Opa1612 vs lm4562 . It doesn't say or show in the datasheets. Haven't tried the new OPA164x series, but word is that they sound good. - LM4562 seems to have I've read about the 'Sondigo vs. My favourite dual is OPA2604 and that's what I use in my CDP. It can be replaced but you'll get diferent sound character. I got curious today and decided to try and see how our old friends compared against the latest and greatest (?) chip. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. Also, based on my measurement of XLR output and HP out, the power supply is a bit noisier than I expected. These would toast at +/-20V so minor tweaks of the power supply/voltage dropping resistor may be needed. L. What's new. In spite of buying new ones I considered Restorer-John's advice and decided that it the smartest thing that I could do was listen. 0nV, or -120. 1K. Musician and DIY builder Expert in loudspeaker installation for Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. How to choose between lm4562 vs ne5532. Over this supply range the LM4562’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The hiss is slightly higher from Aiyima a07, but still very low. Last photo, a blurry shot of the first power up. The data sheet is very handy for audio designers working with 600Ω loads, but also presents apparently conflicting specs, and lacks 2KΩ load data. Mark Tillotson. Here are the measurements of the dual mono and with different op amps (Sonic Imagery 994, OPA1656, LM4562). Warm Mids (Deep and Full) . Dec 27, 2019 #7 The OPA1641 would be slightly better. 7nV and 1. OPA891 is a the OPA1612. 基本的に今使っているlm4562の評価点を1. One other very noteworthy difference is the Vivid has a strong attack, but loses a bit on the decay so sustain is better on the SS360x. Opa1612 and LM4562/LME49720 are both good. Joined 2017. IMO, the ADA4627-1 has a fuller, more "musical", sound than the somewhat thin/sterile LM4562, whilst still retaining nicely detailed highs, and remains my favorite sounding op amp to date. Tom. 2012-05-14 -1- High Quality Audio Dual Operational Amplifier GENERAL DESCRIPTION PACKAGE OUTLINE The MUSES8820 is a high quality audio operational amplifier, which is optimized for high-end audio and professional audio applications. Posted April 7, 2020. NE5532 (5nV and 0. The OPA1612 is nice as well. rrrremus. 01% LM4562, LME49720 and LME49860 are basically the same opamp. Lexus RX comparison), doesn't make one necessarily I tried the OPA827 too - too bland and lifeless. There is a whole family of LME parts of op. Joined Mar 8, 2018 Messages 331 Likes 264. Any chance you have some measurements of the OPA1612 compared to the Sparkos SS2590 for the regular dual mono? I was also curious how many of the SS2590 opamps are The LM4562 is part of the ultra-low distortion, low-noise, high-slew-rate operational amplifier series optimized and fully specified for high-performance, high-fidelity applications. What I would like to know is how much validity in these two pieces of The LM4562 is part of the ultra-low distortion, low-noise, high-slew-rate operational amplifier series optimized and fully specified for high-performance, high-fidelity applications. THD+N Ratio vs Measured Level / Inverting 6dB Gain / 100k load / 22. LM is the best overall, it sounds the most balanced, very natural/smooth/clean, doesnt exaggerate anything but can sound lacking in impact. The sparkos opamps are very good as well but are IMO sonically warmer than the Sonic Imagery. Members. vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage. Those are fine. A couple of last thoughts. Joined 2007. ti. you have to decide which things are more subjective vs objective, but I find the list of op-amps there a good The latest op-amp that I am still using until now is LM4562. It is the best for audio preamplifiers, active filters, and line amplifiers Other Parts Discussed in Thread: NE5532, OPA1602, OPA1612, OPA1622, OPA1662, OPA1652, NE5534, LM4562. J. Central Scrutinizer. Cheers, E. On some of the newr parts TI has released measurements of the EMI immunity, e. LM4562 -- not by a very large margin ! 2. 5 ). 2017-10-09 2:40 am #13 2017-10-09 2:40 am #13 There is no "bad labeling" on the PCB. OPA1611, OPA1612 www. Joined Mar 5, 2019 Messages 155 Likes 253. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for fun. NS/TI folks, including those who were directly involved, have verified that both chips have the same die, go through the same manufacturing and test flow, and the only difference is the The OPA1612 is the current audio bee's-knees. 