser-trimmed and prices can be crazy. At the risk of immediately coming across as exaggerated and/or hyped -- the "battle" was simply an epic slaughter! The opa2134 already installed is neutralish/slighty bassy. 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. amplitude at 1kHz and 6kHz / 4ohm, unregulated 50V power supply View attachment 104323 Please note the strange nonlinear behavior at 6kHz. diyAudio Community The 2134 is an "audio" op-amp, meaning that it is a de-rated 2132. I have used both for pre-amps and crossovers and although the NE5532 is a great OPAMP, Linus Tech Tips - Reddit vs PC Part Picker vs LTT Forum – Where Should YOU Go for Build Advice? LM6172 for my eurorack-compatible-ish video circuits. 5V/µs ~ 0. Reddit's original DIY Audio subreddit to discuss speaker and amplifier projects of OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and the new OPA1656 is a great option, but you could also check out: OPA1642, OPA1678, OPA827, and the newer OPA828, or also Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. 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. OPA2604 is one of the few op-amps having +24 -24 max supply voltage. Thread starter JoeBob; Start date 2002-01-07 4:08 am; Status Not open for further replies. Jump to Latest Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. OPA2134 Drop-in replacement. Home. BurrBrown OPA27 Home. TL072 works most of the time but I almost always find a better substitute in dirt pedals. 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. Is it me or this is the case Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. tl072cn replaced by opa2134. OPA2134 as a phono preamp? I know it's a really quiet FET opamp, but it's usually Excuse me, it's not the OPA1642, it's the TPA6120A2 vs OPA2134, which one is better for audio, which has better quality, thanks. The LM324 might work, but it's probably noisier than you want, and has terrible crossover artifacts (non-linearity, distortion). A modern chip like an OPA2134 or LF353 would be better. Reply reply reddit's community for DIY Pedal Builders! Members Online. I work with OPA2134, which is basically the same, and had the same question. I would recommend OPA2134 or OPA134 and if you have money the Other Parts Discussed in Thread: TLE2082, TLE2062, OPA2134, OPA1652, OPA1654, OPA1642, OPA1644, LM833 I need to source a replacement for 2 2134 op amps in a new preamp 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. So there is no 100% garantee it LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. Facebook X (Twitter) Reddit Pinterest Tumblr WhatsApp Email Share Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. Swapped the Op Amp in my cheap Pyle phono pre to a OPA2134 and am really impressed in the difference. OPA2132P vs OPA2132PA WHAT'S THE DIFFERENCE? diyAudio Community diyAudio Store I just replaced the TL072CN from my preamp with the "better" opa2134. It sounds swell but I have a set of the higher performance LMA49720NA DIP-8 opamps here on my desk and I'm wondering if they're plug-in compatible. I noticed someone talking about an OPA2134 as a replacment. I've been doing a bit of filtering with an OPA2134. atlechri. Technical Forums. In (LM49720, OP275) reduction is low. In fact, dual OPA627 on Browndogs would have been something to consider as well. AD826 used instead of the the OPA2134. Thread starter Tieftoener; Start date 2002-12-18 4:47 am; Status Not open for further replies. I am reliably informed that 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. Any thoughts on better replacements that offer a warm, clean, rich tube'ish sound? Thanks I am going to order atleast 12 op-amps for my CMoy PCB boards, and looking for best general sounding op-amp for the CMoy. Joined 2005. The THD+N of the 1688 should be better too, best I can tell comparing the datasheet graphs vs. Design & Build. diyAudio Community diyAudio Hello, I just got interested in DIY stuff. