Opa2134 vs opa1642. Head-Fi Special Forums.

Opa2134 vs opa1642 From: Thanks Jack I can hear a difference I will be getting some of the 2134's in my Nashville 1000 here soon. While the OPA2134 Other Parts Discussed in Thread: OPA2604 , OPA2156 , OPA1642 , OPA2134 Team, seems OPA2604 is EOL? Do we have a new part?Thanks. andyjevans. They are low power (the LM358 uses 40% of the current of a dual TL072) but have severe crossover distortion and have a response to only 2kHz (the TL072 has very low distortion and goes to 100kHz). Every amp. 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. MUSES 8920 vs Burr-Brown OPA2134 Home. Warm Mids (Deep and Full) . The OPA2228 didn't sound good in the DAC, and was the least good in the op-amp gain stage. Mark Johnson. Just like my conclusion long time ago, OPA2134 is still superior than 2604 as it sounds more balanced overall and smoother on Constant across signal level suggesting purely noise or poorer PSRR. Here's a link to the OPA2134 datasheet: The first time I did test with opa1642 opa2156(precision opamp version of opa1656) opa1612. A. 28 times as much (1. The TL072 is a dual opamp. J. I have a Denon PMA-737 integrated which uses the M5218 as DC Servo, too. It needs an adapter though. OPA2107 was okay with current and voltage but the sound was pretty much the same as OPA1642 ~ 2 Euro OPA1656 ~ 2. I have used the opa1642 as a replacement. 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. I have also tried opa1642, 1612 and 2134, but they are all slightly inferior to lm4562 soundwise in Aiyima a04. 1-nV/√ Hz noise density with an ultralow distortion of 0. 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. 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 I'm curious to know how the OPA1642 performed in your monoblock amp. So yes, I could distinguish a difference in the sound of the three op amps I tested: OPA134, OPA27, and NE5534A. Viriatusrex. In the world of audio amplifiers, the opa2134 is often compared with its counterparts. diyralf. 13 mA The thing that makes the difference between opamps in pedals like the Wonder Drive is how they recover from saturation. I have done this in both the ESP P06 and Muffsy DIY With the OPA2134 the DAC was more detailed but the sound lacked body. 4mA), and its MAX draw is LESS than the 072. 2 ® OPA134/2134/4134 SPECIFICATIONS At TA = +25°C, VS = ±15V, unless otherwise noted. I plan to get the brown dog adapters and try the opa 627's soon. Joined Oct 31, 2012 Posts 168 Likes 34 Anyway these replacement OPA2134's are from a different manufacturer, and I never thought the originals sounded that great. Regards, NIc Part Number: OPA2134 Other Parts Discussed in Thread: OPA134 , TINA I'm playing around with some simple headphone amps ( again ) with NE5532 vs. 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 TI THS4061 fet input is very fast, low noise and has a buttload of output current. In conclusion, the comparison between OPA2134 and NE5532 reveals two protean functional amplifiers suitable for a wide range of audio operations. 4. I would recommend OPA2134 or OPA134 and if you have money the If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. 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 The OPA2134 is a low-noise, ultra-low-distortion operational amplifier designed specifically for audio applications. Forums. appears to confer no OPA1642 is its replacement despite the lower type number. Posted by KanedaK (A) on December 22, 2016 at 16:38:35 . 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. For OPA1642, the output current (limit) appears to increase with increasing temperature. Conclusion of OPA2134 VS NE5532 . The OPAx132 is the slightly better version for DC critical applications. The OPA1642 only 1. (2003) and lm4562(2006) also old headphones sen hd650(2003) beyer dt990(1985). Share Jan TI OPA134 vs. TI OPA134 vs. LM4562 vs OPA2134 vs [ ? ] Home. Introductions, Help and Recommendations. but with some opamps i have reduce soundstage (AD823, OPA2134). newer opa1642 (2009) and sennheiser hd660s(2017) not better or improvement, Just different . My own conclusions with MUSES: In I/V stage: Muses02 There will be quite a bit of trade-off between different types of op amps. rrrremus. OPA2132. 2020-01-06 12:11 pm I've just done listening tests on a bunch of op-amps in the output of my V-DAC, which originally comes with a NE5532. You could try an OPA2134 if you don't want to deal with an SOIC to DIP adapter. . 