Opa2134 vs lm4562 The 2134 has more noise Oct 17, 2014 · G'day all, all points check out ok. Aug 17, 2010 · But I have been reading on another DIY forum of improved sonics, less noise, and improved stereo imaging by replacing the 4558,, it was actually suggested on there to use a Burr Brown OPA2134,, but I have some LM4562's and the pinouts and specs are similar to each other. It's all surface mount and I haven't looked at the circuit. Sep 25, 2009 · The opamps that are currently inside are 4558DA and I was told that a good replacement would be the uPC4570c. Account Closed. 39 and requires about a third less power than most of its competitors. LM4562 is another level altogether. I know I don't need to. BUT, the LM4562 is also much less expensive. May 19, 2017 · Personally I loathe the sound of the LM4562 but I haven't really given it a full chance, tailored to its characteristics. OPA2134 is more stable, as it is not too fast for Audio. Оценка качества звучания на LM4562, NE5532, LME49720, LME49860, LM6172, LM4562, OPA2134, OPA2132. As a result of this, I replaced the generic 45xx device in my PCs Soundblaster X-FI Extreme Music with an OPA2134. Narrow Soundstage NJM2068: Weak bass . Dec 6, 2018 · I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. 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. dreamth. 1uF film caps on their outputs which doesn't roll off the bass inside the audio spectrum). Mar 31, 2008 · Wow! The LM4562 sounded nice! Comparing to the OPA2134 and AD825, the LM4562 is a lot closer to the OPA627. Member. But it seems that's not the case. 3nV/rtHz @ 1kHz). The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. Feb 21, 2018 · Below are THD+N ratio vs. Mar 31, 2008 · There must be something wrong there. 3" apart of 4 pins each 0. Jan 4, 2009 · The LME49860 is great, something between the thickness of the LM4562 and the cold neutrality of the LME49720. I found the 2134 more veiled and somewhat "phasey" on the highs, while the 2132 sounds a bit more open and natural. Besides a very simple simulation shows his invention very unstable . LM4562 worked great and DC offset was 3 mV 😎 OPA2134 oscillated. Purchased at Amazon. I never liked the OPA2134. I've received the chips. W. OPA2604 is one of the few op-amps having +24 -24 max supply voltage. GMT+8, 2025-5-18 12:04, Processed in 0. When the top cover was removed, the OPA2134 version was unaffected and the LM4562 version start to trigger at 100Hz multiples in the same way I have already shown. With that said, it sounds like there shouldn't be a problem. 在音频处理电路中，应该着重注意带宽，压摆率能否满足要求，然后thd+n，噪声，越小越好，另外还要主要负载驱动能力等。ti的opa2604，opa2134，lm4562，lme49720，都是非常优秀的音频运放，您可以看一下相关资料。 Apr 17, 2022 · I think audio grade OPamps, in the right application, are very good. To end, I'll say that the LM4562 is a great op-amp but less "universal" that the OPA2134 or NE5532. There is sufficient buz about the LM4562 to at least check the possibility out. It needs to be mounted on an adapter to be used here. OPA1602 — звучание чистые высокие, воздушная середина, расширенная стерео-база, сцена ближе п… Dec 19, 2021 · I've tried various Op amps from the 5532, LM4562, and OPA2134 I like the resolution of the LM4562, however, this op amp turns my circuits into a radio! I get bleeps and bloops from god knows what, probably WIFI and nearby computers, and whatever electronics my neighbors are running. Sep 26, 2024 · Questions regarding measured improvements in SINAD of the Aiyima A07, stock opamps vs LM4562 & OPA2134 (w/good DC supply) If the SINAD was ~83 w/ ne5534, was ~86 w/ LM4562, and was ~88 w/ OPA2134, how shall we (officially) describe these differences and shouldn't there be a difference in quality based upon the data? Respectfully,-the new guy Laterly I have used OPA2134's exclusively with good results, however in very recent times my P06 has sounded (to me), a little 'boring'. However me being me, I want to optimize the most out of the 222ESA and the OPA2134. 180244 second(s), 17 queries . Nov 25, 2015 · 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 an upgrade from the LM4562? This probably isn’t the answer you want, but I’m going to present it to you anyway. As an example, I modded an early Yamaha CD-3 (1985) player with upgrades to the output stage caps and LM4562 op amps and it's pretty close sonically to a British made CDP (not a Chinese with a British sounding name) priced at over $1k from a couple of years ago. I really like the LM4562 as well as it is very low noise (in my circuits), but I still find the OPA2134 to be more pleasant and 'musical' sounding to my ears. His input referred spot noise with the input shorted was about 4x lower. P. power, with @90kHz Other Parts Discussed in Thread: LM4562, LME49720, MC33078, LME49860, NE5532, OPA1642, OPA2134, OPA1612, OPA2604 I was ordered about 400pcs of these chips in SO8 package from Farnell and from Digikey within some years period. com/v/xPj5IKtZ/file. Jun 1, 2008 · 実際に測定してみると、MJ回路やopa2134、lm4562と比べても全然違います。 