Lm4562 vs opa2134 forum. Small-Signal Bandwidth: 10 MHz.

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Lm4562 vs opa2134 forum. The sound is really good with the 2604 providing some Other Parts Discussed in Thread: LM4562, LME49720, MC33078, LME49860, NE5532, OPA1642, OPA2134, OPA1612, OPA2604. comAll files and Gerber :https://drive. This Fosi V3 is the best of the bunch, a simple, genuinely powerful/useful, truthful, nice-looking and nice-sounding amp that can be tucked pretty much anywhere. amongst them one I could directly put in my cmoy, an Analog AD823. Member. I find OPA2604 more laid back/smoother and LM4562 very crisp/more forward. ) He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. 00008%, 2604 is 0. Easy & Effective. when we use opa1612 to translate difference input to single-ended output, the output is distorted, pls. It is likely that you will improve performance but not pull This is a visual "off the scope screen" comparison of four different op amps often used in audio circuits. ---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 … Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power Supplies Headphone Systems. 12. As mentioned previously the OPA2134 in BIFET is a decent performer. View attachment 44449 Fig. When designing the Burson V5i, our goal was to create a product that was to manage. I know I don't need to. OPA2134 tested clean in the … Decky. Originally Posted by majkel /img/forum/go_quote. If you have NE5532 after the volume potentiometer, than exchange it with OPA2134. Here's the kicker: As far as I can see even the T. I did find one part in one song with a specific background sound that was cleaner on the LM4562 vs the NE5532. When the original OP is Bipolar(like NE5532 etc) we can most always replace with FET or another similar Bipolar OP. 67kHz and CCIF. Classifieds. Other Parts Discussed in Thread: LM4562, OPA2134, OPA1612, OPA1602, OPA1642. I must test muses now. The … #1. If you want a value dual, OPA2227 is the way to go. Post subject: Re: LM4562 Phono Pre Amp Circuit Board. I have tried them before and whilst impressed with their generally lower noise, sonically I was a little ambivalent about them, however after listening to them for a few hours today I have to admit that they are not too bad at all! Misc. 2014-03-03 6:49 pm. Hello, Wandelblu, Minon. Thread starter pma; Start date Jan 7, 2021; the best one can hope for is an opamp with a lower noise figure, which would lower the noise maybe one dB or so -- a difference likely below perception. Normal audio can use the … By most standards the LM4562 is a superior op-amp to the NE5532. Power Bandwidth: 140 kHz. Kortom er zitten nog wel haken en ogen aan het uitwisselen. What was omitted from the LM4562/LME49720 history is that the part was cancelled, because the 6" wafer line it was sourced from went way, and then resurrected on a new 8" wafer line. This may be the case with low frequency filters. However. May 23, 2016. Y. The LM4562 is a nice opamp and won alot of awards when it was released for the performance to price it is good. Currently, high frequency are too Forum Donor. 1-1uF polypropylen, wich improves midrange and treble detail and clarity. Both OPA2134 and LM4562 are dual and pinout is the same. Sound Science. I am wondering which of the IC chip based audio … Fig. 7. BUT the 4562 still has MUCH less (-36db) THD, is faster (~2x), and better CMR (-20db). Be sure that package is plastic DIP as I described a not a @majkel: Compared to the 49860, I believe your comments were that the 4562 was smeary and the 49720 was bland. The advice was: . LM4562 is another level altogether. 1 k : 3. That input stage it is not properly for a volume potentiometer. SINAD = 86. Articles. 30 berichten Vorige; 1; 2; b_force Ook commercieel actief Berichten: 12395 Dit is de nieuwe codering van de LM4562. schematic. I tried using one 2134 and … I've uploaded the . elpro. The LM49720 sounds "laidback", similar to the OPA2134. But no perceptible sound difference from the stock 5532's. OPA1612 (soic on dil adapter board), bi-polar from input to output, again a very good opamp, which to me "sounds more balanced" top to bottom than the LME, it is just as dynamic, but just a little less obvious in the bass leading edge because the mid-range seems a little more fleshed out rich and full bodied, highs are just as good as the … I tried OPA2227, NE5532, LM4562, NJM4562. Hi Guys, Could you tell us the differences between LM4562 and LME49720? The only difference I could see clearly is the price and the Vn( a difference of 0. Yesterday, I got some opamps. I have the impression that the voltage regs run also more hot than before but I may be … 0. With LM4562, regulated linear 30V power supply and volume pot about 10:00. Many opamps have a max supply of +/-18Vdc, so simply rolling opamp into such amps would cause them to smoke. 