8 vs 1. Contributor; Posts: 57; Logged; OPA2604 vs OPA2134 ? December 17, 2014, 02:03:48 PM. 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. 9V to 3V using OPA2134 and the L1113 and DC offset raised to over 250mV with them. These three Op-Amps sounds great. In this case, I added the LM6172 to the mix. Post #16 of 31 4. Last edited: 2010-09-30 9:20 am. SC. And if they were offered in a DIP OPA2134 and NE5532 both have power supply currents of about 4mA per channel, and have been widely adopted in the market (understatement). 7 mA quiescent current is typical of the OPA627, for the OPA2132 it should be typ. 00008%, 2604 is 0. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. File Size: 214Kbytes. Page: 12 Pages. Sometime I use OPA1612, OPA1642 and OPA1622. diyAudio Donor. Low noise opamps need to be used with low noise surrounding circuits though so just rolling in a lower noise opamp Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! 6 posts • Page 1 of 1. I tried the 1656 in there but didn't feel it added anything. THD+N level of all right channels is almost identical Buggle2 Riaa board. High Performance Audio Operational Amplifiers with FET inputs OPA2134 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. The daughter card allows users to develop multichannel audio applications such as A/V receivers, () User guide: PDF Not available on TI. 1 nV/√Hz at 1 kHz TI’s OPA2134 is a SoundPlus™ Audio Operational Amplifier with Low Distortion, Low Noise and Precision. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. 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. This may be the case with low frequency filters. 00008 % RL = 600Ω 0. 1 nV/√Hz at 1 kHz Just received a message from Digikey that the OPA2134 in various forms is being obsoleted. 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. 8ma quiescent current per channel - half as much as OPA2134,OPA1656 is the best boise performer now, but there Excuse me, it's not the OPA1642, it's the TPA6120A2 vs OPA2134, which one is better for audio, which has better quality, thanks. (Came with the other DAC an Aune X8 XVIIIth. consists of 2 x 10 op-amps in parallel and the two 10s are I'll look at it if you know of one amp using OPA1612 sounding audibly better than another amp using cheaper op amp in objective listening comparison. Go Down Pages 1. Then I also experience the mid range of this ±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 The Burson is just a little better in my opinion. However, there is a legacy op amp that is an audio industry standard offering low noise and low distortion, and available in the DIP package - the OPA2134. 2020-05-13 LM4562 vs OPA2134 vs [ ? ] Home. 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. Strangelove424 said: V. In (LM49720, OP275) reduction is low. 6 posts • Page 1 of 1. 5 mA. TL072 works most of the time but I almost always find a better substitute in dirt pedals. 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 The Silicon Chip High Fidelity preamp for 2 channel is based on the OPA2134, and is available via the Altronics franchise. Thread starter 439598; Start date Dec 15, 2017; Prev. 5 ±1 mV dVOS/dT Input offset voltage drift VS = ±2. OPA2134 vs OPA2604 vs OPA2107. Share: Facebook Reddit Pinterest Tumblr WhatsApp Email Share Link. Noise level is basically the same in LM4562 and NE5532, while OPA2134 is 2 dB weaker. Interesting on the 'high impedance' aspect, but again why does that make a difference? Technics SU-V8 bias and dc offset adjustments I downloaded a manual, and my mulitmeter is only a 3 digit, and i set it at dc mode as per photo. 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. I tested the opa2134 vs the ad712 that were stock. The sound is much better but there's still something a bit "hi-fi" and "grey" in the presentation. Basically, the 2228, to me at least, is the perfect blend between the BB sound and the AD sound. "OPA1612 vs LME49720" opamp comparison "OPA1612 vs LME49720" opamp comparison. Very nice presentation in the link! OPA2132 and OPA2228 are really good sounding op-amps. (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. By georgehifi March 22, 2022 in Stereo Amplifiers & Pre-Amps Share This is how I got a set of these including 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). I'm going to tell once again that LM833 has I'm curious to know how the OPA1642 performed in your monoblock amp. In other words, OPAx132PA and OPAx132UA (standard grades) are equivalent to OPAx134, which does NOT have a high grade. Features of OPA2134. 