もっともアンプの性能というは回路で8割方決まりますから、方式の異なるアンプを比べても意味はありません。 6 days ago · The famous NE5532 and OPA2134 are also very good, but my ears prefer it, specially regarding channel separation. And it is a JFET opamp, which is always preferred by myself in the positions where slightly higher voltage noise of the opamp is negligible, like here. And now wanting to try the LMEs. Forum member KSTR gave me the hint to use a groundplane instead of star ground(s) for signal and power, I tried to develop my own layout. 回复 7# mxwmke1 赞同您的观点，如电压放大电路外围的阻容元件不同，参数不同，可能就会大不一样。 的确在仿莱曼上，用这个运放听感比其他的好，没有OPA2134、AD827高频的毛剌，也没有OP275、2604的暖、糊。 Apr 1, 2012 · LM4562 is similar to the LME49720 but can be too sterile. Overall very nice. О выборе лучших наушников, инструкция по управлению и эксплуатации Зишан. Oct 8, 2001 · the opa2134 are actually cheap and maybe give some sonic differences, but I have read that even high-end brands use the ne5532 I am, gonna switch the opamps in my CD player soon with opa2134 (are reaaaaal low budget types) but I would like more to change the cap's to high-end types, their influence non-lineairuty is understandeble and evident, while the opamps only make a difference below Apr 22, 2014 · For the P06, I think the OPA2134, NE5532, LM4562 and LM833 are probably best. May 7, 2020 · lm4562 、 lme49720 ：三頻非常平衡，高頻中規中矩，中頻和低頻都不錯，聲場不錯，但久聽感覺高頻缺乏感染力，總體還是不錯。 推薦度： ★★★☆ LME49860 ：三頻非常平衡，高頻通透，中頻和低頻中規中矩，聲場不錯，總體還是比較耐聽，感覺比 LM4562 、 LME49720 Apr 21, 2008 · 【追試】lm4562 vs lm6172. On top of this I would place the decompensated op-amps, when you fine tune their feedback and/or custom compensation loops, they outperform even the AD797BRZ pair. Apr 15, 2016 · Dual circuit op amps, OPA2134, LM4562, LME49720 etc: For single op amps the supply pins are 4 for - and 7 for + seen here, the little crater on the op amp is near pin 1 . We would like to show you a description here but the site won’t allow us. 67 at Mouser) is a drop in replacement for the NE5532. Posted by KanedaK (A) on December 22, 2016 at 16:38:35 . A Jan 7, 2021 · After reading, changed OpAmp to LM4562 and bought 48V SMPS from Aiyima - thanks to Youtube didn't burn this one and was able to connect & adjust to 44V. Correct me if I'm wrong. Wide soundstage OPA2134: Strong bass . Jul 13, 2019 · Not familiar with JRC6503, couldn't find datasheets to see if the LM4562 is a good sub. How to choose between lm4562 vs ne5532. Dec 6, 2007 · For the line stages, drop in your favorite unity gain stable chip. opa2134. WhiteRhino. It depends both on the application and on the personal preference of the listener. I can't trust a guy claiming unmeasurable -180db thd for his " famous" op amp. Sep 17, 2023 · 使っていますが、この製品にもバーブラウンの opa2134 が標準. Attached the schematic. FET fans can go for the OPA2134. All I have done is an A/B with my favourite op amp, the LM6172, and it didn't come off that well, though you could certainly tell the hard work that had gone into it. Joined 2001. To me, the 4562 should be the touchiest, with its 50 mHz GBP. In all cases, I have tested at least two samples of each op-amp type, to prevent random results. 1 9/19 2016-07-13 ACAV LM4562, Rl=2k or 600, Rs=0-150,00-140,00-130,00-120,00-110,00-100,00-90,00 0 5 10 15 20 Freq [kHz] T H D [d B] 3Vrms, Rl=2k 3Vrms, Rl=600 LM4562, Rl=2k or 600, Rs=0-150 Apr 14, 2021 · Highs were a bit tapered off vs the LM4562, but not at all a major trade off. :thumb: I'm not an opamp expert, but it looks like LM4562 is the newest opamp out there, correct me if I'm wrong. Last edited: Dec 29, 2023 May 24, 2020 · The light speed does have a higher clipping threshold than many overdrive pedals. Versus LM4562 maybe smoother, more balanced FR, less extreme highs and air, but highs nicely Nov 26, 2017 · LM4562, LME49710, LME49720 Start-up Behavior - Pro Audio Design Forum As mentioned previously the OPA2134 in BIFET is a decent performer. As a hobbiest, its easy to over spend on a device, but as a designer, or one selling a audio product, one has to wonder if the cost of the opamp is so important? The LM4562 is a superb dual op amp with very low noise but I prefer the OPA2134 for its sweet/musical sound. The advice was: . Except