Opa2134 vs opa1642 1nV/√Hz noise density with an ultralow distortion of 0. Strangelove424 said: MUSES 8920 vs Burr-Brown OPA2134 Home. User actions. If a circuit isn't designed Today, I installed the OPA2134PA Op Amps in my Nashville 1000, that Ken Fox is selling and now using as the replacements in the Peavey amps and Profex II. Great for piano/violin or metal / electric guitar. The 2227 and 2228 are pretty laid back, like most opa's, but they are revealing and agressive like the 8620. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. 5mV vs 2mV, respectively). Apr 20, 2020 at 3:29 AM. 4mA). J. BurrBrown OPA2134 vs. the lower the noise the more 'air' in the soundstage so I would recommend OPA1642 its noise is way lower than OPA2604. This may be the case with low frequency filters. Head-Fi Special Forums. The low voltage noise combined with These devices operate over a very wide supply voltage range of ±2. The OPA1611 offers rail-to-rail output swing to within 600mV with a 2kR load, which increases Other Parts Discussed in Thread: OPA2604 , OPA2156 , OPA1642 , OPA2134 Team, seems OPA2604 is EOL? Do we have a new part?Thanks. 6SL7 tube SRPP gain stage with voltage shunt feedback. OPA2134 OPA4134 OPA134 OPA2134 vs Power Supply (PSRR) VS = ±2. I too find that the OPA1612 and OPA1642 are fantastic upgrade/replacements in a whole lot of professional and consumer audio gear out there equipped with comparatively outdated opamps. As for BB OPA2134 sound, it sounds better to me than the R4580 and is less fatiguing. Reactions: rsavas. First Prev 2 of 3 Go to page. While the OPA2134 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. Both fet based opamps sounds a little bit more solid in the bass(not quantity but the imaging and the texture). Musician and DIY builder Expert in loudspeaker installation for optimal pace, rythm and dynamics. Something like the OPA1642 might work ok, but it's SMT only as far as I know. Versus the NE5532, of course Considering the 5532 was released in 1979 and the 1656 in 2019 (it's TI's latest), that's 40 years of cumulative audio engineering in the making! I've ordered some opa2604's from ebay still in transit to play with. These three Op-Amps sounds great. It is more open sounding and clearer sound from OPA1612 then OPA2134. The R4580 is probably better spec wise but sometimes distortion of a signal to make it warmer (quieter treble) is a good thing. 13 mA The thing that makes the difference between opamps in pedals like the Wonder Drive is how they recover from saturation. breadman Common Wiggler Posts: 178 Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! Moderators: Kent, Joe. On the other hand, the Other Parts Discussed in Thread: OPA2134, , OPA1678. The OPA2228 didn't sound good in the DAC, and was the least good in the op-amp gain stage. I've studied around in different forums and found information about differences between the resistor value going to ground. AD826 used instead of the the OPA2134. stg. Sound Science. , luketeaford. but with some opamps i have reduce soundstage (AD823, OPA2134). Earbuds when no need for noise isolation. Sadly i've found controversial and opposite OPA2134 is a FET opamp and has its own unique benefits but isn't as low noise as R4580. Serge VCFS - OPA2604 vs OPA2134 de TI es Amplificador operacional de audio SoundPlus™ con baja distorsión, bajo ruido y precisión. ±2000 V OPA2134 in SOIC Package V (ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±2000 V Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±500 OPA4134 in SOIC Package V OPA1641, OPA1642, OPA1644 SBOS484D –DECEMBER 2009–REVISED APRIL 2016 OPA164x SoundPlus™ High-Performance, JFET-Input Audio Operational Amplifiers 1 1 Features 1• Superior Sound Quality • True JFET Input Operational Amplifier With Low Input Bias Current • Low Noise: 5. 2023-01-28 2:11 pm #5 2023-01-28 2:11 pm #5 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. I have a phono preamp board with three socketed DIP-8 OPA2134 in it. I would caution you against using the "knee" in the noise curve to OPA2604 vs OPA2134 ? OPA2604 vs OPA2134 ? Started by nognow, December 17, 2014, 02:03:48 PM. Output Current characteristic curves seem to behave in opposite manners. Interestingly enough the OPA2134 isn't the quietest dual op amp in the P06 circuit (but still quiet in absolute terms), and the LM4562 sounds somewhat 'sterile' in Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! 