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). 25 V to ±18 V 0. 47uf PP film directly from each chip's supply pins to ground. The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. Curiously enough it seems to sound its best in combination with the OPA2134. Something like the OPA1642 might work ok, but it's SMT only as far as I know. , luketeaford. They're in Dangerous Music gear. Opa2134 is a very good opamp. , luketeaford, Kent, Joe. If a FET-input amplifier is required for low bias The better FET-input op-amps are expensive because they are laser-trimmed and prices can be crazy. Although I am a fan of the OPA2134, I still have very considerable respect for the NE5532. Alternatives to the NE5532 include the NJM4558 and TL072. OPA2107 was okay with current and voltage but the sound was pretty much the same as 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. 5V/µs ~ 0. 439598 100+ Head-Fier. 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. Post #31 of 31 kosmita 100+ Head-Fier. This is where it's important to consider the circuit an amplifier is used in, rather than just comparing data sheet These devices operate over a very wide supply voltage range of ±2. Joined Difference between 24/96 kHz and 16/44. 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. That's interesting, because in my little opamps rolling experiment it did not do very well. Joined 2002. 25 V to ±18 V ±0. com. It is a JFET input device, compared the the bipolar input JM4559, but that difference should not be of any real consequence in the application. artsandmedia. Preferred the 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 Ok. Portable Headphone Amps. Before any modifications I use shematics to see what i need to choose between these four Op I found that these two ICs had similar parameter, but some difference: OPA2134: lower noise(8nv, 2604 is 10nv), lower distortion(0. breadman Common Wiggler Posts: 178 Joined: Mon Jun 18, 2012 11:22 pm Location: NY. The OPA2134 draws 2. Easiest is to replace LF351N and LF353N for the OPA134 and OPA2134 just like the However it draws quite substantial current when idle. ArthurDent. R. The advice was: . OPA1642 AD8022 AD8066 LT1361 LT1364 Eliminated for various issues LT1057 - bit meh overall Previously eliminated in a AK4490 DAC LM4562 - clean but thin OPA2134 - quite good OPA2132 - quite good NE5532 - OK but not OPA2134 is great for buffer and clean applications but I never liked it for overdrive/distortion. 1 ArthurDent. NE5532, LM4562, NJR2114, OPA1602, LME49720, MUSES8820, MUSES8920, OPA2604, OPA1642, OPA2132PA, AD8672, AD8599, MUSES01, MUSES02. Operating temperature –40 125 °C T. 4 mA, max. or in any noise-critical circuit. breadman Common Wiggler Posts: 178 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℃ Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! Moderators: Kent, Joe. This feature, in combination with high output drive capability and excellent 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. ( the others I tried: opa1642 opa2134 and opa1612 ) Last edited: Oct 2, 2021. Hochleistungs-Audio-Operationsverstärker mit FET-Eingängen OPA2134 I'm currently using an OPA1642 surface mount with adapter and no input caps. I listened to OPA2134, LM4562, and NE5532, and OPA2134 sounded the best. Ich hoffe es macht irgendwie Sinn. The test procedures/instruments industry has a far more than adequate portfolio of tests. It is more open sounding and clearer sound from OPA1612 then OPA2134. In 2022 one would suggest OPA1642 and OPA1656 methinks. Alessandro MS-1, Sennheiser HD595, Audio Technica A500, Koss KSC-75, 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. Below is a comparison between OPA1656 and OPA1642. For OPA1652, the output I am probably behind the times, but OPA2134 were considered as being better at one point. 