Opa1612 vs lm4562 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. Treble with a bit Warm . 首先关于lme49710、lme49720、lm4562这3款运放一直有个疑问，究竟这三者之间是什么关系，lme49710是单运放，另外2款是双运放，lm4562是lme49710的双运放版本吗？ 那lme49720又是什么呢，而且lme49720的spice库也没有在ti的官网上找到。 Personally I prefer LM4562, OPA2228 and OPA1612 over OPA1642 because of the input noise that makes it sound less pristine. 1 nA/ IOS Input offset LM4562 Average Input Offset Voltage Drift vs Temperature 0. I've been researching and designing possible solutions around LM833 op-amps. I rolled the T6 Pro with the Oracle 02 op amps in the preamp output stage and the opa1622 in the A07. It occurred to me that a more modern & higher performing part must exist at a lower price - a win-win scenario if ever there was one. It should be of simmilar if not better overall quality except for the fact that it does not A couple of opa1612 or lm4562 would have been 20 dB more unsensitive for those spikes. drift vs temperature –40 °C≤TA 85 0. In that case, for example, the Sparkos SS3602 sounded very sharp, the OPA1612 oscillated like crazy, and the OPA2604 and TL072 were very dark LM4562 3. Perhaps the LM4562 came out before the change so they made a new part number to indicate high end part. B. And all but the 1NA217 have less distortion, some by an order of magnitude; and all are faster than the NE5534. Logged audiophile, but the tangentsoft guy does do real engineering work. I couldn't tell the difference between the I have some experience swapping ne5532 in Aiyima amplifiers to opa 1612 and lm4562, and I think the bass dynamics is slightly better with lm4562, and the soundstage more exact with opa1612. To me, the sound is just too laid back. I have a Muses 8820 and 8920 that came with my sound card, so I'll put them in as well. 1; 2; First Prev 2 of 2 Go to page. Share Reactions: LaughMoreDaily. ti. 9nV, or -118. ADA4625-1/2 are supposed to be even better than the ADA4627-1, though I've yet to try them. オペアンプの違いによる音質比較表を、店主の主観たっぷりに紹介しているので、オペアンプ交換の参考にして欲しい。 The newer LM4562/LME49720 series improves on many parameters at once cf. X-fi Prelude' comparison a few threads down and I basically concluded from that the AD8620 might be considered better than the default LM4562. Home. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. Specifications. Find parameters, ordering and quality information The latest op-amp that I am still using until now is LM4562. LM4562 - decent - as mentioned above quite crisp if a touch metallic sounding* OPA16xx (i. The combination of OPA1656 as U1 and LM4562 as U2 gave the lowest measured noise, but there was a negligible audible difference when the LM4562 was replaced by a NE5532. LME49720 4. I don't care about listening tests or something else, just want to use the technical better one in my amp. Warm Mids (Deep and Full) . May be that is reason why LM4562 is popular with many OEMs. Even if the base designs are similar or one is based on the other (as in the Highlander vs. I ended up not linking that at all. I hear OPA828 is the new version of the OPA627, so I may try that one out. 个人认为MUSES 妖气十足 不及LME49720中正大方 ，活宝看到这些运放肯定说是假货，因为跟他接触过的两三种印刷不同，心目中2604只有他手上那种才是正宗。这个是小日本录制的视频，可能来中国采购 个人觉着LM4562比49720更有层次，密度也 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. The sparkos opamps are very good as well but are IMO sonically warmer than the Sonic Imagery. Check out Samuel Groner's excellent opamp measurements, he tested all of NE5532, 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). You can also try OPA1612 as buffer with OPA2822 for the headphone driver. (Unity gain stable) How to choose between lm4562 vs ne5532. Propose. Avoid LM4562/LME49720 and OPA2134/2604 if you do not want to re-engineering circuitry to make it stable. 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. 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 OPA1612 is bipolar input opamp. vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage. Joined 2009. But that By newer I meantnewer, because OPA1612 is a newer design then let's say NE5532 or even LM4562. Burson V5i-D and Muses02 are very good But balanced sound not heavy bass. The LM4562 is a little faster and is thus more effective at eliminating 1622 peaking (about 0. Further investigation found that the servo itself was just fine, and the problem child was the The LM4562 has higher 2nd harmonic (if that is what you wan´t) but higher 5th too. Reactions: Euphonic_employee, Xulonn, Speedskater and 5 others. Donations. 