6 posts • Page 1 of 1. Joined 2011. The OPA2134 is more a better replacement for the TL072 when you need a FET type. Low Noise: The amplifier has a low noise level of 8 The two Op-amps mentioned in the video are the Burr Brown dual op-amp OPA2134PA in the cream painted build and the jrc4558 in the silver build. 4 report foobar2000 v1. The OPA2134 is a low-noise, ultra-low-distortion operational amplifier designed specifically for audio applications. The slew rate of the M5128A is ~3V/µs while the TL072 has a slew-rate of ~13V/µs. In a final step I am working on soldering some OPA1642 into adapters and over time will replace the remaining OPA2134 opamps with the OPA1642 to reduce the current draw. Interesting on the 'high impedance' aspect, but again why does that make a difference? Based on the M5128A datasheet, the DIP-8 M5128A and the TL072 are pin-for-pin compatible. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. 3 2 µV/°C PSRR Power-supply rejection ratio VS = ±2. 1 nV/√Hz at 1 kHz Tested the OPA1642 for the I/V of D10. And if they were offered in a DIP I found that these two ICs had similar parameter, but some difference: OPA2134: lower noise(8nv, 2604 is 10nv), lower distortion(0. Low noise opamps need to be used with low noise surrounding circuits though so just rolling in a lower noise opamp The Burson is just a little better in my opinion. If you don't mind adapters, the smd version of the opa2134 is cheaper. I recently got a Matrix Audio M-STAGE HPA 2C classic with an OPA2134 and it was a little harsh on top. If you just wanted to use a single 5V supply, the OPA1671 is good. g. Easiest is to replace LF351N and LF353N for the OPA134 and OPA2134 just like the Below is a comparison between OPA1656 and OPA1642. Sep 7, 2021 at 3:55 PM. Thread starter theque; Start date Nov 21, 2012; Tags headphone-amplifiers Nov 21, 2012 at 1:03 AM Thread Starter Post #1 of 2 theque 100+ Head-Fier. 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 has good tone and detail when in single mono mode ie with two op amps one per channel. While the OPA2134 offers superior performance in terms of lower noise,deformation, and potentially advanced bandwidth, it comes with an advanced price label. I just thought using two opa627, i will achieve 2134's audio quality. 1 with file provided by the late ArnyK: foo_abx 1. Noise of the A07 is mostly defined by high resistance Simple Graphical Guide on SE vs. The daughter card allows users to develop multichannel audio applications such as A/V receivers, () User guide: PDF Not available on TI. newer opa1642 (2009) and sennheiser hd660s(2017) not better or improvement, Just different . My Technics SU-V9 is having relay issues, and needs a recap, and possible 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. Most +/-15V op amps have max Vamplitude = 14V. artsandmedia. Paid Member. That is not in the spec sheet, so your best In 2022 one would suggest OPA1642 and OPA1656 methinks. Only in Electronica was the soundstage not much wider and imaging not much improved. MUSES8820 is the best, IMHO. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. Have you found I'm playing around with some simple headphone amps ( again ) with NE5532 vs. I'm with Jim here. Although I am a fan of the OPA2134, I still have very considerable respect for the NE5532. Treble with a bit Warm . But even then, I agree with you. OPA2134 is basic hi quality Op-Amp and all rounder Op-Amp with great The TLE2072 is in the same range as the OPA1642 (1. I tested the opa2134 vs the ad712 that were stock. If a person can hear a difference in electronic circuits, there are tests that can easily measure that difference. 25 V to ±18 V 0. Next Last. Is there any difference if I connect one from OPA137 — Single, 36-V, 1-MHz operational amplifier with rail-to-rail input to V+ OPA141 JFET-Input Audio Op Amps OPA1642 SoundPlus™ 8-MHz, 5-pA, High Performance Audio Operational Amplifiers with FET inputs OPA2134 I would like to ask your opinion in replacing OPA2134 for an LME49720 in one DC Servo application? Technically wich one should do a better job? Thanks for Search. (2003) and lm4562(2006) also old headphones sen hd650(2003) beyer dt990(1985). Even using LM4562 in my revox player took more than 100 hours to sound good. OPAx134 PSpice Model (Rev. S. Noise is almost same as with LM4562 and there are no problems with distortion. Edit: It is not always the best solution implementing