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. The OPA2134 is more a better replacement for the TL072 when you need a FET type. Yamaha A-S 2200 making a split secondsound cut (and relay click) when lowering or raising volume (at low volumes) Viriatusrex; Jul 23, 2024; Stereo and Multichannel Amplifier Reviews; Replies 5 Views 978. It's a poor implementation and not representative of what may happen in a proper circuit. Previous topic - Next topic. V = 3. V. The result of BB taking over OPA2134 is basic hi quality Op-Amp and all rounder Op-Amp with great sound. Please also note that in case of grounded 48Vdc power supply, each NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. OPA2134 costs an arm and a leg. 4 report foobar2000 v1. Edit: It is not always the best solution implementing the fastest OPAmp for I/V! Behind the 2228, the 2604 is my favorite BB opamp that I have heard (I have yet to hear the 627). That is not in the spec sheet, so your best Based on the M5128A datasheet, the DIP-8 M5128A and the TL072 are pin-for-pin compatible. Honestly, I can’t even remember if there are singles in the circuit. I find it was running very very warm while doing these adjustments? This is my first time at doing my own bias, i fitted the V8 with MT200 Sanken 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. Tested the OPA1642 for the I/V of D10. Joined Jun 3, 2013 Posts 354 Likes 68. The opa1678 looks like a better chip, as well and it's less than If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. Both fet based opamps sounds a little bit more solid in the bass(not quantity but the imaging and the texture). stg. 5mV vs 2mV, respectively). Sonically, new capacitors will probably have a bigger impact. 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 main difference between OPAx132 and OPAx134 is in DC precision of the high grade of OPAx2132P/U and OPA2134 (e. Boss Katana MKII 50 Justice Pro Lite and Sho Bud Pro II 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. 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. To deliver improved sound quality and speed for exceptional audio performance, a OPA1642 looks good on paper, better when you read the chatter from TI engineer on the project The OPA2134 is the best FET for the buck at around $3-4 each. Depending on the actual application circuit, there are alternatives with better noise performance. They do sound differently on different type of loads and i'm not a golden ear. 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. max Vos of 0. Overall, the OPA1642 is a MUCH better choice. 2 2014/07/24 20:27:41 File A: C:\Users\Amir\Music\Arnys Filter Test\keys jangling amir-converted 4416 2496. Die französische Übersetzung ist von Google. OPA2132 is not identical to OPA2134 " except offset" as Groner claimed. I'm wondering why? Are counterfeit dual op amps a possibility? Regards, Felix. Search titles only By: Search Advanced search Search titles only OPA1642 Vio +/-3. Serge VCFS - OPA2604 vs The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 2k Region: Australia Location: Operational Amplifier, 2 Amplifier, The OPA2134 is a low-noise, ultra-low-distortion operational amplifier designed specifically for audio applications. While the OPA2134 offers superior OPA2134 vs. pdf" compares the typical/maximum for the op amp choices. First, the OPA27, which I did not feel sounded as good as the other two here. Sep 7, 2021 at 3:55 PM. 5 V Input current (2) ±10 mA I. BurrBrown OPA2134 vs. OPA1642, OPA1678, OPA827, and the newer OPA828, or also OPA2810. Output Current characteristic curves seem to behave in opposite manners. Apr 20, 2020 at 3:29 AM. Last edited: Jan 15, 2021. ^^'-----Malheureusement, je ne peux pas recommander l'OPA1642. 25 V to ±18 V. 1uf Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . I don't like OPA2134 much, so For the very small differences likely to be heard between well chosen op-amps, your memory will start to fade in 10 seconds. OPA2134 is a far easier drop-in replacement for the TL072. 5 times as much (5 vs 1. Music sounded a bit constrained, deadened sense The TLE2072 is in the same range as the OPA1642 (1. Input buffer and filter are all These devices operate over a very wide supply voltage range of ±2. Good to see so many on this forum liking this opamp. wav 2134 vs 2132 looking back i'd go with the 2134, it's so much cheaper and sounds the same. But now I have to replace them. Some alternatives to the LM4562 include the OPA2134 and LT1358. Sadly i've found controversial and opposite OPA2134 vs OPA2604 vs OPA637. Reactions: rsavas. 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. WFCkeyman. I just thought using two opa627, i will achieve 2134's audio quality. 