0005. Looking to buy some opamps for rolling then stumbled on a thread with people saying that the three are the same thing. 魅族mx4pro运放芯片用的是1612，而xplay 3s用2604，不知道魅族能不能比vivo更屌呢？ 貌似老外们觉得2604比较好有助攻的么 OPA1612 与 OPA2604 对比？ The LM4562 is decent but the LME49723 sounds better. If you go on my website below and look at the X-Altra Mini Preamp, you can see an example. OPA2192 being my favorite CMOS opamp and OPA2209 my favorite bipolar alongside OPA1612. OPA2134 and a few others. New posts Search forums. Be sure to include the AD746, the OPA2209, and the According to the TI datasheets OPA1612 has less noise than OPA1656. TI’s LME49720 is a 2-channel, 55-MHz, high-fidelity, high-performance, RRO audio op amp. 2010-06-10 9:20 am #3 2010-06-10 9:20 am #3 OPA1611/1612 is a very good op-amp. 00046% under the same conditions. 9 nV/√Hz at 10 kHz I've read about the 'Sondigo vs. Operational amplifiers are specialised amplifiers that have high input impedance, low output LM4562; AD8512; OPA2209; And for reference, I am testing this with: Foobar2000 -> Schiit Wyrd -> Peachtree Audio X-1 (coax) -> Denon DA-500 -> O2 -> HD650 / Denon AH-D2000 / VSONIC GR07 Classic Also I read somewhere the OPA1612 is somewhat related to the OPA2211 and the 1612 is more the "audio" version of this amp. The completely docile op amps are the OPA2604, the OPA627, the OPA2107, the LM4562/LME49720 and the OPA2134. 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 29、lme49720na(塑封)：美国国半集团继lm4562之后的又一著名高档音频双运放，基础指标几乎和自家的lm4562相同，但听起来和4562又有明显不同。 该运放音色严格来说属中性、全面、现代。 drift vs temperature –40 °C≤TA 85 0. Hi, I'm working on a compact SMD based PCB/build for Doug Self's EQ from LinearAudio#5. LME49720 is LM4562 with a better manufacturing. 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 The LM4562 combines extremely low voltage noise density (2. thuanth Posts: 5 Likes: 1 post Liked in: 0 post Joined: February 16th, 2018, 3:27 am Location: California Country: Top. OPA1656: Of course. I note that the LM833 and LM4562 datasheets contain identical RIAA phono circuits in their application notes. 6pA per root Hz) gives 739. 1K. M. 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. After my last review of the SS V5 Opamps, Burson has sent over some more SS (Supreme Sound) discreet op-amps for my review. Now we're talking! Detail, soundstage, imaging, wow! Only downside is a definite reduction in midbass punch. Compare the datasheets. MUSES8820 Ver. Re: OPA1656 instead of OPA1612. Home ; Categories ; muses8920とlm4562の比較. For gain: OPA209 but only against NE5534 and V6V singles. 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. the LM4562/LME49720 and the OPA2134. FWIW, I'd suggest OPA827 (x2) or OPA1641/42 for TL072 and OPA211/2211A for NE5532. invalidbuffa; Aug 2, 2013; Solid State; 2. A more refined sound all round Other cheap ones on my radar - OPA2134PA, OPA1612, LM4562NA. It's worth noting that the LME49720 and the LM4562 are the same opamp. I'm currently busy throwing as many lm4562, opa1642 and opa1656 as I can in a small headphones amp design. Those are fine. To drive headphones you might want to look at buffering the output with someting like BUF634. com OPA1612, MUSES8820, OPA1692, LME49723 and the NJM8801. You should be able to find single-to-dual DIP8 adapters for mounting 2xAD797 on a DIP8 socket. jokan Addicted to Fun and Learning. 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. 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. 鹿 . Especially on the sound-stage and overall music presentation is more forward with this LM4562. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. . Haven't tried the new OPA164x series, but word is that they sound good. 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. (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. Post #6,064 of 7,422 nesty 100+ Head-Fier. Joined Feb 19, 2019 The LM4562 has a wide supply range of ±2. 