4" plug). Jul 17, 2024 #282 canard said: with lpf onlyoneme,no ? Of course. onlyoneme Major Contributor. Change from NE5532 to LM4562 there those who did just that. LME49720 Vs LM4562. 000. The OPA1642, SMT-only, is also a The OPA1612 does not seem to have the process contamination of the LM497X0 that produces rocky-sounding noise. tnt-audio. Which is fine. SoundOfSound Super Member. The 5532 has a slew rate of 10v/us, or about half that of the 4562- and it's very hard to see why this is important for any audio applications as the full power bandwidth for the 5532 with 15v supplies is about 110kHz, and that's with >9vrms at the LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. ArthurDent. Overall, don't recommend opamp rolling. 9 nV/√Hz at 10 kHz I would try OPA1642, LM4562, OPA2228 or OPA1612. LM4562's. Joined Oct 20, 2022 Messages 2,915. Thanks in advance. Theme - Light; YYYY-MM-DD / 12-hour clock; Contact us; Terms and rules; lme49713 vs opa627 vs AD815 vs opa2134 vs opa1612 vs opa2836. M. The OPA1641 would be slightly better. The chips were put into the active filter at the output of a DAC ( Zhaolu V2. LME49720 4. Top. Choosing between the LM4562 and NE5532 depends on your specific application requirements and priorities. LM4562 max safe current. Other Parts Discussed in Thread: LM4562, , INA1620, OPA1622, OPA1656, OPA828, OPA1642, OPA1678, OPA1612, BUF634A. dotneck335. brjoon1021 Member. This will also The LM4562 (same die as the LME49720) was designed to produce a low open loop distortion - likely better than a 5532. Pardon if any of the following has been covered. OPA627AU. Some will point out the OPA1612 (which is even better) or the OPA1656. Unless you consider the OPA1612, LT1028, LT1115, 1N A217, or the THAT 1580---which are ALL quieter in a phono stage. OPA2211A/OPA1612 also sound a bit better than LM4562, IMO. 2 μV/°C OPA1612 VOS over temperature, Typical 1 μV/°C, Max 4 μV/°C They are different. 2024-02-02 4:26 am #1 2024-02-02 4:26 am #1 What's the difference between LME49720 and AIYIMA A07 TPA3255 Amplifier Measurements LM4562 option I received my A07 yesterday, on January 6, 2021, shipped from Italy. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically OPA1652 and OPA1688) hunting for muses8920とlm4562の比較. I ended up not linking that at all. Logged but the tangentsoft guy does do real engineering work. LM4562, and NE5532, and OPA2134 sounded the best. Burson V5i-D better than OPA1612 stock Xduoo XD-5 . Reactions: amirm and Sythrix. i will second the notion of the opa1612 being audibly superior to the ne5532 its a huge difference my daughter who patiently sat through with NE5532, OPA1642, OPA1656, and LM4562. RayDunzl Grand Contributor. Find parameters, ordering and quality information High Quality Bipolar-Input Dual Audio Operational Amplifier for High-end Audio Equipment. At the risk of immediately coming across as exaggerated and/or hyped -- the "battle" was simply an epic slaughter! I just noticed today on the TI web site that the OPA1611 (single) and OPA1612 are finally it's interesting to note that the OPA1611 equals or exceeds the LM4562 in everything except Even if the base designs are similar or one is based on the other (as in the Highlander vs. Share Reactions: LaughMoreDaily. NE5532AN. 1 nA/ IOS Input offset Again the urban legend (fake news?) surfaces. com/blogs/news/opa2156-hifi-in-cmos. I didn't investigate further, and I didn't have the OPA1656 nor the 1642 to try. Joined 2012. Correct me if I'm wrong. OPA1612 is one the most low-noise opamps ever built, so totally recommended The newer LM4562/LME49720 series improves on many parameters at once In SMT the OPA1612, rated at 40V absolute maximum, is a very good part. OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. Reactions: Euphonic_employee, Xulonn, Speedskater and 5 others. Tom . It's best use as an alternative to opa1612 when noise is not a big concern. All op amps in the signal path are LM4562. Also, according the data sheet, OPA1612 I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM 4562 in both Aiyima a07 and the tpa3251-based Aiyima a04. The best specification dual op amp you can buy. Share Apr 28, 2011 at 3:32 PM. The LM4562 is unity gain stable. Last edited: 2020-08-22 8:18 am. the OPA209 family. Lm4562 ( 5 Pcs ) Original Digi-Key Ne5532 ( 10 Pcs ) Original Digi-Key 2068D JRC ( 5 Pcs ) AD827JNZ Aliexpress also has successful opamps made in China, for example Oracle II 02, this opamp has a similar sound to Opa1612, I bought 10 pieces, the full price is performance, Other Parts Discussed in Thread: RC4580, OPA2209, LM4562, OPA1612 Hi, I would like to upgrade the opamps of my Behringer SCR2496 which have six "4580 A338F JRC" opamps. 