the fastest OPAmp for I/V! The OPA1642, SMT-only, is also a good dual BIFET. Startseite Verstärker. Posted by Ehien (A) on January 30, 2002 at 11:22:50 Stimulated by a recent thread about opamps, I went back and compared again BB OPA2134 and OPA2604 in my Lehman Black Cube phono amp. 5 mA. ad825 vs ad8610 Hi Fmak, thanks for all the ongoing help. It's also overkill in the extreme. Conclusion of OPA2134 VS NE5532 . Just like my conclusion long time ago, OPA2134 is still superior than 2604 as it sounds more balanced overall and smoother on The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications 36V, 10MHz, Low Distortion High Drive Rail-to-Rail Output Audio Operational Amplifiers 8-SOIC -40℃ to 85℃ Only really better substitution for NJM4580 for example as Pre-Amp can be no less then OPA2228 or even better OPA1612, but for that -3dB less noise (and distortion) over whole audio spectrum you will have to play premium extra. Please also note that in case of grounded 48Vdc power supply, each Behind the 2228, the 2604 is my favorite BB opamp that I have heard (I have yet to hear the 627). Depending on the actual application circuit, there are alternatives with better noise performance. Copy Comment URL; Report Comment; The comparison between the LM4562 and NE5532 operational amplifiers (op-amps) is an essential journey into the world of audio electronics, where the intricacies of sound quality and performance are paramount. Overall, the OPA1642 is a MUCH better choice. OPA137 — Single, 36-V, 1-MHz operational amplifier with rail-to-rail input to V+ OPA141 JFET-input audio op amp OPA1642-Q1 SoundPlus™ 8-MHz, 5-pA, High Performance Audio Operational Amplifiers with FET inputs OPA2134 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). Same with the OPA627 though. Premier Sponsor Forums. amplitude for all opamps (with 560 ohm shunt resistors). The opa2132 provides high precision, making it ideal for demanding applications. It works with no problems. (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. The OPA1642 is not a 'cheap' amplifier, but it is very clean, and seems to behave well, even in a non-inverting application. The OPA1642, SMT-only, is also a good dual BIFET. 6 KB · Views: 154 Last edited: anything better than opa2134 Hi, Interesting that no one has mentined opa2132P so far. The max SR (signal) = 1. But it IS more expensive and SOIC only. GKTAUDIO. It may or may not sound at all noticeably better than a TL072, it depends on the circuit and application. High Performance Audio Operational Amplifiers with FET inputs OPA2134 OPA2134PA vs OPA2604AP Compare result: OPA2134PA ,OPA2604AP . 25 V to ±18 V TA = –40°C to +125°C(2) 0. OPA134PA, UA OPA2134PA, UA OPA4134PA, UA PARAMETER CONDITION MIN TYP MAX UNITS AUDIO PERFORMANCE Total Harmonic Distortion + Noise G = 1, f = 1kHz, VO = 3Vrms RL = 2kΩ 0. The 2132 has better specs and is felt by most who have heard them compared to sound slightly better. 5 times as much (5 vs 1. The sound quality is quite reasonable unlike most YouTube audio demos. 7 mA quiescent current is typical of the OPA627, for the OPA2132 it should be typ. The DAC is a TDA1541. Share Apr 2, 2009 at 4:31 PM. OPA2134 gain stage with voltage series feedback. Operating temperature –40 125 °C T. diyralf. Avoid LM4562/LME49720 and OPA2134/2604 if you do not want to re-engineering circuitry to make it stable. The result of BB taking over The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. While the opa2132 and opa2134 share similarities, they also have unique characteristics. These sound great and outshine many of the other modern high performance audio opamps out there today. Sadly i've found controversial and opposite Just found a space to test AIYIMA A07 with OPA2134 opamp. Reason: Added link As mentioned previously the OPA2134 in BIFET is a decent performer. Night and day difference though. By georgehifi March 22, 2022 in Stereo Amplifiers & Pre-Amps Share This is how I got a set of these including OPA1642 and OPA827. It needs an adapter though. Ultra-Low Distortion: With a distortion level of just 0. I've replaced the old TL082 in my active crossover with opa2134. I know he has had some direct experience with the two. NE5532, LM4562, NJR2114, OPA1602, LME49720, MUSES8820, There will be quite a bit of trade-off between different types of op amps. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. I'm going to tell once again that LM833 has Features of OPA2134. Print. 