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). The LM4562 has a lower offset voltage (+/-0. Marketplace Home. Patreon https://www. View attachment 44448 Fig. I double … OPA2134 is probably a good choice in general. Home. New posts Search forums. 2001-10-08 9:07 pm #2 2001-10-08 9:07 pm #2 Rob, NE5532 is really a good OPAMP compared to many others. And opa1656 and opa1612 doesn't sound any different. 3. So far I read the OPA2134 as an upgrade to the LM but its quite expensive, has anyone experience with this op amp or do you know any op amps that you consider … THD+N Ratio vs Measured Level / Inverting 6dB Gain / 100k load / 22. Hi All, I have a number of pieces of equipment (sony cd player, DMP3 and so on) that use M5218 and NJM4560 in SIP packages. Both of these figures are to be expected because the LM4562 is a bipolar input op amp while the OPA2134 is a FET input op amp. click Misc. Other Parts Discussed in Thread: OPA2134, , OPA1678. order) on the LM4562, so I'm looking for alternatives. -Category Forums. You could also try the LM4562, but in some players it may seem a bit overwhelming with … Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power Supplies Headphone Systems. 2. 5mm AUX OUT as output connect to next amplifier without volume control THD：0. The first one is sounding warm and … LM4562 is similar to the LME49720 but can be too sterile. 7 dB re 150W/4ohm. Nu kost een opampje niet de wereld maar ik zou wel eerst in het klein proberen voordat je … interesse om goedkopen LM4562 of OPA2134 ??? Voor- en Eindversterkers. Electronics Forums. Though IIRC Doug didn't seem to rate the OPA2134's over the LM4562 either. DIY (Do-It-Yourself) Discussions. OP275 ~ 3 Euro. As I managed to understand people mostly operate objective parameters on this forum. The OPA1642, SMT-only, is also a good dual BIFET. In PDIP form, 100 qty is 66¢; so about 2/3rds the price. The 2 part numbers read identically in all … 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. Output offset voltage (even without DC blocking caps) - about 1-3mV. Jan 10, 2016. LM4562 time record now made by a PicoScope USB oscilloscope. NE5532 is dual channel opamp, so you can try few of these: opa2134, LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. LM4562 worked great and DC offset was 3 mV OPA2134 oscillated. I tried swapping the original 5532 op amps for OPA2134 (purchased from Amazon) and amp sounded noticeably worse with the 2134s. Joined: 07 Jun 2008 12:23 amPosts: 5503Location: Australia. Volume control on the V3 is more subtle control over lower volumes. 00008% Total Harmonic Distortion + Noise O = 3 Vrms R The LM4562's outstanding CMRR (120dB), PSRR (120dB), and V OS (0. NE5532, OPA2134, LM4562, etc. 7mV max) than the OPA2134 (+/-2mV max), but the LM4562 also has a higher input bias current (72nA) than the OPS2134 (+/-100pA). As far as noise goes, depending on the impedance presented by the phono cartridge to the input, the LM4562 could be either quieter or noisier than the OPA2134. Sadly i've found controversial and … Hi forum I'm playing around with some simple headphone amps ( again ) with NE5532 vs. Hello, I would like to upgrade the phono equalizer in my Technics SU-V8 amplifer. com and all are unity gain stable. The OPA132UA is the best FET opamp that I know of. For one of the OP amp it's optimal with 1k and for the other one it's 2k. I use them in a few of my critical, audiophile/mastering gear circuits. the TL072 input noise V ~ 16 kOhm equivalent ~ 3 dB noise figure. This is my LM4562 based preamplifier. I thought the 2132 was a stereo opamp. 5V to ±17V. BluJay614: there isnt any competitor to Burson, Soarkos, muse, ti, analog devices, BluJay614: Ive also thought about the Magni Heresy, and noticed that it looks like the op amp (s) are not upgrade-able. LM4562 was totally lifeless in two devices - LME49860 was OPA2227 is terrible, worse than the OPA2134. com/open?id=1kzo6G9kJmkIaBmcjEtPp6dqDExES677MChannel animasi. 6. 