1 k : 3. LM4562, LME49710, LME49720 Start-up Behavior - Pro Audio Design Forum In SMT the OPA1612, rated at 40V absolute maximum, is a very good part. I have a Technics MASH cd player with the SMDs type of opamps needed. lsisaxon. The price for the new LM4562 also dropped significantly at The different players sounded different. I have some experience swapping ne5532 in Aiyima amplifiers to opa 1612 and lm4562, and the soundstage more exact with opa1612. Whether an opamp will perform better or worse than the LM4562 in a particular application depends on the application. LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. AD8672 and OPA1612 are also very good opamps for use in LPF. I'm still waiting for OPA1656 in the mail. #1 Choose the LM4562 (LM4562 vs NE5532): High-End Audio Buy DLHiFi SX52B Fully Discrete opamp Replace OPA1612 LM4562 NE5532 AD827 For HiFi DAC Headphone Amplifer Phono Crossover Preamp at Aliexpress for . 5V operation, but it's a very good chip. LM4562 is always worth a try as it produces very high quality results but can be a touch susceptible to being upset by • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. output power sweeps into 32 Ω load, with low (0 dB) and high (10 dB) gain settings. The OPA1612 is more robust against EMI than the LME49720. I think this can be a good setup. Some have voltage requirements that make them only compatible in certain designs, Looking at the web page for LM4562 this morning I noticed that TI is marketing a device called OPA2891 as an alternative device. Bauhausler Rational Subjectivist. I have not tested the OPA1612 with high value bias resistors to see if it has the latch-up/bias current correction start-up issues of the LME49720. Jan 11, 2021 at 2:01 PM. The LM4562 has higher 2nd harmonic (if that is what you wan´t) but higher 5th too. com SNAS326K –AUGUST 2006–REVISED DECEMBER 2013 LM4562 Dual High-Performance, High-Fidelity Audio Operational Amplifier Check for Samples: LM4562 1FEATURES DESCRIPTION The LM4562 is part of the ultra OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. Newk Yuler Active Member. com). try modding with better FET input opamp, like OPA2107 or OPA2111 . IÍîêz~õ ? 1/š±(šEîÌcŽ?«ä‘ëD í ‹=& žk !œ‹@ ö £sZ µå ìSØUÂpÇ ŸÚ_öß!ÄSw wŒéBÉ xNpP ½á —û) ‡(h{„ ¼úÉ ã oÍu B| Šyˆ‚ s? óI)¢' ñÀéøÀi oÿé 2í í0çÜõ öð~ð±ºûÀc@¶ ö@«ãÐ C ƒ Anyone know whether the LM4562-LME49710-LME49860 series are PNP input or NPN . 2 μV/ PSRR Average input offset voltage shift vs power supply voltage ΔVS = 20V (3) 110 120 dB ISOCH-CH Channel-to-Channel isolation fIN = 1kHz fIN = 20kHz 118 112 dB IB Input bias current VCM = 0V 10 72 nA ΔIOS/ΔTe mp Input bias current drift vs temperature –40 °C≤TA 85 0. If you want discrete, then Sonic Imagery 994 or the Weiss op amps. In terms of noise performance in the real world the OPA1612 beats the LME49720. B. LM4562 Average Input Offset Voltage Drift vs Temperature 0. 00とします。高音域、中音域、低音域、解像度、横方向の広がりについて、感じた音の差を数値化して表します。 なので主観的な測定値になります。ちなみにlm4562の音は非常に気に入っています。 drift vs temperature –40 °C≤TA 85 0. PC > Dynalo > AKG K701. Home. New posts Latest activity. Tpa3251 has lower hiss. We have released the MUSES8820, mass production model of MUSES Series, offering finest sound to audio fans more widely. 01% You could also try LM4562 (same chip as LME49720 as recommended below). 1. as soon as I try these too). Now they seems to have changed again to opa1612 in many places - maybe a suggestion to try ? I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM 4562 in both Aiyima a07 and the tpa3251-based Aiyima a04. The LM4562 audio operational amplifiers deliver superior audio signal amplification for OPA1612 tai LM4562 opampeilla, tein molemmilla kaksi laitetta ja mitään eroja en löydä etsimälläkään, vaikka näistä tuo OPA1612 on reilusti kalliimpi ja suunnilleen kai toiseksi parasta mitä koko planeetalta löytyy. OPA1612 is bipolar input opamp. Hi, I am working on a new product development, and am experiencing excess noise problems with certain samples of LME49720. Joined 2018. 