3. 4mA), and the LM4562 3. pdf" compares the typical/maximum for the op amp choices. 5V to ±18V 90 106 dB Channel Separation (Dual, Quad) dc, RL = 2kΩ 135 dB f = 20kHz, RL = 2kΩ 130 dB INPUT BIAS CURRENT Input Bias Current(4) V CM =0V +5 ±100 pA vs Temperature(3) See Typical Curve ±5nA Input Offset Current(4) V With the OPA2134 the DAC was more detailed but the sound lacked body. A true FET input stage is integrated to give increased sound quality and speed for great audio performance. I found that OPA1612 was in the ultimate soundplus collection that's why i 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 Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . Basically, the 2228, to me at least, is the perfect blend between the BB sound and the AD sound. Two identical gain 11 amplifiers were tested. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and improve sound quality. In my experience any audible difference between well set up opamps is fairly subtle. Any project fired up with the OPA 2134 is going to impress due to the cost. Joined OPA2134 is great for buffer and clean applications but I never liked it for overdrive/distortion. In fact, dual OPA627 on Browndogs would have been 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. 2 2014/07/24 20:27:41 File A: C:\Users\Amir\Music\Arnys Filter Test\keys jangling amir-converted 4416 The OPA2134 draws 2. georgehifi. ArthurDent. 1. How are LME49860, LME49720 etc? Are they drop-in TI’s OPA2134 is a SoundPlus™ Audio Operational Amplifier with Low Distortion, Low Noise and Precision. SoundPlus™, hohe Leistung, JFET-Eingang OPA1642-Q1 Conclusion of OPA2134 VS NE5532 . 00008 % RL = 600Ω 0. as well and I might try a opa2134 I have lying around. Post #16 of 31 4. 11-MHz, low-noise 36-V JFET precision operational amplifier with rail-to-rail output OPA140A-DIE JFET-input audio op amp OPA1642-Q1 The Silicon Chip High Fidelity preamp for 2 channel is based on the OPA2134, and is available via the Altronics franchise. Sonically, new capacitors will probably have a bigger impact. To deliver improved sound quality and speed for exceptional audio performance, a real FET input stage is included. Has anyone done any direct listening comparison between these two? These devices operate over a very wide supply voltage range of ±2. Anything other than these values and they're either fake or damaged (or both). Opa2134 is a very good opamp. Mark Johnson. Joined 2002. Thread starter 439598; Start date Dec 15, 2017; Prev. Joined 2016. 2020-01-06 12:11 pm OPA2134 doesn't quite have this advantage but has other good points. But the warmth in mid frequency (1k-4k) is gone. 1-nV/√ Hz noise density with an ultralow distortion of 0. Supply voltage, (V+) – (V–) 36 V Input voltage (2) (V–) – 0. 4 mA, max. Yes sir. Similar Sound compared to OPA2134 but Bass is little better under control. Except opa1656 rest of opamps are available on rsdelivers. I have some extra TLE2072 so I may change out the OPA2134 in the buffer positions as there are now new sockets installed in all positions. Input buffer and filter are all OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). With this IC I can instantly tell the difference between good mastering/mixing tracks vs not so good and muddy. Alessandro MS-1, Sennheiser HD595, Audio Technica A500, Koss KSC-75, Just received a message from Digikey that the OPA2134 in various forms is being obsoleted. 8mA, vs OPA2134 @ 4mA). 860. It is a touch better than opa2134 - especially where small reduction in noise level is welcomed. Music sounded a bit constrained, deadened sense ±2000 V OPA2134 in SOIC Package V (ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±2000 V Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±500 OPA4134 in SOIC Package V Previously i used OPA2134 Op-Amps in my DIY project and CD/DVD modification and after abou year ago i start to use OPA1612. Sony WF-1000XM4 for maximum portability. Of course, some people don't necessarily understand that they can't just swap these chips in a circuit willy-nilly and expect them to work properly. . Buggle2 Riaa board. Thread starter Tieftoener; Start date 2002-12-18 4:47 am; Status Not open for further replies. Previous topic - Next topic. A question for opamp gurus. I replaced my ad8610 I/Vs with ad 825s last night. Hello, I have on hand 3 OPA1642s. In conclusion, the comparison between OPA2134 and NE5532 reveals two protean