12-25-2015, 03:28 PM. Anther, When we used opa2134 or lm4562 to replace opa1612, the distortion … The advantages of the V3 compared to the MAX: 1. The OPAx132 is the slightly better version for DC critical applications. Equipment Forums. Definitely in a class above the OPA2134 when it comes to real high end pro audio use. The photo shows the pin voltages, and the current old NJM4559DS. #6. OPA1612 is one the most low-noise opamps Dual OP Amp Board Preamp DC Amplification PCB DC Pre-Amp Amplifier Empty Board Module for NE5532 OPA2134 OPA2604 AD826 https://s. Each part has its specific specs tailored for the application. And it is a JFET opamp, which is always preferred by myself in the positions where slightly higher … LM4562 vs OPA2134 vs [ ? ] | Page 3 | Headphone Reviews and Discussion - Head-Fi. Not good. Originally we intend to upgrade it with opa2353, but apparently it wouldn't work due to this op using single 5v power supply. OPA2132 is very it's still very good op-amp - in my opinion probably even better than LME49860. com/user?u=12254451Mail Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power I noticed someone talking about an OPA2134 as a Joined 2001. General clean-up. Anyway, both chips are much beter than the tin can sound of TL072 - I had one around and I tried it. 4. Part Number: LM4562. over 6 years ago. The AD8620,627,637 are in a different league then the 4562. I'm trying to do Tyger23's upgrades to a recently acquired Audiosource Amp100, but Digikey and Mouser are out of (or 200 min. Joined Apr 7, 2018 Messages 1,059 Likes 2,053 Location Denver, Colorado. The document also shows detailed distortion measurements and the TPA3255 behaviour is weird at 6. And objectively LM4562 is better then OPA2132/2134, Forums. There are some major differences between OPA2134 and TL072; for one, since OPA2134 has unity-gain bandwdth of 8MHz vs 3MHz in case of TL072, there is a significant difference in the typical quiescent current: 4mA vs 1. 439598. They are surface mount, for easily replacement you would want socketed op amps. LME49720 sound is boringand too light. 74dB. It appears that the OPA1611/2 have a lower noise voltage Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip I'm waiting for your feeling about the opa2134 I'm building a pcm1794 multi dac but don't know New updated version of the Tag AV32R circuit. my first question is what Opamps can directly replace this? The LM4562 seems popular, and is used in (70 ma) and there are no obvious replacements as it has good gain (the same GBP (gain vs frequency) as the OPA2134). … 10. I still want to try (in the DAC I mentioned) the THS4051 and the OPA1611. LM4562 is the best performer in differential amplifier. Again, from known dealers or vendor like Digikey or Mouser, not Ebay or Aliexpress Click to … AD 823 VS OPA2132 LM 4562 is superior to the OPA2132 are you sure? LME49720 I threw them in the trash together with the LM4562 in crossover use. Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. So this would probably be my final contribution to A07 measurements. Ultimately, I found the huge amount of detail a The LM4562 A07 does work really well if you feed it with a good preamp like the Aiyima T6 Pro which also is flexible when it comes to op amps. Slew Rate: 9. Prodigy 30 points. I built an active XO for my new speakers with opa2134 and was not happy with the sound. I was ordered about 400pcs of these chips in SO8 package from Farnell and from Digikey within some years period. Greetings everyone, I just wanted to direct this question to the folks that post here who are audio electronics experts like Jim Williams as well as to the designers of new audio products like Tim from Buzz audio, Geoff Tanner and others who are gifted with electronics skills and great ears. Joined 2010. Indeed, 2132 and 2227 are very similar, and I guess 2134=2132. 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 … Compare using a fet opamp, opa1656 vs a opa2134, I see little reason why one would choose a opa2134 for a new design, maybe that's why TI asks so much because they want you to use the new tech, but it's probably the cost of the mfg process for that tech vs the new processes. Regarding the LME49860 - in my setup it's a sweet spot between the LM4562 and the LME49720 but I still prefer the AD797BRZ pair. The OPA2134 is more a better replacement for the TL072 when you need a FET type. Pinout of packages is standard - always the same. Small-Signal Bandwidth: 10 MHz. Replace the NJM4558 with a 8pin DIL socket, then you can experiment. You better spend your money on a … LM4562 and NE5532 show almost identical performance in I/V stage, while OPA2134 is 2 dB weaker. Best op-amp for audio The newer OPA134, OPA2134 and OPA4134 are excellent and work from a supply range of 5V to 36V. I have a old project of ultra low distortion oscillator, in this project, designer used several operational amplifiers of other competitor (Analog Devices). Thanks abraxalito, I must say I'm surprised at that - given how they measure I (not unreasonably) is apparently called LME49720. some opamps sound very similar unless you know what to listen for. It's only just barely rated for +/- 2. Will get another 20 years from it. If you can go with OPA2134 (dual) then go with LM4562 - it is exceptional amp. #24. All in all, I would stick with either the LM4562 or the OPA2134 since I know those chips work well for this application, and they are pin compatible with any DIP-8 parts. 