5nV/√Hz at 10kHz • Fast settling time: – OPA627: 550ns to 0. 4dBu EIN. You can use a combination as well. Opa1656 has good phase response at high frequency. 5V, RL = 600Ω 30057921 Voltage Noise Density vs Frequency +VCC = –VEE = 15V 300579p9 Voltage Noise Density vs Frequency +VCC = –VEE = 18V 300579q0 Current Noise Density vs Frequency +VCC = –VEE = 15V 30057917 Current Noise Density vs Frequency Whether an opamp will perform better or worse than the LM4562 in a particular application depends on the application. I've built several. 98: Posted on November 12, 2018 at 22:44:48: bobwire Audiophile Posts: 354 Joined: March 7, 2002. We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Joined 2009. 6pA per root Hz) gives 739. 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. It took about 3 weeks to get to me and arrived in a small bubble mailer from China, which is on par with most items that I order from China. ). I had multiple ones built and did not test A/B but one at a time with known test tracks. 2019-10-26 2:21 am #15 OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. That said, a few people consder the OPA637 an 'upgrade' from the AD8620. Dec 29, 2023 #85 Thank you . X-fi Prelude' comparison a few threads down and I basically concluded from that the AD8620 might be considered better than the default LM4562. This has been dispelled by people employed by NS and TI -- back then and currently. Burson V5i-D and Muses02 are very good But balanced sound not heavy bass. These days the likes of OPA1642 / OPA1612 are routinely used, Replacing NJM2068 and NJM4580 by AD8620 or LM4562. tk421storm. At a price. 4kHz bandwidth Here we see that the LM4562, LM833, LM49720 and OPA2134 all have the same level of performance with the NJM2742 having the worst performance of the bunch and the LT1352 being just slightly worse. so with a -12. Post #7,039 of This will kind of be a comparison of the OPA1612 to the Burson V5i. Forums. I still want to try (in the DAC I mentioned) the THS4051 and the OPA1611. com SBOS450C –JULY 2009–REVISED AUGUST 2014 5 Pin Configuration and Functions D Package OPA1611, SOIC-8 D Package (Top View) OPA1612, SOIC-8 (Top View) DRG Package OPA1612, SON-8 (Top View) (1) NC denotes no internal connection. The only thing better with the LM4562 NA OP amps was that the voices had a little more three dimensional effect and the voice and music was pushed forward a bit towards the listening position. The LM4562 and LME49720 are IDENTICAL except for the ordering number and marking. Two LM4562 operational amplifiers mounted on DIP-8 support (removable). diyAudio Community diyAudio Store. Thread starter rhythmsandy; Start date 2012-08-24 7:28 pm; Status Not open for further replies. I strongly suspect that the LM4562 has a more sophisticated input stage than the 5532, probably incorporating cascoding to minimise the effects of common-mode voltages. Results . Also comparisons of the OPA627 and OPA637 would be good. 0014% THD (see Figure 4. It's only just barely rated for +/- 2. Anyway, this is a very good measurement result. Read more. I searched for some graphs but did not find any. Pin can be left floating or connected to any voltage between (V–) and (V+). Last edited: May 23, 2018. You can see this in the specs for the tpa3251 and tpa3255 used. I love details clarity, soundstage - listen to rock classical and vocals. How much that affects the signal integrity I don't know. However, I won't swap to an OPA1612 because I am sufficiently I have switched from the OPA2228 to LM4562 only because the LM4562 is Obviously, the circuit topology will make a difference however, I've found that A comprehensive comparison between OPA1612 and OPA2156 (and other opamps) could be read here: https://quantasylum. Will report back once I make any conclusions. Member; 4. 2024-02-05 5:54 pm #5 2024-02-05 5:54 pm #5 Its surprizing the output current limit is as high as 66mA when it has difficulty driving SMSL SU-10 vs M500 MKIII vs DO300 21 vs 9 vs 11 dual op-amps OPA1612 (accoring to the spec from smsl-audio) What is the Op-amps doing in that? M500 SINAD Reviews. warm, revealing, etc. I don't care about listening tests or something else, just want to use the technical better one in my amp. Operational amplifiers are specialised amplifiers that have high input impedance, low output OPA6x7 Precision, High-Speed JFET Operational Amplifiers 1 Features • Very low noise: 4. Again, I didn’t bother with the expensive OPA2227 or LM4562 as they just FWIW, I'd suggest OPA827 (x2) or OPA1641/42 for TL072 and OPA211/2211A for NE5532. 