functional amplifiers suitable for a wide range of audio operations. LM4562 vs OPA2134 vs [ ? ] Home. The OPA1642 only 1. Serge VCFS - OPA2604 vs At the present time my favourites are the OPA2134 and the LM4562. They also have lower THD I am probably behind the times, but OPA2134 were considered as being better at one point. If a FET-input amplifier is required for low bias Excuse me, it's not the OPA1642, it's the TPA6120A2 vs OPA2134, which one is better for audio, which has better quality, thanks. - Accent OPA1641, OPA1642, OPA1644 SBOS484D –DECEMBER 2009–REVISED APRIL 2016 OPA164x SoundPlus™ High-Performance, JFET-Input Audio Operational Amplifiers 1 1 Features 1• Superior Sound Quality • True JFET Input Operational Amplifier With Low Input Bias Current • Low Noise: 5. Difference between 24/96 kHz and 16/44. OPA2134 - loudness curve, kicking bass but often no real depth and too fast unnatural cut away yes!, the worst soundstage or imaging, the decay is lost! Everything sounds swapped and cleaned, no distortion, but it sounds filtered to sound rounded, even the sometimes silvery highs don't disturb. 00015 % Intermodulation Distortion G = 1, f = 1kHz, VO = Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! Moderators: Kent, Joe. I plan to get the brown dog adapters and try the opa 627's soon. First, the OPA27, which I did not feel sounded as good as the other two here. Post #31 of 31 kosmita 100+ Head-Fier. Can anyone suggest drop-in replacements to OPA2134? I'm looking for a natural, transparent sound vs colored. Contributor; Posts: 57; Logged; OPA2604 vs OPA2134 ? December 17, 2014, 02:03:48 PM. I don't like OPA2134 much, so something like AD8620 would have been another good comparison to Burson. 28 times as much (1. The OPAx132 is the slightly better version for DC critical applications. F) JFET-Input Audio Op Amps OPA1642 G'day all, an interesting thread. 0003%); OPA2604: high slew rate(25v/us, 2134 is 20V/us), high bandwidth(20M, 2134 is 8M) In Active Xover, there are input buffer, filter, output with gain changing. Reactions: OPA2134 is a far easier drop-in replacement for the TL072. which would you prefer and why? what are the advantages and disadvantages of each? i tryed lme49722 opa2134 and opa1612 , --. Hochleistungs-Audio-Operationsverstärker mit FET-Eingängen OPA2134 It was overall falling something in between the OPA2604 and the AD823 in character, more refined and detailed, with better soundstage than either of the two, but combining many of the attributes of each. musical. Die französische Übersetzung ist von Google. The advice was: U can use OPA1612 or OPA1642 instead of NJM4580 or M4580 from Mitsubishi. breadman Common Wiggler Posts: 178 Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! 6 posts • Page 1 of 1. Thanks for the reply though, I checked it out and noticed the comment on the OPA2604 needing more juice, so I checked out the spec sheet at TI, and it seems like it'll like anything from +/-15V to +/-24V, while the OPA2134 only likes up to +/-18V (pretty close to the -17V of my power suply), so I think I'll feel safer going with the OPA2604 regardless. They are delivered via private courier and it must be signed for, all for free! I also believe you can get some National Devices such as: LME49720, as well because BB bought I have also tried opa1642, 1612 and 2134, but they are all slightly inferior to lm4562 soundwise in Aiyima a04. They do sound differently on different type of loads and i'm not a golden ear. OPA1642 on SOIC devices free as SAMPLE for R&D and place them on an adaptor that converts from SOIC to dip 8. jpg. TL072 works most of the time but I almost always find a better substitute in dirt pedals. TI-Produkt OPA2134 ist ein(e) SoundPlus™-Audio-Operationsverstärker mit geringer Verzerrung, geringem Rauschen und Präzision. HeadRoom Premier Sponsor Forum. 25 V to ±18 V. For example, the OP285 (which I believe is laser trimmed) has a low offset voltage, but higher bias current. These replacements sound clean, crisp and dare I say it. Simulation model. This is where it's important to consider the circuit an amplifier is used in, rather than just comparing data sheet The 2134 is an "audio" op-amp, meaning that it is a de-rated 2132. I did not like it too much when listening to edm / electronic music. SC. OPA2134 OP amps. As long as your not using them for military purposes. Opa2156 sounds a little more "detailed" and a little edit2 - There is a significant difference between the TL072 and your alternative amplifers. 