5V to ±17V. Parameter:Chipset: TPA3255+NE5532Replaceable operational amplifier chips: RT3609SM, OPA2604, OPA2134, LM4562, JRC5532, OP275GSZ, OPA1612, MUSES01/02/03, etc. The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience 最近オペアンプ交換が楽しくて色々試してみました。個人のメモを兼ねてレビューしてみます。環境は、CD取り込みからハイレゾ化まで手軽にできるCurioSoundを使用してCDから取り込んだデータを96kHz 24bitのflac形式で保存。 "安いのにすごいSHANLING M2sを買いました"で紹介したM2sからラインア National uses an additional 'E' in the name (LMExxxxx) to indicate their new high performance audio products. It is a little bigger than a standard op-amp because of the adapter, so be careful when fitting it. Anyway, this is a very good measurement result. Bauhausler Rational Subjectivist. 1 nA/ IOS Input offset 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. 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 details you never heard before. Forums. These would toast at +/-20V so minor tweaks of the power supply/voltage dropping resistor may be needed. (€20 DAC) vs a Topping E30 II (150€) vs the internal DAC on a Marantz CD-Player. CFT. Click to expand THD+N Ratio vs Measured Level / Inverting 6dB Gain / 100k load / 22. Vielä OPA1612 vs. Audiofool Reviews – 21 Apr 19. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. Some say it is the same as LME49720, but anyway this LM4562 is lot cheaper. 005 vs . I use OPA1612. output power sweeps into 32 Ω load, with low (0 dB) and high (10 dB) gain settings. 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. LM is the best overall, it sounds the most balanced, very natural/smooth/clean, doesnt exaggerate anything but can sound lacking in impact. But for MC phono pre-amps a low noise bipolar input op amp like the OPA1612 would give the best noise performance. Review Index. LM4562 is similar to the LME49720 but can be too sterile. Newk Yuler Active Member. the OPA1612. I also really liked the OPA627 that I had in an audio-gd dac years ago. 7dB I mentioned), but it would limit output capability on ±15V supplies, which this is designed for. Below are THD+N ratio vs. I searched for some graphs but did not find any. At least it lacks the unfavorable 7th which the OPA2604 has. As mentioned previously the OPA2134 in BIFET is a decent performer. 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. Most of the listeners would be perfectly happy with it. 2022-10-29 11:31 pm this is only If I have to modify something that comes with very old OPAmps. 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 The Aiyima a04 with lm4562 is dead quiet - no hiss at all. In a dac. . Never heard a Weiss. 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 Replacing NJM2068 and NJM4580 by AD8620 or LM4562. Here are the measurements of the dual mono and with different op amps (Sonic Imagery 994, OPA1656, LM4562). SparkOS Discrete Op-amps | Audiofool Reviews. It doesn't say or show in the datasheets. 7pA per root Hz) gives 926. NE5532AN. High Quality Bipolar-Input Dual Audio Operational Amplifier for High-end Audio Equipment. You have to try it yourself to hear the difference, because the measurement advantage is very small, so it should be non-audible , but it is not. the OPA209 family. Find parameters, ordering and quality information So in this discussion, I will focus on the modern Vs. SparkOS Discrete Op-amps SS3601 and SS3602 with comparisons to Ne5532/5534, Muses02, Burson v6 Classic, and Burson v6 Vivid op amps. Go. Joined Dec 21, 2023 Messages 34. Opa1612 and LM4562/LME49720 are both good. It seems like LM4562 in SOIC-8 package is rather unobtainable at the moment so I'm thinking about suitable alternatives. 