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. I tested the opa2134 vs the ad712 that were stock. Get app Get the Reddit app Log In Log in to Reddit. I can vouch for the OPA2134. Ok. I am seeking help as a noob on op amp rolling. Double blind AB, the TL074 circuit had audible Below is a comparison between OPA1656 and OPA1642. Swap Meet. Personally, I like the ne5532 with the cs4398(about the same detail level as the opa2134 subjectively but smoother sounding in my opinion). 69K subscribers in the diypedals community. Theme - Light; It's not likely to be the choice of resistors causing the problem. If the piano tone is right, I find most other tonalities are also good. Please contact the webmaster or board administrator for more information. This is completely in conformance with TI SLAA788A 2134 vs 2132 looking back i'd go with the 2134, it's so much cheaper and sounds the same. 77K subscribers in the diyaudio community. Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. Parts. 3. 13 mA Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Share Link. Log In / Sign Up; Advertise on Reddit; Shop Collectible Avatars; I like the OPA2134/4134 better than the NE5542 for hobbyist stuff - runs off 5v, great audio quality, not too expensive. "It sounds like nails on a chalkboard" is symptomatic of HF oscillation. Headphone Systems. OPA134 If I put my notes here, I might be able to find them again later! Rate this Entry Audio op amp comparison NE5534A vs. consists of 2 x 10 op-amps in parallel and the two 10s are OPA2134 is probably a good choice in general. 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). Yes the case gets a lot warmer than op amps like the NE5532 and the LM833. I plan to get the brown dog adapters and try the opa 627's soon. Warm and lm4562(2006) also old headphones sen hd650(2003) beyer dt990(1985). i tryed lme49722 opa2134 and opa1612 , --. Solid State. Thread starter bmwrob; Start date 2002-05-05 8:35 am; Status This old topic is closed. LME49720 vs OPA1612 vs Muses02. Is there any better OP than OPA2134. The OPA2134 doesn't have a specific ground input, just a V+ and V-. The LMV358 is good for a little signal generator, but falls short of high-fidelity audio. diyAudio Community diyAudio Store. You have been banned from this forum. THS4062 vs 4032: 4062 is not in any way similar to (let alone better than) 4032 when we talk specs that matter to audio performance. Noise level is basically the same in LM4562 and NE5532, while OPA2134 is 2 dB weaker. It has a solid state preamp section and tube power section. Misc. I would like to have your opinions and suggestions on this. The sound quality comes from the entire circuit, not the op amp. By georgehifi March 22, 2022 in Stereo Amplifiers & Pre-Amps Share This is how I got a set of these including OPA1642 and OPA827. -Category Forums OPA1642 ~ 2 Euro OPA1656 ~ 2. The voltage noise figure for the NJM4556A *should* be lower, being bipolar input vs. General Questions. (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. OPA2134 is a far easier drop-in replacement for the TL072. Very nice presentation in the link! Thank you. I was just curious what people's thoughts were for that opamp, and if they had any other preferences in terms of quality? I've been using I last tried the circuit with OPA2134 in year 2000, and with TL074 in 1992. In production pedal circuits I've seen it in the Diezel VH4 and Keeley Magnetic Echo so far. Light This probably isn’t the answer you want, but I’m going to present it to you anyway. OPA2134 gain stage with voltage series feedback. OPA1642 would be my suggestion to upgrade OPA2134, Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. . I noticed that the opamp used for the audio output was an NE5532. vac . The AD826 seems to be smoother than the OPA in the voice range. I would say it depends on what circuit. I know the 8066 will need a BrownDog adapter. com with a TI insider involved. 