85 times as much quiescent current as the stock TL072 (4mA vs 1. Download. 8 mA, for the OPA2134 typ. A couple of attachments: "OA-supply-currents. Thread starter Tieftoener; Start date 2002-12-18 4:47 am; Status Not open for further replies. which would you prefer and why? what are the advantages and disadvantages of each? i tryed lme49722 opa2134 and opa1612 , --. (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. I am sure that the overall results are going to be context specific, but thought an additional comparison might prove useful. 7/1. BurrBrown OPA27 Home. 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). Jump to Latest Tieftoener. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. The single package OPA827 is also good. Does anyone have any personal experience with fake or suspect OPA2134's? The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. I threw an NE5532 and it helped Part #: OPA2604. Storage temperature –55 125 °C (1) Operation outside the Absolute Maximum Ratings may cause If you want low power then use a horrible LM358 dual or LM324 quad. The most obvious difference it the wider soundstage. Another way to say it: JFET OPamps like OPA2134 can replace most any other audio opamp Below are THD+N vs. AD825, OPA2132, OPA2134, OPA2604, LM4562, LME49720, LME49722, OP275, AD8599, TLE2072, THS4032, NE5532, and perhaps more 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. Joined Nov 25, 2015 Posts 332 Likes 77. 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 AD8620 vs. Joined OPA2134 de TI es Amplificador operacional de audio SoundPlus™ con baja distorsión, bajo ruido y precisión. g. Avoid LM4562/LME49720 and OPA2134/2604 if you do not want to re-engineering circuitry to make it stable. Head-Fi Special Forums. Forum Donor. Last edited by mediatechnology; 1st December 2017 at 12:52 AM. 000015% at 1 kHz. 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. 1 with file provided by the late ArnyK: foo_abx 1. Member; 4. Output short-circuit (3) Continuous T. 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. Anything other than these values and they're either fake or damaged (or both). GKTAUDIO. The slew rate of the M5128A is ~3V/µs while the TL072 has a slew-rate of ~13V/µs. User actions. Topic: OPA2134 Op Amp Evaluation and comparison; Jack Stoner. 2002-12-18 4:47 am #1 2002-12-18 4:47 am #1 Alright, I'm hoping Dorkus will read this. Ultra-Low Distortion: With a distortion level of just 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. 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. Print. Joined Sep 4, 2021 Messages 10,167 Likes 17,922 The following two sets of Output Voltage vs. These sound great and outshine many of the other modern high performance audio opamps out there today. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. If a person can hear a difference in electronic circuits, there are tests that can easily measure that difference. the lower the noise the more 'air' in the soundstage so I would recommend OPA1642 its noise is way lower than OPA2604. 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. Joined 2009. S. Help and Getting Started. OPA1642 sucks 1. I've replaced the old TL082 in my active crossover with opa2134. High Performance Audio Operational Amplifiers with FET inputs OPA2134 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. Joined 2003. amplitude for all opamps (with 560 ohm shunt resistors). How does it hold up? Let's take a peek! OPA2134 vs. Sound Science. Has anyone done any direct listening comparison between these two? 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. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. _____ A couple of guitars Fender GTX 100 Fender Mustang III Fender Blues Jr. Premier Sponsor Forums and Sponsor Forums. OPA1642 vs OPA1652 Compare result: OPA1642 ,OPA1652 . 4mA). First Prev 2 of 3 Go to page. 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). 4062 is 180MHz vs 100MHz (4032); Slew Rate 400 vs 100V/us, but there the rally ends. com and all are unity gain stable. Superior Sound Quality: The OPA2134 is designed to deliver excellent sound quality, making it ideal for audio applications where fidelity is critical. OPA2134 OP amps. I replace all 553x’s everytime I see them and I’m always happy with the results. - Accent moderne sur les aigus, jeu assez aigu - Basses douces et flatulentes - Baignoire typique - basses et aigus sans médiums 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. OPA2134's input JFETs are not dielectrically isolated, 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. The slew rate is higher than for the 5532, at 13 V/μs against 9 V/μs. 