6 ) but the LM4562 gives only 0. ground. I got Noise is almost same as with LM4562 and there are no problems with distortion. I note that the LM833 and LM4562 datasheets contain identical RIAA phono circuits in their application notes. MUSES8820 Ver. Joined 2005. The LM4562 datasheet indicates it has at least 12dB greater open loop gain than LM833 at all audio frequencies. At least it lacks the unfavorable 7th which the OPA2604 has. Concerning the relays. Saw on ti site a recommendation for the recent opa2209 to replace "RC4580". Part Number: OPA1622 Other Parts Discussed in Thread: LM4562, OPA211, OPA210, THS4031, OPA1612, , OPA828, OPA2210, OPA1637, LME49860, THP210, TINA-TI, OPA1602 Would this work IRL? Anything to look out for? Suggestions for improvement? • The ideal amp for the duty the OPA2211 is performing here would run at a minimum of 40MHz, or OPA1612 Q1 AD ? But I'm open to any suggestions you might have. The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. LM49720 vs. The LM's, like other op-amps that I have used have 4700uf caps at each power pin. The new LM4562 also has very low input bias currents, and you can safely direct couple low value pots (10k or LM4562 3. The Burson V5 is a Class-A discrete opamp, showcasing Burson Audio's commitment to superior audio engineering. 2009-11-28 11:25 am #11 Should I expect any improvement from the OPA1612? Thanks. 2k Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. Not sure what else there is to test, The OPA1612 is BJT, I'm using 2 equivalent OPA1611 for my amp atm. OPA2134 and a few Sometimes I change from OPA2209 to OPA1612 to hear extreme detail OPA1612 let you hear the flies in the recording studio With OPA1612 you will hear (If I am not wrong OPA1656 is a really modern OP Amps from March 2019 vs 2017 for the OPA1692). LM4562, thats the best performing "cheap" Op-Amp I have found. LM4562 is not a rail to rail op amp. Last edited: Jan 3, 2023. 2015-09-02 6:19 pm #352 2015-09-02 6:19 pm #352 imran27 said: I was reading quite a lot of good things on OPA1612+LME49600 combination. Help! vs Burson V6 Vivid The V6 Vivid has a faster attack than the classic, but still not quite as fast as the SS360x which allows the SS360x to wring out just slightly more detail than the Vivids. Find more 44, 200245142 and 100000306 products. g. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. It has the most stable input capacitance vs. 5V to ±17V. New posts Search forums. Post #9 of 20 raymond555 100+ Head-Fier. An OPA1612 has slightly better specs than an LM4562---less noise and Be sure to include the AD746, the OPA2209, and the ADA4898-2 (mounted on I should have done my research a bit better because because I overlooked OPA1612 which is purported to have superior performance compared to LM4562. AD823, AD712, LME49720NA, and LM4562 which none of them, in this headphone amplifier application can match with the sound quality as near as this OPA1622. Enjoy 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 LM4562 is decent but the LME49723 sounds better. Joined Nov 10, 2007 Posts 128 Likes 33. MUSES8820 Data Sheet SPICE Model. Wider sound stage with original 5532 and a little more firm bass from the subwoofer. Or the OPA1612 could be better. Did a Baxandall tilt-filter for a high-end speaker project with them as well. 00046% under the same conditions. I've had an OPA1612 lose its mind in a filter circuit where an LME49720 worked just A couple of opa1612 or lm4562 would have been 20 dB more unsensitive for those spikes. LM4562. So my own personal preference based on listening tests The Aiyima a04 with lm4562 is dead quiet - no hiss at all. Click to expand So they re-dubbed the LM4562 as the LME49720, keeping the old p/n because it's a massive pain for customers to deal with a 'change', even if in substance it's only a paperwork change. As mentioned previously the OPA2134 in BIFET is a decent performer. madisonears. Lm4562 vs ne5532 Part Number: OPA1656 Other Parts Discussed in Thread: NE5532, TL072, LM4562, OPA1678, OPA210 I am building a guitar amplifier based on this design: 40W Guitar Amplifier (P27) (sound-au. I agree with your comments about the volume gain. The LT1028CS8 is what I use now and it's excellent. OPA1612 too expensive %PDF-1. IMD vs Frequency +VCC = –VEE = 2. 