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. These caps insure that I OPA1611, OPA1612 www. Joined 2018. Opa1612 is generally slightly light weighted but very balanced otherwise. But just the bass sounds a bit far away in comparison. I'd go for an OPA1612 as an upgrade in virtually every circumstance. A comprehensive comparison between OPA1612 and OPA2156 (and other opamps) could be read here: I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM 4562 in both Aiyima a07 and the tpa3251-based Aiyima a04. Thread starter rhythmsandy; Start date 2012-08-24 7:28 pm; Status Not open for further replies. Saw on ti site a recommendation for the recent 電子部品,通販,販売,半導体,ic,led,マイコン,電子工作2回路入バイポーラー入力高音質hifiオペアンプ muses02d秋月電子通商 電子部品通信販売 VIN(DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous TA Operating temperature –55 125 °C TJ Junction temperature –65 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. noise, bandwidth, THD and output current. Overall, don't recommend opamp rolling. MUSES8820 Data Sheet SPICE Model. by amb » January 27th, 2024, 10:37 pm . Jump to Latest J. The data sheet is very handy for audio designers working with 600Ω loads, but also presents apparently conflicting specs, and lacks 2KΩ load data. Last edited: 2009-10-29 11:14 am. Last edited: Dec 29, 2023. Muses02 vs. Joined Nov 10, 2007 Posts 128 Likes 33. I cannot confirm that the OPA2604 has predominantly even harmonics (at least not in the sense as a single ended class a circuit would have). Burson V5i-D better than OPA1612 stock Xduoo XD-5 . These days the likes of OPA1642 / OPA1612 are Some will point out the OPA1612 (which is even better) or the OPA1656. Member. Choosing between the LM4562 and NE5532 depends on your specific application requirements and priorities. Members. Last edited: Jan 3, 2023. ※在庫数欄の表記が『おひとり様 点まで』となっている商品は、現時点で、おひとり様（1団体様）あたりのご提供数量を表記の数量へ制限させていただいている商品です。 Looking at the web page for LM4562 this morning I noticed that TI is marketing a device called OPA2891 as an alternative device. 022uf film foil were only caps in audio path she picked the opa1612 from ne5532 the opa1656 so I would use old school OPA2134 or LM4562. The OPA1612 does not seem to have the process contamination of the LM497X0 that produces rocky-sounding noise. The sound difference after using NE5532P to this LM4562 is somehow so much different. J. I have a Technics MASH cd player with the SMDs type of opamps needed. 7nV and 1. and the ADA4898-2 (mounted on SOIC-to-DIP adapters) in your rotation. At >$6 each it's not cheap, but it's a lot cheaper than the "discrete" opamps out there and at least it has specs, measurements, no obvious failings etc I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM 4562 in both Aiyima a07 and the tpa3251-based Aiyima a04. Long-winded question for anybody is what’s the diff between these The OPA1612 is more robust against EMI than the LME49720. Both (I believe have Fet-inputs) There’s also 2189 CMOS audio op amp has impressive specs of an impressive was designed for MUX friendly DACs and multichannel dacs! 8. Reactions: According to the TI datasheets OPA1612 has less noise than OPA1656. No integrated opamp will give you "tube sound". On some of the newr parts TI has released measurements of the EMI immunity, e. And opa1642 has a bit better soundstage I don't know why. Mark Tillotson. Also comparisons of the OPA627 and OPA637 would be good. The second time I did test with opa1656 and opa1612. Close to zero DC mv at its 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 The performance of the stock op-amp LM4562 is best characterized as clean, lean, fast, but relatively laid back. I love details clarity, soundstage - listen to rock classical and vocals. IMD vs Frequency +VCC = –VEE = 2. Dec 29, 2023 #85 Thank you The new LM4562 also has very low input bias currents, and you can safely direct couple low value pots (10k or less) into its input stage. And of course the OPA1612. That said, a few people consder the OPA637 an 'upgrade' from the AD8620. Gallery Archive Articles. It is the best for audio preamplifiers, active filters, and line amplifiers Part Number: OPA2210 Other Parts Discussed in Thread: LM4562, , INA1620, OPA1622, OPA1656, OPA828, OPA1642, OPA1678, OPA1612, BUF634A Pardon if any of the following has been covered. Post #7,039 of 7,421 fabio19 It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 . This combination will sound slightly more clinical than the OPA2228/OPA2822 combination. LM4562/LME49720 is a bit thinner, slightly more veiled, and a bit sterile in comparison with the new TI chips, IMO. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. 