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. 1uf 2 ® OPA134/2134/4134 SPECIFICATIONS At TA = +25°C, VS = ±15V, unless otherwise noted. Does anyone have any personal experience with fake or suspect OPA2134's? V. THD+N level of all right channels is almost identical In I/V stage: - MUSES8920 is very balanced and could be used in I/V stages without worries, because this is what this OPAMP has been made for. com and all are unity gain stable. 1; 2; 3; Next. Since i couldnt find an opa2134, i just use tl072 and the likes for our projects I am just curious how opa2134's output performance. I threw an NE5532 and it helped OPA2134 vs OPA2604 vs OPA637. Joined Oct 31, 2012 Posts 168 Likes 34 I'm playing around with some simple headphone amps ( again ) with NE5532 vs. When I do serious listening test between them, just an A - B testing, not back and forth, I found the OPA1642 creates more noise at upper frequency because of those high frequency details. max Vos of 0. Joined Jun 3, 2013 Posts 354 Likes 68. or in any noise-critical circuit. OPA134. Joined Nov 25, 2015 Posts 332 Likes 77. 5 (V+) + 0. consists of 2 x 10 op-amps in parallel and the two 10s are However it draws quite substantial current when idle. The most obvious difference it the wider soundstage. Forums. Measurewise there's not really a difference comparing OPA2134. Portable Headphone Amps. Joined 2003. 8ma quiescent current per channel - half as much as OPA2134,OPA1656 is the best boise performer now, but there OPA2134 is probably a good choice in general. VOS Input offset voltage VS = ±2. Member. It's a better chip. 00008%, 2604 is 0. Meine Empfehlung ist der gute alte OPA2134, der macht alles besser. OPA2132 is not identical to OPA2134 " except offset" as Groner claimed. NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. For one of the OP amp it's optimal with 1k and for the other one it's 2k. Another way to say it: JFET OPamps like OPA2134 can replace most any other audio opamp "OPA1612 vs LME49720" opamp comparison "OPA1612 vs LME49720" opamp comparison. Good to see so many on this forum liking this opamp. If you swap to a more modern op amp it's important to add 0. To deliver improved sound quality and speed for exceptional audio performance, a Howdy. 2002-12-18 4:47 am #1 2002-12-18 4:47 am #1 Alright, I'm hoping Dorkus will read this. The test procedures/instruments industry has a far more than adequate portfolio of tests. Not sure a guitar effect could do it justice. Apparently it's harder to work with, but i haven't gotten a chance to try it yet. Equipment Forums. 2k Region: Australia Location: Operational Amplifier, 2 Amplifier, Ok. 00008%, the OPA2134 ensures that audio signals remain clean and undistorted. Prefer the OpA2134 over these. so far I note that the ad8610 seemed to go deeper in the bass and is a little warmer overall than the ad825. 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 am curious to see if this impression changes over the week. 26 V/us at 20 kHz. 1 nV/√Hz at 1 kHz 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. You could try an OPA2134 if you don't want to deal with an SOIC to DIP adapter. Hi team, The following two sets of Output Voltage vs. In other words, OPAx132PA and OPAx132UA (standard grades) are equivalent to OPAx134, which does NOT have a high grade. So I don't know. For example, if you're using an OPA2134 in a CMOY-type headphone amplifier, the OPA1688 would be a big improvement in both distortion and power consumption. The final choice of ICs depends on application and personal preferences. The TL072 is a FET based one, so has much lower bias and offset currents, and typically a higher voltage noise and lower current noise. OPA2134 vs OPA2604 vs OPA2107. OPA2132. 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). 5 ±1 mV dVOS/dT Input offset voltage drift VS = ±2. Topic: OPA2134 Op Amp Evaluation and comparison; Jack Stoner. Newer so-called audiophile op-amps have a higher bandwidth, than the traditional ones, so are more sensitive to board layout and can easily oscillate. Superior Sound Quality: The OPA2134 is designed to deliver excellent sound quality, making it ideal for audio applications where fidelity is critical. A. Premier Sponsor Forums and Sponsor Forums. If you have schematics for Sony 508ESD look what capacitor you Rolled in some different op amps. From my reading on this subject, it seems that many fake OPA2134's are simply 'restamped' TLO72's for example. The percentage relative to TL072 is interesting. 