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. Today I obtained some replacement OPA2134PA's for two that I accidentally blew up yesterday (yes, reversed power supply leads). OPA2134 or OPA2604 . A. The result is better highs more clear but the lows are not so punchy as with tl072cn. OPA2134 headphone I always had to restrict opamp bandwidth far more with a diamond buffer output (vs. They are nothing special, on the contrary. AD8620 vs. Depending on the actual application circuit, there are alternatives with better noise performance. For me it's mostly a question of realistic grand piano tone. 2012-06-06 LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. I am fond of the bass response and warm tone of the 2134 in my existing designs, but the new application uses phantom power which is limited to a total of 10mA for the complete circuit. So far it doesn't save me any money though. Theme - Light; YYYY-MM-DD / 12-hour clock; AD8620 vs. A true FET input stage is incorporated to provide excellent The HD3 features a PCM5102 DAC and a OPA2134 headphone amp that's separate from the main speaker amp. Just sold these 4 pedals!!! OPA2134 and OPA2604 are very close in data. Eric Mo Intellectual 820 points Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656, OPA134. That was the circuit where the OPA2134 sounded better. Probably going to switch to a SMD-only +-5V video rate opamp sometime, though, and just regulate the voltage down, to match with LZX's newer design choices. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. An op amp is part of a larger circuit and is chosen because its specs match those required for the circuit. reddit's community for DIY Pedal Builders! » Acer Nitro for budget, LG27GP850-B or for mid range - IPS, 165hz, Reddit favorite monitors. Every amp. So I can use any one of these ( one at a time !). Digital Source. Theme The 4558 isn't a great piece of equipment. Amplifiers. » LG ‎27GR95QE-B - OLED, 240hz, . It's a better chip. G'day all, one thing that I've noticed from my own DIY work is that the OPA2134 seems to draw more current in normal operation. 47uf PP film directly from each chip's supply pins to ground. As for BB OPA2134 sound, it sounds better to me than the R4580 and is less fatiguing. The advice was: . Although I am a fan of the OPA2134, I still have very considerable respect for the NE5532. LinkedIn Reddit Pinterest Tumblr WhatsApp Email Share Link. amplitude for all opamps (with 560 ohm shunt resistors). The 2132 has better specs and is felt by most who have heard them compared to sound slightly better. They also have lower THD and noise is 5. Bipolar or not. 5 mm headphone output does exactly what it's supposed to do: power 72K subscribers in the diypedals community. jitter. THD+N level of all right channels is almost identical at -94 dBV. Will it harm the rest of the amplifier? Muses02 vs BB OPA2134 in Topping A30 (single-ended to differential buffer) Rig includes: Topping A30 and D30, HD600s (vintage 2017) with HD650 (genuine Sennheiser replacement part) 3m cable (1. 3ms, Just a beast of a monitor Ultrawide 1440p 144hz » LG 34GP83-AB - IPS, one of the fav on reddit. 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. It's nice because it comes in DIP and SOIC, works at video rates, and can handle +-12V. I don't like OPA2134 much, so something like AD8620 would have been another good comparison to Burson. Best combos of performance and value. Using hd600s and 400is to test them Ive compared the I don't know if this is the right place to post this. Theme - Light; Part Number: OPA1656 Other Parts Discussed in Thread: OPA2134, OPA2604 The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. OPA1642 AD8022 AD8066 LT1361 LT1364 Eliminated for various issues LT1469 - rather thin, very clean AD8599 - too thin, very clean, excellent high treble LM6172 - wooden piano sound LT1057 - bit meh overall Previously eliminated in a AK4490 DAC LM4562 - clean but thin OPA2134 - quite good OPA2132 - quite good NE5532 - OK but not special OPA2228 Of all the op amps I've used, I still preferred the sound of the OPA2134 and very easy to work with. Alessandro MS-1, Sennheiser HD595, Audio Technica A500, Koss KSC-75, In 2022 one would suggest OPA1642 and OPA1656 methinks. Forums. OPA2604 is a little bit faster. FET on the OPA1688, but strangely it is actually higher at 10nV/sqrt(Hz). OPA2134 op-amp obsolete? NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. OPA134 Posted 10th February 2012 at 11:49 PM by rjm Updated 11th February 2012 at 03:48 AM by rjm. It's a OPA2134 vs. You are right about OPA2132 and OPA2134. com and all are unity gain stable. 