0015%(@1W)Signal-to-noise ratio:≥≥116 dBFreque 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 not special LM4562 is better than OPA2132. I've had an OPA1612 lose its mind in a filter circuit where an LME49720 worked just By newer I meantnewer, because OPA1612 is a newer design then let's say NE5532 or even LM4562. One guess that one choice that comes to mind is OPA1612. Thanks in advance. tnt-audio. The "A" grade is selected (tested) for a guaranteed noise level, thus slightly more expensive. saratoga. 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, Buy DLHiFi SX52B Fully Discrete opamp Replace OPA1612 LM4562 NE5532 AD827 For HiFi DAC Headphone Amplifer Phono Crossover Preamp at Aliexpress for . Which is fine. LME49860 is LME49720 with higher power supply Menu. 5 KB · Views: 8,292 Last edited: 2009 OPA1612, OPA2211, LME49720HA, OPA2111, AD746 (class A), AD8620, AD8066, OPA2228, AD8059 OK, I'm going to send you an lme49720, but I also found some more that I forgot I had. Last Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . I'm liking the sound more than the standard LM4562 and JRC 2114D’s , even though these are pretty impressive themselves ( if you look at 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. Joe Smith Major Contributor. 2 μV/°C OPA1612 VOS over temperature, Typical 1 μV/°C, Max 4 μV/°C They are 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. LM4562's. This question is triggered by a repair I recently did where the originals, while still available, were stupid expensive. I got by far the best sound with the Muses 02. Note the OPA2211 goes for I also think that op-amp rolling is rather fun, even if the only op I found to be sounding clearly better than ne5532, was the lm4562 ( the others I tried: opa1642 opa2134 and opa1612 ) Last edited: Oct 2, 2021 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. Central Scrutinizer. I am also sending you an OPA1612 SOIC mounted to a PDIP adapter. We have released the MUSES8820, mass production model of MUSES Series, offering finest sound to audio fans more widely. strangely its probably the most boring sounding one when paired with 400i but the best sounding with hd600 by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES03 0:42~ 1:42~ 2:43~ They are "better' ones you can try - LM4562 is always a good candidate just check the supply voltage fist. 540B1536-57EA-4D11-A9B2 i will second the notion of the opa1612 being audibly superior to the ne5532 its a huge difference my daughter who patiently sat through almost 2 hours o bling listening tests on 3 upgraded cd players a nad 546bee with foil film coupling caps and 50 volt 100uf muse bipolar and wima fkp3 . Lexus RX comparison), doesn't make one necessarily 'superior' and the other 'inferior' Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, low-noise 36-V JFET 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 LM4562 (same die as the LME49720) was designed to produce a low open loop distortion - likely better than a 5532. OPA891 is a single, while 2891 is dual op-amp. But that does not say anything about the SQ. There is a whole family of LME parts of op. png. Joined Mar 5, 2019 Messages 155 Likes 253. Musical Fidelity A5 integrated 真的不知道这次又会出什么幺蛾子，讨论2604就被要求拍正反面照片，我就偏不发。然后推荐lm4562又被说良品率不高，哪年的好他们手上才是正货，反正这些玩意一出一出的套路多得很，就差所有人的运放必须经过这些混子签字认证了，今天改推荐opa1642了，参数，价格，音质无可挑剔，看看又玩哪样 At 10 Vrms and 10 kHz, with a 10 kΩ source resistance the 5532 generates 0. Reactions: jokan. 5V, RL = 2kΩ 30057920 IMD vs Frequency +VCC = –VEE = 2. The OPA1612 has lower noise and distortion than OPA1656. If you want discrete, then Sonic Imagery 994 or the Weiss op amps. The OPA1642, SMT-only, is also a TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. - LM4562 - Burson What do you think Cheers . 67. diyAudio Community diyAudio Store. warm, revealing, etc. Suggest measure your supply voltage pin 4 or 8. 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. 6 ) but the LM4562 gives only 0. Some have voltage requirements that make them only compatible in certain designs, 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. OPA227 has 2 diodes in series , anti-parrallel = 1,2 V pp, maybe PNP like OPA1662 ( has single anti-parrallel diodes) . 