25 V to ±18 V ±0. If one has to use a FET input amplifier for audio in a non-inverting stage, this would be my first choice today. Hi Community, TI!!! I would like to upgrade an audio amplifier OPA2134 and the TI site web recommands me to change for a new OPA. Storage temperature –55 125 °C (1) Operation outside the Absolute Maximum Ratings may cause OPA2134 vs. Noise level is basically the same in LM4562 and NE5532, while OPA2134 is 2 dB weaker. Search titles only By: Search Advanced search Search titles only OPA1642 Vio +/-3. 439598 100+ Head-Fier. 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. Got these when they first released them b4 the acquisition of LME from National. Posted by KanedaK (A) on December 22, 2016 at 16:38:35 . OPA2134 costs an arm and a leg. 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. I have used the opa1642 as a replacement. Bal Audio w/ Headphones ClieOS' Audio Titbit Etymotic ER4S/SR for reference and analytical; Sennheiser HD600 or MoonDrop PARA when stationary. test_OPA1642 vs OPA2134. Joined 2014. The sound is much better but there's still something a bit "hi-fi" and "grey" in the presentation. For OPA1642, the output current (limit) appears to For the very small differences likely to be heard between well chosen op-amps, your memory will start to fade in 10 seconds. Ich hoffe es macht irgendwie Sinn. Encuentre parámetros, información sobre pedidos y calidad de grado automotriz OPA1642 — Amplificador operacional de audio doble SoundPlus de alto rendimiento con entrada JFET OPA1642-Q1 Well, anyway, an OPA1642 has better datasheet specs than an OPA2134---about 4 db less noise, 4 db less distortion, and ~ 1 db more headroom. 5 V Input current (2) ±10 mA I. Jump to Latest Tieftoener. For Moving Magnet use (34 dB of gain), the combo of the stock op amps were not too bad. AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option. Personally, my hearing isn't good enough (or my circuits are bad enough) to hear the difference. Last edited by mediatechnology; 1st December 2017 at 12:52 AM. High Performance Audio Operational Amplifiers with FET inputs OPA2134 Excuse me, it's not the OPA1642, it's the TPA6120A2 vs OPA2134, which one is better for audio, which has better quality, thanks. Share Jan 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. 8 mA, for the OPA2134 typ. 5V/µs ~ 0. When the original OP is Bipolar(like NE5532 etc) we can most always replace with FET or another similar Bipolar OP. 4mA), and its MAX draw is LESS than the 072. 1; 2; 3; First Prev 3 of 3 Go to page. Sometime I use OPA1612, OPA1642 and OPA1622. andyjevans. This, combined with the high output drive capabilities and good DC performance, makes it suitable for a wide range of demanding TI OPA134 vs. There is definite OPA 1642 are the best for audio, nothing comes close, if you’re getting into LM or LME get in there fast from trusted suppliers as they are being wiped out of existence and replaced with OPA. The ad825 seems to be more detailed alright. Power supply voltage +12V, Single G'day all, an interesting thread. 06-18-2019 at 06:01am . 3. Go Down Pages 1. 00015 % Intermodulation Distortion G = 1, f = 1kHz, VO = These devices operate over a very wide supply voltage range of ±2. Warm Mids (Deep and Full) . ^^'-----Malheureusement, je ne peux pas recommander l'OPA1642. Parameter-, Bestell- und Qualitätsinformationen finden. According to the web site it is doc to use the OPA2134. A couple of attachments: "OA-supply-currents. The OPA1611AID is a low power precision Operational Amplifier achieves very low 1. nognow. Output short-circuit (3) Continuous T. Junction temperature 150 °C T. 85 times as much quiescent current as the stock TL072 (4mA vs 1. Joined 2018. Before that, it was as sharp and cold as a swiss knife. Thread starter mikeg88; Start date Apr 10, 2008; Apr 10, 2008 at 6:29 AM Thread Starter Post #1 of 2 mikeg88 Head-Fier. OPA1642 sucks 1. 