0 nV Hz (Typical) DC Voltage Gain: 50000. Similar to the size of a typical DIP8 opamp, the V5i is the easiest plug-in upgrade for any audio … LM4562 in my revox player took more than 100 hours to sound good. Leonardo Cunha. Wide Supply Range: VS = ±4. The AD8620BR, is a very nice opamp and you should be very pleased with it. I found that OPA1612 was in the ultimate soundplus collection that's why i have change for it. Replaceable OP amp chips: SR3609SM, OPA2604, OPA2314, LM4562, JRC5532, OP275GSZ, OPA1612AIDR, etc. LM4562's are pretty astounding opamps. Joined 2011. However some manufactures (eg, NAD 3150) went for +/-18. Which TI op-amp would best suit. However, an OPA2134 is a good choice that will sound better than the NE5532, without any problems. OPA2134 has good tone and detail when in single mono mode ie with two op amps one per channel. The only drawback it's the input stage which is on bipolars. And assuming one can actually hear a difference at all (not part of this discussion), the … #1. 7mV max) than the OPA2134 (+/-2mV max), but the LM4562 also has a higher input bias current (72nA) than the … There are clearly sounddifferences between opa2604 and lm4562. Amir, if you want an lme49720 op-amp or two let me know and I will mail them to you. For bjt (transistor input) I would suggest he LM4562, NE5532 or LM833. great results running OPA2134's with at least 470uf Nichicon & 0. There are countless others, 4558, 4560, 4556, 2068 etc etc. The LM4562 is a superb dual op amp with very low noise but I prefer the OPA2134 for its sweet/musical sound. help to check the reason. WHONOES. Reactions: TheWalkman. You could also try LM4562 (same chip as LME49720 as recommended below). I put together a VCFS the other day and tried using two OPA2604s instead of the usual two OPA2134s, the first time I have attempted this. Replace output caps, or parrallel them with 0. #7. Is the 2134 the right choice. Nou nieuwe codering? Is wel net een ander opampje hoor. There are many dual opamps to choose from. Guest. Drives 600 Loads . ). I used R3,R9: 2k, R4,R10: 680R. Please note slightly lower noise and also … So considering NE5532, LM4562 and OPA2134, OPA2134 gives best measured results in AIYIMA A07. VAS and BUFFER stages with my Essence One DAC/headamp, like: NE5532, LM4562, NJR2114, OPA1602, LME49720, MUSES8820, MUSES8920, OPA2604, OPA1642 Muses02 vs BB OPA2134 in Topping A30 (single-ended to differential … I'm going to sidetrack my own thread and ask a question now about the various versions of OPA2134. In final have to say, that OPA1656 is best of the best in I/V for me to now. Distortion: 0. patreon. Used OPA1656 in I/V of PCM1792 in dual mono configuration. T. New articles New comments Latest reviews Author list Search articles. NJM4580 requires more care, usually a high-current not-too-fast FET opamp is suitable. On a more detailed note, since the 49860 has a wider operation voltage range, did you ever try running it in different voltages ie < 9V (battery) … I have a phono preamp based on the OPA2134 and wondered if the LM4562 could be used as a one for one replacement for the OPA2134. I. The third time I added in njm4585 very cheap but pretty good opamp in the comparison. New media New comments Browse Albums Search media. I should have done my research a bit better because because I overlooked OPA1612 which is purported to have superior performance compared to LM4562. Ik zelf vind dat de prijzen sowieso daar onder moeten liggen, … The LM4562 has a lower offset voltage (+/-0. For the best available sound quality, two OPA827's on a browndog adaptor is my preference. Prev. It pretty much blows away the old BB OPA2132. Lower values can be used if the opamps can drive low impedances with minimal distortion (e. When a FET is required, the OPA2134 is a better replacement for the TL072. The amp sounds and works fantastic. It seemed that the dynamics and details of the music were gone … Hi forum I'm playing around with some simple headphone amps ( again ) with NE5532 vs. I like the 627s but prefer the OPA637 for my own system. Before that, it was as sharp and cold as a swiss knife. LM4562 sounds much much better than the BurrBrown chips, however they also run much hotter. Nothing really magic about the sound or performance of the V3, but it is a good inexpensive class D amp particularly good for lower volumes and where the small form factor works. 1" apart. AC Voltage Gain: 2200 at 10 kHz. 9 dB re 5W/4ohm and 102. They have an amazingly clear, clean, 3-dimensional, and highly-detailed resolution to them. Search Head Gear. When used as a single dual stereo op amp I find the soundstage a bit flat and a thick sound. g. The AD8599 is on it way and some highly respect it. #81. It measures quite a bit better than the opa2134 in a variety of areas and has the same pin configuration, which means they are directly swappable. I only found that the OPA2227 is dirtier. Input Noise Voltage: 5. com Last edited: Feb 24, 2024. 