25. The higher current drive of the OPA2822 would be beneficial. I have switched from the OPA2228 to LM4562 only because the LM4562 is guaranteed to be stable at Ive compared the NE5532, NJM4556 and LM4562 so far. 前回、NJM8830GM1の表面実装を行いDIP8化したので音質チェックしてみる。以前購入したオペアンプと聴き比べてみる。ついでに最近購入したOPA1612やOPA627AUも音質比較してみる。オペアンプは自作Chu MoyアンプやFX-AUDIO DAC-X3Jに接続。イヤホンにはソニー XBA-N3を使って試聴してみた。 NJM8830GM1同じ The bottom line is that different markets need different specs and companies optimize products to match the market. Load was 1k but I'm planning on changing that to something easier like 2k and retesting NE5532 just for - LM4562 - OPA1611/OPA1612 (single and dual) Reply reply spicy_hallucination • Keep in mind that higher openloop gain . Share Reactions: atmosfearz. Jul 29, 2016. 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. Joined Jul 7, 2022 Messages 9,885 Likes 14,404 So, did some research and ordered up OPA1612's with SOIC Adapters. e. The hiss is slightly higher from Aiyima a07, but still very low. OPA1611, OPA1612 www. Click to expand Had another go at the op amps today as I have some time on my hands. Smooth and natural. Although, I have to think that all of our hard work achieving ultra low noise in phono preamps goes out the window as We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Jan 11, 2021 at 2:01 PM. (LM4562, OIPA 2134) and many more (LM741, NE5532/5534, Unless you consider the OPA1612, LT1028, LT1115, 1N A217, or the THAT 1580---which are ALL quieter in a phono stage. It can be replaced but you'll get diferent sound character. Thread starter Roushon; Start date 2014-02-04 8:21 am; Prev. OPA1656 sounded worst, Muses 8920 sounded best. Last edited: May 23, 2018. Jump to Latest --lme49722 lme4562 lm4562 opamp is very good sound ,higher ratings than opa2134 -but not as warm and musical (recommend 2134 for driving amps) high current drive,enough Of the op amps in my collection the massive misbehavers are the OPA1656, the LME49990 and the OPA1612. 基本的に今使っているlm4562の評価点を1. I want to change LM4562. Joined 2022. and the soundstage more exact with opa1612. LM4562, and NE5532, and OPA2134 sounded the best. Pin can be left floating or connected to any voltage between (V–) and (V+). Joined 2006. To ensure that the most challenging loads are driven without compromise, the LM4562 has a high slew rate of ±20V/µs and an output current capability of ±26mA. The LM's, like other op-amps that I have used have 4700uf caps at each power pin. 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 I've seen LM4562's exhibit ultra low frequency popcorn noise myself. 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 The LM4562 datasheet indicates it has at least 12dB greater open loop gain than LM833 at all audio frequencies. 7nV/√Hz) with vanishingly low THD+N (0. RayDunzl Grand Contributor. Enjoy LM4562 是由德州仪器公司（Texas Instruments，简称TI）设计并生产的运放器芯片。作为一家世界领先的半导体厂商，TI 在全球拥有多个生产基地，并与许多代工厂合作生产半导体产品。 Aiyima a04 with LM4562 is more dynamic, goes deeper in the bass and sound clearer. It AD8066 vs LM4562 I am using an AD8066 in the O/P stage of a Musical Fidelity X-DAC V3, preceded by OPA2134s, instead of the original OPA1611 & OPA1612 numbers comes to mind! I have tried the rest of Your suggested chips and yes correct The National is very good, but sort of a bit Japanese? OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. OPA1612 is one the most low-noise opamps ever built, so totally recommended for unity-gain stages (LPF or output stage of a DAC, but also I/V stage too). Did a Baxandall tilt-filter for a high-end speaker project with them as vs Burson V6 Vivid. Tone Control: Bass Medium High: OPA (on DIP-8 support) 2x LM4562: Regulators: 1x LM7812: Relay: 1x RY12W-K: fostex hp-a3 などかなり多くの種類のヘッドホンアンプに使われております。 値段もかなりお手頃です。 音質は 寒色系 でくっきりとした音質です。 低域もかなり引き締まっている淡白な印象 です。 シンプルでまとまりも良く解像度も高めでですが、人によっては面白みにかける音に感じて 帖子标题："LME49720 vs LM4562 - A/B Test Results for DAC Output Stage" 当然，目前也有很多新型高性能运放器面世，例如TI的LM4562和LME49720、Analog Devices的AD797和OPA1612等，这些新型运放器在音频性能和适用范围等方面更为出色，因此也被越来越多的音响产 • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. 