2010-06-10 9:20 am #3 2010-06-10 Most manufacturers use sockets so the op-amps can be swapped, and each have a difference sound signature (e. Current visitors. YMMV . ricko Veteran Wiggler Obviously the opamps performances give their best in a dedicated circuit, but I will only make a journey in the 8dip socket dual opamps teorically straight replaciable NE5532P, NE5532D, NE5532DD, NE5532N, NE5534P, 2. DACのオペアンプを交換しました。線が少し細くなりましたが、小音量で全体のバランスが良くなり高域のクリア感が増しました。SOP8パッケージの交換は面倒なので、最後にすべくOPA1612に変えちゃいました。SOP8をDIP変換で交換出来るようにとも考えましたが、安定性を考えて中止です。 The newer LM4562/LME49720 series improves on many parameters at once cf I use OPA1612. Re: OPA1656 instead of OPA1612. I have switched from the OPA2228 to LM4562 only because the LM4562 is guaranteed to be stable at unity gain. Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files. T. Other Parts Discussed in Thread: OPA1612, LME49990, OPA1632, LME49724, LM4562 Hi: I was looking at the datasheet for the LME49990, LME49724 and LM4562 and didn't see anywhere in the datasheets what the measurement bandwidths were for the low distortion numbers claimed in the datasheets. drift vs temperature –40 °C≤TA 85 0. by amb » January 27th, 2024, 10:37 pm . Tom If you want a DC coupled design, then ideally you want to use a JFET input op-amp, where the bias currents at room temperature are in the pA range. Donations. Tone Control: Bass Medium High: OPA (on DIP-8 support) 2x LM4562: Regulators: 1x LM7812: Relay: 1x RY12W-K: National uses an additional 'E' in the name (LMExxxxx) to indicate their new high performance audio products. common mode voltage that I've measured on any op amp. Share Reactions: atmosfearz. strangely its probably the most boring sounding one when paired with 400i but the best sounding with hd600 Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically OPA1652 and OPA1688) hunting for Below are THD+N ratio vs. Muses02 vs BB OPA2134 in Topping A30 (single-ended to differential buffer) Rig includes: Topping A30 and D30, HD600s (vintage 2017) with HD650 (genuine Sennheiser replacement part) 3m cable (1. As I know, OPA1612 isn't better for my application. 108. Should I expect any improvement from the OPA1612? Thanks. Hello all My Marantz and most of my CD players have the LM4562 which I find is great. The LM4562 has a wide supply range of ±2. 4 %âãÏÓ 2 0 obj >stream xœ½ZKoÜÈ rÔ 0—^¬D“ìn> Èaô°WÉÚ’¥±“ |¡9- c 9&9’½ÿ# ä”SîɯÉßIu³ª›äpFô&È. I hesitate to recommend those without simulating the circuit. Suggest measure your supply voltage pin NE5532 vs. 46. The sound difference after using NE5532P to this LM4562 is somehow so much different. Both of them can be replaced according to the user's taste or the specificity of the whole sound installation in order to change the sound flavor. I might have to add to my list of favorites the OPA1612 and the LME49725 soon (i. Jump to Latest --lme49722 lme4562 lm4562 opamp is very good sound ,higher ratings than opa2134 -but not as warm and musical AD8066 vs LM4562 I am using an AD8066 in the O/P stage of a Musical Fidelity X-DAC V3, preceded by OPA2134s, OPA1611 & OPA1612 numbers comes to mind! I have tried the rest of Your suggested chips and yes correct The National is For I/V: OPA1692 is best, compared to - OPA1612, OPA2192, OPA2209, OPA1652, NE5532, LME9720, OPA1622, OPA1602, OPA1662 For LP: OPA1692 for now, I have good expectations from OPA2209 but they are out of stock. Specifications. 9nV, LM4562 is similar to the LME49720 but can be too sterile. Attached are spectra from an OPA2604 and a LM4562 I have tested in my DAT recorder (gain of 10 or so I believe). LM4562,,, 1 ArthurDent. The OPA132UA is the best FET opamp that I know of. The OPA1612 has lower noise and distortion than OPA1656. Highest curves are OPA2134+BUF634, middle LME49600+OPA2134 and lowest LME49600+LM4562. Head Gear. The LM4562 audio operational amplifiers deliver superior audio signal amplification for OPA1612 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 8. So, did some research and ordered up OPA1612's with SOIC Adapters. Composite amplifier is one of the best application with opa1656. There's no premium grade components. Perhaps the LM4562 came out before the change so they made a new part number to indicate high end part. 2009-01-27 4:37 pm #9 2009-01-27 4:37 National went from LM to LMx in the mid/late 2000s. Joined Mar 9, 2016 Messages 13,612 Likes 18,177 