0 V/s. 'Stereo' in the sense that there's a little difference in what is coming out of the right and left channel. Why is that? Kindly enlighten us to give an … Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power Supplies More V/uSec does not mean automatically that it sounds I expect their noise and distortion to still be inaudible. I'm playing around with some simple headphone amps ( again ) with NE5532 vs. The LT1028CS8 is what I use now and it's excellent. With that said, it sounds like there shouldn't be a problem. I tested three op amps in the circuit: NE5532, LM4562, and OPA2134. NE5532 it is a very good opamp. If you have the device service manual check the circuit around the opamps and compare it to the suggested LM4562 layout. I have been told to use the TI OPA2134PA and they mentioned it is a "solid upgrade" to the LM4562, … 2006-12-27 7:40 pm. LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. Except opa1656 rest of opamps are available on rsdelivers. I'm no op-amp expert but I believe LM4562 and OPA2134 in your list are duals, NE5534 is a single I think and NE5532 is the dual. The measures have their reason that the … JLCPCB Prototype for $2(Any Color): https://jlcpcb. Posted: 02 Sep 2013 6:21 pm. datasheet (link below) doesn't explain what the difference is. org). gif The THS4031 is luminous sounding, 2011-04-17 3:07 am. If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. 1mV) give the amplifier excellent operational amplifier DC performance. 13. Het gevolg was dat de offsetspanning ging van 7mV naar 100mV, geen groot succes dus in een condensatorloos ontwerp. Forum member KSTR gave me the hint to use a groundplane instead of … Een opa2134 is te koop voor 1,75 euro en een lm4562 voor 3,08 euro (http://www. #10. I talked yesterday to my buddy Greg B. Best SQ have with 1656. DIY (Do … Other Parts Discussed in Thread: NE5532, OPA2134, LM4562, TPA6120A2, OPA2604, OPA1652, OPA1612, OPA1662-Q1, OPA1622, OPA1688, OPA627 I am putting together a solution for a pc based hi fi audio system utilizing low impedance headphones. Joined Sep 4, 2021 Messages 7,652 Likes 12,887 Location UK/Cheshire. OPA1612 ~ 6 Euro. OP . 4mA, respectively. As Tangent said, 2227 is a bit tighter in the lower end, but my ears find 2132 being a tad more transpartent and detailed, with crispier highs. Forums. Also "good" can mean different things. I like the phono preamp (an Acoustech PH-1P) but couldn't help wondering if the LM4562 would make an improvement. Gallery. For instance, the OPA2134's sound nice, they have a high frequency "gloss" that most people do find appealing but it is actually distortion. (NOTE: We once owned a recording studio together back in the late 1970's through the early 1980's. amplitude measurements of my AIYIMA A07 TPA3255 amplifier, with LM4562 opamps (reduces noise and distortion slightly compared to original NE5532), powered from Mean Well RS-100-24 SMPS set to 27Vdc voltage. Output Drive Capability: 600, 10 VRMS. 2013-06-30 1:38 pm. G'day all, today I swapped out the OPA2134's in my DIY P06 and replaced them with LM4562's. If your opamp it is not in that place, after a potentiometer, then you leave it , dont change it. They look nice to me, but Digi-Key stocks 2 slightly different part numbers. 5V operation, but it's a very good chip. I don't think I'll be jumping opamps soon. aiyima. 67 at Mouser) is a drop in replacement for the NE5532. LME49720 is significantly more expensive than LM4562. … Hi forum. Aug 31, 2021. Deleted member 9685. Other Parts Discussed in Thread: OPA2134. 2015-01-10 11:33 am. I found that these two ICs had similar parameter, but some difference: OPA2134: lower noise(8nv, 2604 is 10nv), lower distortion(0. Marketplace. NE5532= very organic, natural sound. ac analysis stalls. Anyway putting those two together doesn't work - in particular can't find DC op There are many that are good and many that excel in specific areas. 5. Might be interesting to do op-amp comparisons in the future on various products (the FX Audio DAC-X6 is … Hi forum I'm playing around with some simple headphone amps ( again ) with NE5532 vs. #162. 3" apart of 4 pins each 0. According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. ti. LM4562, and OPA2134 I like the resolution of the LM4562, however, but their actual RFI rejection, which is very poor for the LM4562 compared to most bipolar opamps even Nov 19, 2015. You can use a combination as well. Where as the LM4562's are very clear in the upper range. I last tried the circuit with OPA2134 in year 2000, and with TL074 in 1992. I've used both LM4562 and OPA2604 from the suggestions. However I've used the LM4562 in a number of audio projects of late and whilst I concede that it is a very low noise dual op amp, I'm not sure about its 'sound quality'. (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. 