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. Maratnz likes to drive 5532s with the full swing of +/-22V which is too much for most of the stock replacements. I hesitate to recommend those without simulating the circuit. Dec 27, 2019 #7 restorer-john said: It's the equivalent of this: AIYIMA's latest TPA3255 power amplifier has PFFB function and is equipped with 48v5a GAN power supply. NE5532 (5nV and 0. Find more 44, 200245142 and 100000306 products. try modding with better FET input opamp, like OPA2107 or OPA2111 . 8dB vs the 1. Help! Anyone know whether the LM4562-LME49710-LME49860 series are PNP input or NPN . 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. 4dBu EIN. NE5532 vs. I can't really hear difference this time. What's new. Most manufacturers use sockets so the op-amps can be swapped, and each have a difference sound signature (e. LME49720 aka LM4562 (2. Opa1656 has good phase LM4562 / LME49720 would be another, more modern option (less voltage noise, even better load driving). I designed and built a battery-powered preamp around the LME49720/LM4562. The LME49723, Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 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。 The LM4562 has slightly worse noise and distortion measurements than the OPA1612, but the difference is so small that it probably does not change the total SINAD of the complete amplifier for buffers that have a simple single ended circuit (like the EVAL buffer, the VTV, Nord, Apollon, Audiophonics buffers and many others). Jun 11, 2018 at 9:36 PM. The LT1028CS8 is what I use now and it's excellent. My perfect sound would be the 1612's with the bass of the 2132's. OPA1612 too expensive 比較したのは高音質のもの限定で厳選した電圧帰還icのlme49990、opa627、muses8920、opa1612（opa211）等ですが、これらよりも圧倒的に良いです。音はths4631の印象と近いのですがths4631側の安定性の問題（発振していると音質が劣化する）で同じ条件で直接比較でき 高音質電源改善アクセサリーを中心に、音響を中心に電気で世の中に貢献しています。 部件号：OPA1612 主题中讨论的其他部件： OPA2134， LM4562. In terms of noise performance in the real world the OPA1612 beats the LME49720. The LM4562 is unity gain stable. 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. You should give them a try, especially if you replace the output buffer. 4" plug). 108. Obviously, the top end will get LM4562, LME49720 and LME49860 are basically the same opamp. Should I expect any improvement from the OPA1612? Thanks. This will kind of be a comparison of the OPA1612 to the Burson V5i. 00003%) to easily satisfy the most demanding audio applications. 7 nF//500 pF 47 nF//33 nF LM4562 www. Will be trying these in gain stage: OPA1611, ADA4610-1, OPA189 lme49713 vs opa627 vs AD815 vs opa2134 vs opa1612 vs opa2836. 0014% THD (see Figure 4. Extensive listening test showed me that the best sounding result was with the lm4562. (If I am not wrong OPA1656 is a really modern OP Amps from March 2019 vs 2017 for the OPA1692). Replies 20 Views 16K. All five op amps have more than half the noise compared to the NJM4560. SoundOfSound Super Member. LME49720 Vs LM4562. Attachments. I ran a double blind listening test of dual opamps a couple years ago and the grandfatherly old LF412 was shockingly highly rated. You can use a combination as well. Since it's so inexpensive, give it a shot. OPA1612) - quite popular in higher end consumer devices - largely transparent - don't have much experience with them but they are often recommended for the output from DACs due to their noise performance, etc. Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files. NE5532, e. Reactions: Schlippwhip68. you have to decide which things are more subjective vs - LM4562 seems to have a bit better SNR than NE5532 when used in LPF AD8672 and OPA1612 are also very good opamps for use in LPF. F. The LM4562 is electrically identical to the LME49720 but cheaper ($3) and comes in a DIY friendly DIP8 package. At a price. Sparkos vs muses02 vs some Bursons (v5i, vivid, etc). The best specification dual op amp you can buy. OPA627AU. Joined Mar 9, 2016 Messages 13,615 Likes 18,187 Location Riverview FL. Yes it destroyed many many extreme expensive commercial 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. 