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. as well and I might try a opa2134 I have lying around. Sep 26, 2024. The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications G'day all, an interesting thread. Treble with a bit Warm . The 2227 and 2228 are pretty laid back, like most opa's, but they are revealing and agressive like the 8620. OPAx134 PSpice Model (Rev. 2023-01-28 2:11 pm #5 2023-01-28 2:11 pm #5 edit2 - There is a significant difference between the TL072 and your alternative amplifers. It's a better chip. Joined 2016. Serge VCFS - OPA2604 vs Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! Moderators: Kent, Joe. Opa2156 sounds a little more "detailed" and a little I'm still highly skeptical that anyone can hear the difference between two op-amps when they are used correctly. Premier Sponsor Forums. Other Audio Amplifiers. To deliver improved sound quality and speed for exceptional audio performance, a real FET input stage is OPA2134 de TI es Amplificador operacional de audio SoundPlus™ con baja distorsión, bajo ruido y precisión. VOS Input offset voltage VS = ±2. Thread starter Chaython; Start date Feb 18, 2017; Feb 18, 2017 at 12:36 AM Thread Starter Post #1 of 3 Chaython New Head-Fier. 3. great results running OPA2134's with at least 470uf Nichicon & 0. Joined 2011. 5mV max V. Posted April 6, 2020. F) JFET-Input Audio Op Amps OPA1642 The OPA1642 has more open at the high frequency, it is more detail but it noticeable sharp and edgy sound. LM4562 in my revox player took more than 100 hours to sound good. Description: Dual FET-Input, Low Distortion OPERATIONAL AMPLIFIER. The percentage relative to TL072 is interesting. I know he has had some direct experience with the two. 1 nV/√Hz at 1 kHz 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. Junction temperature 150 °C T. Next Last. When the original OP is Bipolar(like NE5532 etc) we can most always replace with FET or another similar Bipolar OP. 5 (V+) + 0. OPA2134 is basic hi quality Op-Amp and all rounder Op-Amp with great 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. Joined Feb 16, 2017 Posts 9 Likes 10. Its low gain bandwidth makes OPA1642 a nice option for retrofits, it While not necessary in this circuit, I'd recommend OPA1652, OPA1642, or OPA1688 as FET-input op amps instead of the OPA2134 for audio signal path applications. Equipment Forums. Only in Electronica was the soundstage not much wider and imaging not much improved. Can anyone suggest drop-in replacements to OPA2134? I'm looking for a natural, transparent sound vs colored. Thread starter mikeg88; Start date Apr 10, 2008; Apr 10, 2008 at 6:29 AM Thread Starter Post #1 of 2 mikeg88 Head-Fier. Similar Sound compared to OPA2134 but Bass is little better under control. 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. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. Reactions: KR500 and marpe. wav File B: C:\Users\Amir\Music\Arnys Filter Test\keys jangling full band 2496. This, combined with the high output drive capabilities and good DC performance, makes it suitable for a wide range of demanding Meine Empfehlung ist der gute alte OPA2134, der macht alles besser. Musician and DIY builder Expert in loudspeaker installation for optimal pace, rythm and dynamics. 4 mA per opamp section, which is significantly less than the 5532. For example, the OP285 (which I believe is laser trimmed) has a low offset voltage, but higher bias current. 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. I used opa2134’s for the duals and can’t remember if I used 134’s or LME49710’s for singles. 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. A true FET input stage is integrated to give increased sound quality and speed for great audio performance. I've studied around in different forums and found information about differences between the resistor value going to ground. G'day all, an interesting thread. How are LME49860, LME49720 etc? Are they drop-in If you don't mind adapters, the smd version of the opa2134 is cheaper. HeadRoom Premier Sponsor Forum. I did a blind test between These devices operate over a very wide supply voltage range of ±2. MUSES8820 is the best, IMHO. I recently got a Matrix Audio M-STAGE HPA 2C classic with an OPA2134 and it was a little harsh on top. OPA134. 