5 to ±24 V. You can replace NJM2068 by LM4562. Now all the folks are using opa2134 op -amps as the replacement. at higher source Z the V noise of the op amp is even less important and the noise figure can at best only asymptotically approach 0 dB (eventually limited by current noise equivalent R as high as GigaOhms) paying extra for 1/2 the input Vnoise (OPA2134 vs TL072) won't move … Other Parts Discussed in Thread: OPA2134, LM4562. Share Jan 28, … Yes, the noise of the NE5532 and the LM4562 is equal at 3KΩ source impedance; below that, the 4562 is better, above that, the 5534 is quieter. In phono, it is all and then some. Alternate OpAmp to TI LM4562. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. So that's good For your circuit, a 5532 or 4562 is about as good as it gets. 0 to 20 V. Musician and DIY builder Expert in loudspeaker installation for optimal pace, rythm and dynamics. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. 10. I tested a few in both units and the best combination to my ears at least is the opa2604 in the output stage of the T6 Pro and the LM4562 in the A07. 47uf PP film directly from each chip's supply pins to ground. I have made a thorough THD and IMD vs. aiyima aiyima tpa3255 power amplifer. I am using these chips for ultra low distortion audio range sine oscillators … The ones I subbed were LM4562's, which work fine with the Aiyimas. Tried in this place OP275, OPA1612, OPA1642, OPA1656 and OPA828. I tried a couple different Opamps like the NE5532 and the OPA2038 (I think this is the wrong number), but the LM4562 and the original OPA2134 sounded the cleanest. OPA2134=Detailled, precise, analytic sound. There is sufficient buz about the LM4562 to at least check the possibility out. Certainly the sweetness/musicality Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power Supplies Headphone but I do not need blind testing, the differences are obviously. Site Site Announcements Forum Problems & Feedback Terms and Rules. It is probably 8 pin DIP thru hole plastic package (2 rows 0. Same spikes, every 10ms, are visible. Although many people consider the NE5532 to be an old component and try to find a new one to replace it, the NE5532 is still adequate for most applications. gif OPA2132 is a way better in everything than OPA2134 and sound signature is very different. If you use TL072 opamps, … Forums. Joined Mar 27, 2022 Messages 920 Likes 2,688 Location Milano Italy. 4 Electrical Characteristics At TA = +25°C, VS = ±15 V, unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT AUDIO PERFORMANCE G = 1, f = 1 kHz, V RL = 2 kΩ 0. Just to add to your list, the OPA2134 ($2. 83 k : 100 : 150 : 22 nF//4. the best sounding is OPA1612 ,not for driving headphones -low output current drive ,3ma current consumption. They are the three that are the consistently best performers. Trust the measurements and not the prices. 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 comparison, if that makes any sense. Not bad, but not the LM4562 level at all I leave some burning-in time yet, but I don't think that opas Forums. NE5532 Features. There are several motherboard designs that are emphasizing high impedance … I've owned several other Class D chip amps in the past, including the Aiyima A07, SMSL AO200 and at least a couple different TPA3116 Topping and SMSL models. I´m still chewing on my layout for a 6 channel preamplifier with LM4562 (or OPA2134). The price for the new LM4562 also dropped significantly at the beginning of 2019. I never liked the OPA2134's but in certain circuits they are as good … If you can use a bipolar OP, the NE5532 is usually the better choice than a JFET OPA2132 / OPA2134. However me being me, I want to optimize the most out of the 222ESA and the OPA2134. I have a pre-amplifier built using NE5532 with excellent performance The same is true about the LME49722, and others (LM6172 above all). 