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 I'm still highly skeptical that anyone can hear the difference between two op-amps when they are used correctly. AD8620 vs. So I can use any one of these ( one at a time !). Some designers say the amp SR should be at least 5x the signal SR, others OPA1642 is its replacement despite the lower type number. _____ A couple of guitars Fender GTX 100 Fender Mustang III Fender Blues Jr. Member; 4. diyAudio Donor. Part Number: OPA1642 Other Parts Discussed in Thread: OPA1652. com. OPA1642, OPA1678, OPA827, and the newer OPA828, or also OPA2810. In (LM49720, OP275) reduction is low. Regards, NIc Part Number: OPA2134 Other Parts Discussed in Thread: OPA134 , TINA-TI Need help calculate an opamp preamplifier stage based on OPA2134 with WEBENCH Designer. 7/1. Every amp. , luketeaford, Kent, Joe. So yes, I could distinguish a difference in the sound of the three op amps I tested: OPA134, OPA27, and NE5534A. Both are FETs. 2 ® OPA134/2134/4134 SPECIFICATIONS At TA = +25°C, VS = ±15V, unless otherwise noted. 3 5 µV/V INPUT BIAS CURRENT IB Input bias current VCM = 0 V(3) ±10 ±20 pA IOS Input offset current VCM = 0 V ±10 ±20 My friend would like to replace the ADA-5062-2 with OPA2134 for the I/V Stage, is that a good idea? Thanks! Search But why not go further and use OPA1642 for its even lower noise? W. It offers exceptional performance in almost any audio application. OPA2134 seems inoffensive and defined enough but it's got this flat, slightly recessed in the midrange presentation - not quite what I'd call "dull" but not bright, just a bit "hifi", it sounds like an entry-level Japanese solid-state amplifier, and there's The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. Last edited: Jan 15, 2021. Likewise I would have thought that an OPA2134 is an OPA2134! Part Number: OPA1642 Other Parts Discussed in Thread: DIP-ADAPTER-EVM, OPA2134, RC4558, TL072. I'm currently using an OPA1642 surface mount with adapter and no input caps. Posted April 6, 2020. Very nice presentation in the link! OPA2132 and OPA2228 are really good sounding op-amps. Thread starter pma; The speaker sees the voltage difference, so no problem, but SE input soundcard could not be used for measurements, as it would short one of the output terminals to ground. OPA1642 would be my suggestion to upgrade OPA2134, its about half the price from TI but being SOIC would need an adaptor for DIL applications. From: Thanks Jack I can hear a difference I will be getting some of the 2134's in my Nashville 1000 here soon. Sound is cleaner comparing to OPA2134. Details; Discussions; Posts; This discussion; 10,312 posts. 8 vs 1. The OPA1641, OPA1642, and OPA1644 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. 4062 is 180MHz vs 100MHz (4032); Slew Rate 400 vs 100V/us, but there the rally ends. There's a series of uploads on YouTube featuring most of the popular opamps. Then I also experience the mid range of this So I just blew up 5 Burr Brown OPA2134 due to bad labelling on the PCB (Ok I was also supposed to be more careful). 4. Boss Katana MKII 50 Justice Pro Lite and Sho Bud Pro II Below are THD+N vs. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. 2134 vs 2132 looking back i'd go with the 2134, it's so much cheaper and sounds the same. The opa1678 looks like a better chip, as well and it's less than The OPA1642 has more open at the high frequency, it is more detail but it noticeable sharp and edgy sound. 2. BurrBrown OPA27 Home. 2020-05-13 G'day all, an interesting thread. Post #4 of 6 matthewcarlrose Head-Fier. 1 ArthurDent. The LM4562 is a superb dual op amp with very low noise but I prefer the OPA2134 for its sweet/musical sound. 4032 is clearly better in the following areas: Settling time to 0,01%: 80ns vs 140ns for 4062; The first time I did test with opa1642 opa2156(precision opamp version of opa1656) opa1612. Go. This, combined with its high output drive capability and excellent DC If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. 000015% at 1 kHz. But now I have to replace them. 000015% at 1kHz. WFCkeyman. breadman Common Wiggler Posts: 178 Joined: Mon Jun 18, 2012 11:22 pm Location: NY. 5mV max I have used the following as the buffer gain stage between a passive LC filter and the power amp. 6 posts • Page 1 of 1. 2015-09-21 5:35 pm #2 2015-09-21 5:35 pm #2 I wanted to know how well it drives headphone-sized load impedances. OPA1611AID Product overview. (Came with the other DAC an Aune X8 The main difference between OPAx132 and OPAx134 is in DC precision of the high grade of OPAx2132P/U and OPA2134 (e. Normal audio can use the cheaper OPA2134. Interesting stuff Wayne, thanks! The OPA2134 is an audio-specific low-noise, ultra-low-distortion operational amplifier. nuyashnuopnvkvwfxesqphkeqsbywivsbyjsdzytwz