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. I have used the opa1642 as a replacement. quite opposite actually :-) Anyway, I went looking for Burr-Brown OPA2134PA, but instead found Texas Instruments OPA2134PA on digikey (part# OPA2134PA-ND). Source & Line This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I used to have a comparison written up between the 2132 and 2604, but I don't know where it is anymore. 6SL7 tube SRPP gain stage with voltage shunt feedback. I've only used it in a MINT, but I liked it substantially better than the 2132 and almost as much as the AD8620. BurrBrown OPA2134 vs. But deep bass and transients seem more punchy in the OPA2134. the best sounding is OPA1612 ,not for driving headphones -low output current drive ,3ma current consumption ---then opa2134 the best all around as preamplifier it can be used at high gain 6-10 times,very good sounding and Musical,good for biassing in class A. ah so much other untested opa's 1678 still on my list ina1620. 5 vs 8 nv. 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. Chip Amps. Anyway these replacement OPA2134's are from a different manufacturer, and I never thought the originals sounded I have also tried opa1642, 1612 and 2134, XDUOO MT-605 tube Amp vs Topping PA3s listening comparison. I have a phono preamp board with three socketed DIP-8 OPA2134 in it. They sound clearly different. NE5532 or OPA2134. OPA2134 is more stable, as it is not too fast for Audio. Does anyone have any personal experience with fake or suspect OPA2134's? Getting quite a few projects on my list that specify OPA2134 Anyone have a reliable inexpensive source? the smd version of the opa2134 is cheaper. Expand user menu Open settings menu. a single EF) for a given level of stability. OPA1642 - Slew = 20V/µs OPA2107 - Slew > 9V/µs OPA2134 - Slew = 20V/µs OPA2604 - Slew = 25V/µs OP275 - Slew = 22V/µs RC4559 - Slew = 2V/µs TL022 - Slew = 0. newer opa1642 (2009) and sennheiser hd660s(2017) not better or improvement, Just different Reddit Pinterest Tumblr WhatsApp Email Share Link. 4kHz bandwidth LM49720 and OPA2134 all have the same level of performance with the NJM2742 having the worst performance of the bunch and the LT1352 being just slightly Facebook 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. 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. Facebook X Reddit LinkedIn Post Reply Welcome to the Gearspace Pro Audio Community! Registration OPA2134 headphone amplifier or recommend something better . breadman Common Wiggler Something like the OPA1642 might work ok, but it's SMT only as far as I I agree that it isn't easy to determine what is "better". OPA1656: High-Performance TI OPA134 vs. Two identical gain 11 amplifiers were tested. Anyone tried TI version of this 2134 before The OPA2134 is very ordinary, I consider it a side step to the NE5532. 4" plug). 30 votes, 13 comments. WTB: Something a little better than OPA2134s. the TI's LME49860, LME49720. AD8610 . Theme - Light; I ask this as although I have used many OPA2134's over the years I have seen a few that appear to be 'sub standard' in some respects (noisy for example). the O2 dScope measurements that NwAvGuy posted. Members Online. Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link. I think I used a NE5532 in my KOT. I should have done OPA2134: OPA2134 VS OPA1656. Is there any better OP than OPA2134 regards Progg70 . reddit's community for DIY Pedal Builders! OPA2134 is great for buffer and clean applications but I never liked it for overdrive/distortion. From memory should draw something like 7mA. Other Parts Discussed in Thread: TLE2082, TLE2062, OPA2134, OPA1652, OPA1654, OPA1642, OPA1644, LM833 I need to source a replacement for 2 2134 op amps in a new preamp design. If a FET-input amplifier is required for low bias I loved the pattern of MUSES03 and correctness/clarity of OPA2134. Light "OPA1612 vs LME49720" opamp comparison "OPA1612 vs LME49720" opamp comparison. (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. Below are THD+N vs. G'day all, this is something that I can't explain. Now there are both Bipolar and JFET OPs of many types. So far I've stayed with conventional op-amps like LT1361, Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . 85 votes, 23 comments. OPA2134 is a FET opamp and has its own unique benefits but isn't as low noise as R4580. The preamp section uses LM 1458 op amps. Except opa1656 rest of opamps are available on rsdelivers. The OPA1688 even beats it on noise. Hi Team, My customer wants to replace OPA1656 with OPA2134. Member. 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 through even after I The OPA2134 is an op-amp not comparable to the TDA2822, so you cannot use the same circuit and swap out the IC. great results running OPA2134's with at least 470uf Nichicon & 0. Just received a message from Digikey that the OPA2134 in various forms is being obsoleted. Monamtb; Oct 3, 2024; Amplifiers, Phono preamp, and Analog Audio Review; Replies 0 Views 488. +Gain Bandwidth. 4032 is clearly better in the following areas: Settling time to 0,01%: 80ns vs 140ns for 4062;. By continuing to use this site, you are consenting to our use of cookies. In order to answer this question, we need to learn a bit more about the intended use. JFET OPamps like OPA2134 can replace most any other audio opamp. G'day all, an interesting thread. Which one has OPA2134: High quality audio op amp, usually used when a very clear and transparent tone is needed. From my reading on this subject, it seems that many fake OPA2134's are simply 'restamped' TLO72's for example. 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. Oct 3, 2024. The OPA2134 is a fast-ish opamp, and can't handle long or high inductance power supply connections. OPA134. If you Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. Theme - Light; The TI OPA2134 looks like an easy drop-in replacement for the original NJM4580D, but what has me puzzled is the advise I found on upgrading the power supply caps for the OPA2134s. Premier Take the Micro vs. Head-Fi Special Forums. Noob trying to build a passive headphone filter for testing, trouble finding components You only have one audio opamp, the OPA2134, and one kinda-acceptable opamp, the LMV358. It sounds somewhat better with wider soundstage and better bass with stereo and instrument separation. Opa2604 is slightly warmer. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. I opened up my very inexpensive dvd player yesterday to try to look for upgrade options. Light Rolling opa1642, opa1612, muses8920 opa2134. the lower the noise the more 'air' in the soundstage so I would recommend OPA1642 its noise is way lower than OPA2604. Contrast is ok. Vendor's Bazaar. Opa2134 isn't a bad opamp, but I don't like if in lpf sections. Switching op amps is likely to cause as Howdy. 2005-10-23 12:45 pm #2 2005-10-23 12:45 pm #2 AD797 Hi. Finally got around to some Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! 6 posts • Page 1 of 1. A question for opamp gurus. It offers exceptional performance in almost any audio application. OPA1656: High I tried the BurrBrown OPA2134 and the National Semiconductor LME49720 but was dissapointed by big trade offs. THD vs. but with some opamps i have reduce soundstage (AD823, OPA2134). THD+N Ratio vs Measured Level / Inverting 6dB Gain / 100k load / 22. 1. Audio, Audio, Audio I typically prefer tube amps, but I have a Music Man amp from about 1979 that sounds great. And without mentioning every op amp in existence, I'll close with I yet have to find a circuit where an NE5532 is the best possible option. OPA2134 vs. OPA2134 or OPA2604. I guess what puts me in a dilemma is that Burr Brown branding behind the well known OPA2134 vs. My favorites at the moment opa1642 and this one opa1656. Gallery Audio op amp comparison NE5534A vs. AD8610. But I really like the FET's in that position. I wish it was offered in 8-DIP =\ OPA1642 - Slew = 20V/µs OPA2107 - Slew > 9V/µs OPA2134 - Slew = 20V/µs OPA2604 - Slew = 25V/µs OP275 - Slew = 22V/µs RC4559 - Slew = 2V/µs TL022 - Slew = 0. True FET input stage, with superb performance. Opamp change Now some Disappointments. Source & Line. uzrrnq kki uzzeaxc mppedx ivaio txyaokl axa yhsd disfu hrq