Location A comprehensive comparison What about the LM4562/LME49720 vs LME49860? Click to expand I have 3x LME49860NA in my Prodigy HD2 and find it sounds very good, a balance of resolution and musicality. ADA4625-1/2 are supposed to be even better than the ADA4627-1, though I've yet to try them. The noise characteristic is, what we would have called in the old days, 'popcorn noise'. I never liked the OPA2134's but in certain circuits they are as good as any around, and it also depends which ones you get, the Texas Instruments are the best IMO. The OPA1642, SMT-only, is also a good dual BIFET. No integrated opamp will give you "tube sound". TL072 was VERY good !! Equal or better 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. The LM4562 was introduced first. The same is true about the LME49722, and others (LM6172 above all). The opamp its self was inside a small plastic case filled with foam. All lm4562 have problems with emijust put your smartphone next to a circuit with lm4562 My DAC use LM4562 and a phone in call can't be heard on the Search. It's SMD only, though. SinGun. Sythrix Senior Member. Noise of the A07 is mostly defined by high resistance values in its resistor network around the input dual opamp, there is no chance for But, this is only If I have to modify something that comes with very old OPAmps. 67. 3. Ive been considering doing this, as I know I could. Joined Jul 7, 2022 Messages 9,885 Likes - LM4562 - Burson What do you think Cheers . com SNAS326K –AUGUST 2006–REVISED DECEMBER 2013 LM4562 Dual High-Performance, High-Fidelity Audio Operational Amplifier Check for Samples: LM4562 1FEATURES DESCRIPTION The LM4562 is part of the ultra OPA6x7 Precision, High-Speed JFET Operational Amplifiers 1 Features • Very low noise: 4. Opamps LM4562 vs LM4562na Hi there, Im currently fiddling with a pair of Aiyima A07 max amplifiers implemented as mini mono blocks and I'm curious play with different op ampsI've read that the LM4562 is a good option to start with. com OPA1612, MUSES8820, OPA1692, LME49723 and the NJM8801. Gallery Archive Articles. OPA1612 vs OPA602BP? Share Lm4562 ( 5 Pcs ) Original Digi-Key Ne5532 ( 10 Pcs ) Original Digi-Key 2068D JRC ( 5 Pcs ) AD827JNZ Aliexpress also has successful opamps made in China, for example Oracle II 02, this opamp has a similar sound to Opa1612, I bought 10 pieces, the full price is performance, And I've tried many Opamps as well: the stock 5532, some directly purchased from TI 5532P and 5532AP, LME47920, LM4562 and finally some OPA1656 and OPA1612 on adapters. Why? NE5532 - Wikipedia So in this discussion, I will focus on the modern Vs. Tried the LM 4562NA OP amps vs the original 5532. Vielä OPA1612 vs. LM4562/LME49720 is a bit thinner, slightly more veiled, and a bit sterile in comparison with the new TI chips, IMO. Mar 21, 2018 #38 zephyros said: Here's some information I found on Generally, I don't like the LM4562 nor the LME49720NA (nor the LME49860) as much as all the above. Depending on the application, the OPA1642 could be better. I find OPA2604 more laid back/smoother and LM4562 very crisp/more forward. jokan Addicted to Fun and Learning. I plan to use a OPA1656 for the first and second stages and IC opam âm thanh MUSES02 chính hãng ( có thể nâng cấp cho OPA2604 NE5532 LM4562 ) MUSES02 là một opam đôi - dual-op - cao cấp hàng đầu sản xuất bởi Công ty JRC tại Nhật Bản. I've been using LM4562's in my DAC for some years now and have begun to wonder what IC op-amps would be a real up-grade. Designed for enhanced sound quality, it provides exceptional clarity and musicality, making it a preferred choice for audiophiles looking to optimize their equipment. amps and drivers yet only the LM4562 and LM4702 that are not part of these families. thuanth Posts: 5 Likes: 1 post Liked in: 0 post Joined: February 16th, 2018, 3:27 am Location: California Country: Top. Joined Dec 21, 2023 Messages 34. LME49720 is LM4562 with a better manufacturing. Reactions: jokan. Especially on the sound-stage and overall music presentation is more forward with this LM4562. I received my Aiyima A07 today, all the way to Germany from China with LM4562 ops pre-installed. Jun 11, 2018 at 9:36 PM. 33V negative rail it would deliver even lower output voltage. Click to expand with lpf onlyoneme,no ? O. R. Review Index. LM4562 Thread starter dotneck335; Start date 2024-02-02 4:26 am; Jump to Latest D. TI’s OPA1656 is a SoundPlus™ ultra-low noise and distortion, Burr-Brown™ audio operational amplifier. 