2010-06-08 9:23 am. Thread starter pma; Start date Jan 7, 2021; Tags There are clearly sounddifferences between opa2604 and … Misc. Topping D50S dac. 1. Now i tested opa1612 with lme49720 and 1612 is better in my opinion. Thread starter ROBSCIX; Start date Jul 4, 2009; I got the LM4562 Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: … 2008-04-11 2:54 pm. The NE5532 is definitely much better, and I really tried hard to find differences past the NE5532. OPA1612 too expensive. I've studied around in different forums and found information about … Jan 7, 2021. I won't burn my fingers on them but they are noticeably hotter. OPA2134 OP amps. Similar sound to OPA2134 but better control in the bass. 00003% when its gain is 1 like a piece of wire. Hey all, I've been doing a lot of Random Source Serge DIY lately, and really getting in-depth with the filters and ResEQ. Agree with previous post, fast, detailed, revealing and neutral. That was the circuit where the OPA2134 Member. To utilize AD8620 requires some knowledge on the circuit. Reactions: TCSC47. OP275 seems to me chaotic. org. who builds large PA speaker systems. I use to use a mix of carbon film and metal film in my gear but stopped when comments were made about carbon being noisy. M0N May 1, 2020, 11:46pm 2. This I found out with the LME49990 experiment I stated just above. Oct 2, 2021 #24 was the lm4562 ( the others I tried: opa1642 opa2134 and opa1612 ) Last edited: Oct 2, 2021. Correct me if I'm wrong. Head Gear. NE5532 worked great but DC offset was 45 mV. asc to the Temp file, under the name "compare LM4562_OPA2134" I've used the basis of two existing files that seemed to work, although the LM4562 . Greetings, I'm experimenting with few amp. 7 nF//500 pF 47 nF//33 nF LM4562 www. 4kHz bandwidth Here we see that the LM4562, LM833, LM49720 and OPA2134 all have the … With LM4562, the noise was -74. it is so long since I designed with a FET op amp that the TL072 is the only one I remember and I … Member. Input buffer and … The Prelude also uses a LM4562 for the Front channels. Project Author. Dear Amplifiers team. … But more importantly, it depends on abstract-ability not differentness. If a FET-input … #1. Dears . So I was curious how it would sound. The LM4562 has a wide supply range of ±2. One can almost not find two more different sounding IC:s. 2020-01-24 6:34 pm. To my ears, it sounds much better and has good bass. LM4562, even the Picoscope low resolution spectral analysis catches the spikes and repetitive spectral lines every 100Hz. Advice welcome to adapt the circuit for a LM4562 at DAC output. google. This, IMO, might touch the audibility level … Also, since this chip is a single opamp package, it won't be pin-compatible with either the LM4562 or the OPA2134 if you need to swap out the chip if stability problems arise. Likewise, resistors values should be between 2. They both use standrad +/-15V supply volatge - you can try them as a drop in replacement but the performance will depend n the circuit that they are used in. com SBOS058A –DECEMBER 1997–REVISED OCTOBER 2015 6. 007% SNR：≥110dB Input sensitivity：1V AUX Maximum Output level：1V Frequency … Site Site Announcements Forum Problems & Feedback Terms and Rules. Audio . LME47920, LM4562, OPA2134, OPA2132 DIP8 opamps, or SOIC8 on adapters like OPA1656, OPA1678. 2k and 22k. designs and one of the boards I ordered (based on TI Tas5613) use two JRC NE5532 opa. Joined 2013. 002% Signal-to-noise ratio: 90dB Frequency response: bass ±12dB; treble±10dB Input sensitivity: 0. #1. You probably don't need any compensation caps if your layout … By newer I meantnewer, because OPA1612 is a newer design then let's say NE5532 or even LM4562. Hi Folk! Is the LM4562 really good at DAC output use? Or its spec need a special design for best use? For testing purpose, I installed this op-amp in different … As noted above, low values become susceptible to stray capacitance and high values may cause excessive opamp loading. com SNAS326K –AUGUST 2006–REVISED DECEMBER 2013 LM4562 Dual High-Performance, High-Fidelity Audio Operational Amplifier Check for Samples: LM4562 1FEATURES DESCRIPTION The … The 1656 just went berserk! “Somethings wrong and I have to use all my horsepower to fix it right now!”. Any other direct replacement with better TI’s OPA2134 is a SoundPlus™ Audio Operational Amplifier with Low Distortion, OPA137 — Single, 36-V, 1-MHz operational amplifier with rail-to-rail input to V+ OPA141 TI E2E™ forums with technical support from TI engineers. If you don't mind forking out a few more dollars, OPA2107 is very nice indeed. I'm looking into the idea of … Feb 26, 2023. I wonder if the 4562 and 49720 are manufactured at different plants. Ik heb net in een phono-pre een OPA2134 vervangen door een LM4562. The LM4562 has a rated distortion of only 0. The NE5532 supports a max supply voltage of +/-22Vdc and a nominal supply of +/-15Vdc. Ook prima … Norfolk - UK. Noise free and transparent sound - this is what I can say after first tests. #2. 9dBV (24kHz), which would make S/N 87. I'm still (perhaps irrationally) fond of the OPA604, maybe because some equipment I really like … #1. #123. Originally Posted by Horse /img/forum/go_quote. This PCB can be used for every dual op-amp. Another way to say it: JFET OPamps like OPA2134 can … However, few dB, so still far from NC400 e. If I'd imagine, the njm4585 is a tiny little sticky sounding in the highs and less clean. 