0nV, or -120. How much that affects the signal integrity I don't know. Samuel Groner Originals were JRC5532DD, and I've got OPA2604, OP275, and LM4562's to try. 46. Aug 3, 2013 #13 rcs16 said: If the replacement is a Signetics NE5532A part then they will sound the same. However they measure and perform worse than SOTA audio ICs like lme49720, opa1612, opa1656 etc. 000. Theme - Light; YYYY-MM-DD 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 like the OPA1642 due to its MUCH reduced bandwidth compared to the 1656 (11MHz vs, 55 MHz)---thus much less chance of oscillation in vintage circuits. opa1612 与 . Probably the first op-amp you can't beat using external front end transistors in a mic amp. The circuit with the values shown in the linked article (but without the High and Low resistors and without the 1K input resistor): 比較したのは高音質のもの限定で厳選した電圧帰還icのlme49990、opa627、muses8920、opa1612（opa211）等ですが、これらよりも圧倒的に良いです。音はths4631の印象と近いのですがths4631側の安定性の The LM4562 was the first op amp to unseat the NE5532 as Doug Self’s overall benchmark. I still want to try (in the DAC I mentioned) the THS4051 and the OPA1611. The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. LM4562 and LME49720 are the exact same part just different model stamped (stated by an ex-employee) The LME49860 is just a 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. ). Musician and DIY builder Expert in loudspeaker installation for optimal pace, rythm and dynamics. JovanEps. Will report back once I make any conclusions. The OPA132UA is the best FET opamp that I know of. Having LM4562 in both amplifiers and they start to sound the same. 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. 83 k : 100 : 150 : 22 nF//4. 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. amps and drivers yet only the LM4562 and LM4702 that are not part of these families. thd are about 3db difference in measurements in sinad 123db vs 120 and frequency response ruler flat and thd is . headphones. Some vendors market them as the same as well. Reply reply brobrobroccoli Here’s a great article comparing opa2156 CMO vs opa1612. g. Amusingly it manifested as unexpectedly wild voltage swings at the output of a DC servo. C. The opamp its self was inside a small plastic case filled with foam. 当我们使用opa1612将差异输入转换 为单端输出时， 输出会失真，请帮助检查原因。 下图是“Sch”，失真的波形附加了音频。 此外，当我们使用opa2134或lm4562来替换opa1612时，失真 消失了。 Hello all My Marantz and most of my CD players have the LM4562 which I find is great. It's best use as an alternative to opa1612 when noise is not a big concern. brjoon1021 Member. LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. The picture shows my op-amp rolling, I have tried the ne5532, opa1612, lm4562 and opa1642. OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. Click to expand with lpf onlyoneme,no ? O. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. I got The OPA1612 is the current audio bee's-knees. OPA2604, 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. Noise is almost same as with LM4562 and there are no problems with distortion. An OPA1612 has slightly better specs than an LM4562---less noise and Buy and try several. If you are using a swithed type volume control, then you CAN direct couple into the NE5532 - no problem. The “width” of the sound stage seems fixed and artificially (too) wide. Heard it all here with different LS and poweramps. A few suppliers sell it as one part number, but not the other. #1 Choose the LM4562 (LM4562 vs NE5532): High-End Audio Quality: If your application demands the highest audio quality, low distortion, and minimal noise interference, the LM4562 is a better choice. Packaging: I ordered a single V5i Dual from Burson. Best regards! fpitas Master Contributor. Distortion:0. 98: Posted on November 12, 2018 at 22:44:48: bobwire Audiophile Posts: 354 Joined: March 7, 2002. Highest curves are OPA2134+BUF634, middle LME49600+OPA2134 and lowest LME49600+LM4562. It walked all over every sub-$3,000 preamp in the store. raoultrifan said: OPA2211A/OPA1612 also sound a bit better than LM4562, IMO. Joined Jan 4, 2019 Messages 1,307 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. R. New posts Latest activity. I conclude that I should obtain an LM4562 and Two LM4562 operational amplifiers mounted on DIP-8 support (removable). rrrremus. 1 k : 3. 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.
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