00015 % Intermodulation Distortion G = 1, f = 1kHz, VO = AD8512's do sound better but they are 8 nv noise vs 5 nv noise for the BB OPA1642. 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. 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 some respects I think of the LM4562 as a somewhat upgraded NE5532. Interesting stuff Wayne, thanks! The OPA2134 is an audio-specific low-noise, ultra-low-distortion operational amplifier. Any project fired up with the OPA 2134 is going to impress due to the cost. Supply voltage dropped from 14. Yes sir. OPA2134 is probably a good choice in general. breadman Common Wiggler Posts: 178 Serge VCFS - OPA2604 vs OPA2134? From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive! Moderators: Kent, Joe. The OPA2134 is more a better replacement for the TL072 when you 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. Go. 3 2 µV/°C PSRR Power-supply rejection ratio VS = ±2. 1; 2; 3; First Prev 3 of 3 Go to page. Before that, it was as sharp and cold as a swiss knife. Simulation model. 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 Part Number: OPA1612 Other Parts Discussed in Thread: OPA2134, , OPA1678 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. 4032 is clearly better in the following areas: Settling time to 0,01%: 80ns vs 140ns for 4062; Burr Brown® OPA2134 vs R4580 Home. Musician and DIY builder The OPA2134 is a low-noise, ultra-low-distortion operational amplifier designed specifically for audio applications. Except opa1656 rest of opamps are available on rsdelivers. Reason: Added link As mentioned previously the OPA2134 in BIFET is a decent performer. Normal audio can use the cheaper OPA2134. Joined 2018. Not sure a guitar effect could do it justice. 4mA), and the LM4562 3. To deliver improved sound quality and speed for exceptional audio performance, a real FET input stage is included. How are LME49860, LME49720 etc? Are they drop-in I've ordered some opa2604's from ebay still in transit to play with. There is no decoupling between the caps and external supply so quite possible. Anyway these OPA2134's sound fantastic. 25 V to ±18 V TA = –40°C to +125°C(2) 0. If you swap to a more modern op amp it's important to add 0. Member. The second one could be a bipolar type with good drive capability such as the LM4562- There's been quite a bit of discussion of the comparative merits of the OPA2134 vs the OPA2604 recently. Apparently it's harder to work with, but i haven't gotten a chance to try it yet. Supply voltage, (V+) – (V–) 36 V Input voltage (2) (V–) – 0. If you just wanted to use a single 5V supply, the OPA1671 is good. Manufacturer: Burr-Brown (TI). Joined 2014. It has a modest power consumption at typically 1. It's also overkill in the extreme. But it IS more expensive and SOIC only. G = 100V/V G = 10V/V G = 1V/V Measurement BW = 80kHz See “Distortion Measure-ments” for description of 1kΩ test method. Two identical gain 11 amplifiers were tested. 8mA, vs OPA2134 @ 4mA). From my reading on this subject, it seems that many fake OPA2134's are simply 'restamped' TLO72's for example. 1; 2; 3; Next. ±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. 5Vrms O OPEN-LOOP GAIN/PHASE vs FREQUENCY Frequency (Hz) Voltage Gain (dB) 120 100 80 60 40 20 0 –20 1 10 100 1k 10k 100k 1M 10M 0 –45 –90 –135 –180 G Phase Shift (Degrees) φ INPUT BIAS AND INPUT OFFSET Conclusion of OPA2134 VS NE5532 . The OPA1642, SMT-only, is also a good dual BIFET. 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. The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Paid Member. While the opa2132 and The JFET input devices give their best noise performance at medium impedances, in the range 1 kΩ–10 kΩ. Both are FETs. It may or may not sound at all noticeably better than a TL072, it depends on the circuit and application. 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. I'm with Jim here. antcollinet Grand Contributor. This, combined with its high output drive capability and excellent DC AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option. For one of the OP amp it's optimal with 1k and for the other one it's 2k. Measurewise there's not really a difference comparing OPA2134. nognow. xkixd ifv hmpakvhj dcw lduqe knycht ltvxtrm wvzdx gnheu bitg