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. For FET input the OPA2604 and OPA2134 types are recommended. ••• Posted October 17, 2014. Sound is more "color", and "massive". Also, if you use SOIC (D) package, TL072 thermal resistance is 97C/W vs 150C/W in case of … Forum Donor. Dec 15, 2017. OPA134, OPA2134, OPA4134 www. A bit more poking about on the forum suggests that this is the LM4562 simply renumbered to give it a presence in the newer … Best opamp for my CD player Enzo I don't know about the best opamp for your player,for reasons mentioned in the previous reply by Crippled chicken. Audio, Audio, Audio! Amplifiers, Phono preamp, LM4562 (and OPA2134) option. Part Number: OPA2134 Other Parts Discussed in Thread: OPA1678 , OPA1611 , OPA1602 , OPA1642 Hi there probaly a simple … LM4562: Zo SPICE Test of Op Amp Macromodels. Quiet with a Grado, noisy as … 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. Aiyima have confirmed they are the same analog linear potentiometer as the V3 but the sensitivity of the A07 MAX is twice that of V3, so while the A07MAX volume is nicer than previous Aiyima Amps but IMO the volume on … G'day all, in my various DIY phono stage projects I've tried a number of different high performance dual op amps and the OPA2134 is a favourite. The LM4562 is decent but the LME49723 sounds better. There is basically no difference between njm4585 opa1612 and opa1656. Large Supply Voltage Range: 3. Moderator: Beheerdersteam. For example you could run half a dozen TL072's for the current one NE5532 or LM4562 draws. Depending on the actual application circuit, there are alternatives with better noise performance. Groeten, Mischa. Forum Donor. 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. Below picture is the Sch , and the distorted waveform is attached vedio. I've studied around in different forums and found information about differences between the resistor value going to ground. LM4562, LME49710, LME49720 Start-up Behavior - Pro Audio Design Forum Despite their warts I still use the LME49720 in the Dual Class-A II line/headphone amp. Bottom line, check the supply voltages, pin 4 and 8. Featured Vendors AD8066 vs LM4562 I am using an AD8066 in the O/P stage of a Musical Fidelity X-DAC I tried the LM4562 in a preamplifier instead of the original design's OPA2134. A low impedance cartridge (like, say a Grado) will run quieter with the LM4562. PC > Dynalo > AKG K701. Part Number: LM4562 Other Parts Discussed in Thread: LME49720. Frustrating. 84vRms Speaker impedance: 4-8Ω Output power: 300W*2/4 Ohm Input mode: Bluetooth, RCA If you're up to soldering surface mount chips to adaptors (if you're unsure, that's a no, but maybe you know some-one who can) also consider AD8066. Where it did seem cleaner. New items New comments Author list Series Latest content Latest updates Latest reviews. Well, if I was imaging all those … I have a LM4562 in mine vs the OPA2134, I did tend to prefer the sound in some specific tracks. I am after clarity etc, improvement over the old JRC. i tryed lme49722 opa2134 and opa1612 , --. The LM4562's outstanding CMRR (120dB), PSRR (120dB), and VOS (0. I always understood carbon film resistors made better grid blockers. May be 828 will be better, but i have to do some thing in the board to extract best of it. 2). Over this supply range the LM4562’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input … Highs were a bit tapered off vs the LM4562, but not at all a major trade off. I am often asked about op amp based gain make up circuits for my passive EQs and I always suggest the TL072 because it has a FET input so it will not load the EQ which prefers a high impedance load. Over this supply range the LM4562’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input … The NE5532 is a Bipolar Input op-amp, whereas the OPA2134 is a FET Input op-amp. . #11. I still have 2134 on the low pass outputs so I can very easily feel the difference in temperature. Feb 24, 2024 #2,602 RT3609SM, OPA2604, OPA2134, LM4562, JRC5532, OP275GSZ, OPA1612, MUSES01/02/03 www. 11. Next. Both of them are way better than NJM4558. If it is well implemented, non prone to oscillation, with high input impedance and within supply specs, it should work well. Replaceable Op-Amp Chips:OPA2604AP, OPA2134, MUSEO1/02/03, LME49720NA, LM4562, AD827AQ, etc AUX OUT: active nsubwoofer or power amplifier 3. It made relatively little sonic difference except that when the Frequency knob was … The best popular SINAD 5W/4ohm result so far, with this amplifier. Sponsors. 5Vdc. I no nothing about this. wq kc wa cg dl bl fy rf do un