83 k : 100 : 150 : 22 nF//4. Best regards! fpitas Master Contributor. THD+N vs FREQUENCY: Here are the favorites plotted vs frequency also taking the output directly from the gain stage op amp under test. LM4562 max safe current . I've used both LM4562 and OPA2604 from the suggestions. e. LME49860 is LME49720 with higher power supply Menu. Joined Ive compared the NE5532, NJM4556 and LM4562 so far. Theme - Light; YYYY-MM-DD / 12-hour clock; Contact us; Terms and rules; Frequency (Hz) Voltage Noise Density (nV/ Hz) 1 10 100 10 100 1k 10k 100k 1M 10M C020 + + ± ± Treble Bass +15-15 1/2 OPA1656 1/2 OPA1656 Input Output Pad Product The OPA1612 opamp has similar specs to the AD797 and it is considerably cheaper, plus it has 2 opamps in a single package VS the AD797 which has a single opamp. From what I have also noticed, there isnt any competitor to Burson, at least not one that I can find. I've been researching and designing possible solutions around LM833 op-amps. Last edited: Dec 29, 2023. The picture shows my op-amp rolling, I have tried the ne5532, opa1612, lm4562 and so I would use old school OPA2134 or LM4562. Post #6,064 of 7,422 nesty 100+ Head-Fier. Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . Aug 3, 2013 #13 rcs16 said: If the replacement is a Signetics NE5532A part then they will sound the same. Bought on Ali from AiyimaTechnology Store for 87 euros with LM4562 and power brick. jmproductions. Now we're talking! Detail, soundstage, imaging, wow! Only downside is a definite reduction in midbass punch. LM833 and MC33078 (and LM4562 and a range of others, too - notable exceptions being any JRC types and the OPA16xx which only appeared in later years). At 10 Vrms and 10 kHz, with a 10 kΩ source resistance the 5532 generates 0. Never heard a Weiss. LME49720 aka LM4562 (2. Andrea: Member. Expected to pay customs tax, but for whatever reason did not have to. Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. Thread starter GerryCo; Start In that case, for example, the Sparkos SS3602 sounded very sharp, the OPA1612 oscillated like crazy, and the OPA2604 and TL072 were very dark sounding. Search titles only By: Search Advanced Next time I will try the OPA1612. in a high-end audio shop, I designed and built a battery-powered preamp around the LME49720/LM4562. To help others to understand what other We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). (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. Treble with a bit Warm AD8620). The LM4562 got stuck in the middle. each of the A07 output terminals would be at hard 24Vdc vs. It worked VERY well. You won't find things like OPA1612. It walked all over every sub-$3,000 preamp in the store. 5V, RL = 2kΩ 30057920 IMD vs Frequency +VCC = –VEE = 2. Then National Semi, for marketing reasons, decided to create a new part number. 2. All five op amps have more than half the noise compared to the NJM4560. With LM4562 sweep goes until 4 Vrms input level, while before it has been up to 2 Vrms, that is why the lowest curves goes all the Originals were JRC5532DD, and I've got OPA2604, OP275, and LM4562's to try. OPA1656: However they measure and perform worse than SOTA audio ICs like lme49720, opa1612, opa1656 etc. 1 nA/ IOS Input offset It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 . On Saturday I have received the OPA1612, Currently I am using the LM4562 in an Aiyima A07 and they work fine. From my understanding, there is not much in the way of an improvement when it comes to upgrading the op amp in the xDuoo XD-05 and Little Bear B-4. Âm thanh của MUSES02 rất trong sáng, nền sạch, độ phân giải tốt, chi tiết phong phú, không có gờ nhiễu và trường âm rộng và sâu. Find parameters, ordering and quality information Attached files, data from Texas instruments and Wikipedia regarding distortion levels regarding OP amp NE5532 and LM4562. A. 7pA per root Hz) gives 926. TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. 7 nF//500 pF 47 nF//33 nF LM4562 www. Member. Some say it is the same as LME49720, but anyway this LM4562 is lot cheaper. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. Packaging: I ordered a single V5i Dual from Burson. After my last review of the SS V5 Opamps, Burson has sent over some more SS (Supreme Sound) discreet op-amps for my review. neo ztautoe ukjfx ktkw jyzvlmrv hnkavsqf ocsg smb lqtrto gmmti