opa1656 rest of opamps are available on rsdelivers. But it was different in some ways I could not immediately describe. . Treble Fully warm and back. 8 mV 0. Oct 17, 2014 · G'day all, today I swapped out the OPA2134's in my DIY P06 and replaced them with LM4562's. The LM4562 is quieter with low-Z sources, but the LT1469 is faster and draws less current. Some have claimed they sound the same, but that hasn't been my experience. +Gain Bandwidth. OPA2134 seems inoffensive and defined enough but it's got this flat, slightly recessed in the midrange presentation - not quite what I'd call "dull" but not bright, just a bit "hifi", it sounds like an entry-level Japanese solid-state amplifier, and there's not much openess Jan 7, 2021 · So considering NE5532, LM4562 and OPA2134, OPA2134 gives best measured results in AIYIMA A07. Quiet enough, I can't hear the difference versus 33078. Oct 8, 2017 · Lower values can be used if the opamps can drive low impedances with minimal distortion (e. Jan 7, 2021 · I also tried the opa2134 pure line and mixed but didn't find it that interesting compared, in fact a little dull, veiled, flat by comparison to the Oracle 02/opa1622 combo which made even the DAC usb on the T6 Pro sound almost identical to the ESS9018 Hidizs S3 Pro dac which so in my opinion giving really good value for money here so kudos to LM4562 with Rl=2k or 600 vs frequency (Datasheet) LM4562 with Rl=2k or 600 vs level (Datasheet) Audio Opamps, fact, myths and THD measurement resultsRev. Thread starter 439598; Start date Dec 15, 2017; Prev. It of course is well superseded by the LM4562. Double-blind AB we also preferred the OPA2134 at the listening position, especially with the EQ in heavy use. Equipment Forums. I've used both LM4562 and OPA2604 from the suggestions. ). (The measurements are of two halves of the same DAC chip, one half with NE5532 and the other half with OPA2134. Keep in mind, the surrounding circuitry is designed for the original opamp Jan 28, 2018 · I had the chance to gather up a selection of opamps from my parts bin, including BB OPA2604, OPA637, AD823, LME49860, JR4556, Muses8820 and 8920, and compare them against each other along with a Burson V6 Classic (thanks to them for sending me an evaluation). So, it may be more sensitive to op amp selection than other circuits since it’s operating closer to the power rails to create clipping. NE5532, OPA2134, LM4562, etc. Jan 27, 2021 · The LM4562 dominates above NE5532 and OPA2134 at higher output voltages and gain 11x. The old NE5532 is showing it's age now. The sound is much better but there's still something a bit "hi-fi" and "grey" in the presentation. Very forward Mids . Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. Odd. May 19, 2017 · The thing about low noise MM phono amps is there is very quickly a point reached where lower amplifier noise adds no benefit. opa627aは1回路入りしかありません。これを2回路入りのne5532, opa2604, opa2134, njm2114, rc4558などと交換するにはこのように変換基板を使います。 裏表にOPA627Aが乗っておりサイズが小さいので8PIN DIPのスペースにそのまま入ります。 Feb 4, 2014 · OPA2132 and OPA2228 are really good sounding op-amps. ) We would like to show you a description here but the site won’t allow us. Mar 25, 2022 · Conclusion of OPA2134 VS NE5532 The OPA2134 is a Fet Input op-amp, while the NE5532 is a Bipolar Input op-amp. output voltage at 10kHz, LM4562 dominates again. Jan 24, 2017 · OPA2132/OPA2134 OPA2604 LM4562 OPA2107 What's the device that you want to change the opamps in? keithsnaim Gone Fishing. I guess I am measuring the CS4392 chip more than the op-amps. 1%, 10V step). Forums. Here is the distortions vs output of the LM4562, even taking account of the noise floor it goes quite high at low level output; Bye Gaetan. The DAC original changeable OP amp is the OPA2604 which I had rolled with OPA2134 then OPA2107. Jan 7, 2023 · 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, LF353N, OP275, TL052CP, TL072, JRC2068D, JRC2068DD, JRC2114D, JRC2114DD, JRC4556AD, JRC4558D, JRC5532D, JRC5532DD, LM4562, LME49860, LM833N, LME49720, OPA2132, OPA2134, OPA2227PA JRC4560 has more drive current than 4558, Peavey uses a lot of them. I don't think I'll be jumping opamps soon. OPA2134 and OPA2604 are very close in data. Oct 16, 2008 · Hi all, I just replaced the TL072CN from my preamp with the "better" opa2134. It offers an extremely low total harmonic distortion (THD) and noise level, making it suitable for audiophile-grade applications. Before that, it was as sharp and cold as a swiss knife. Feb 27, 2019 · Both JFET opamps, OPA2134 and TL072 have higher distortion than LM4562 and NE5532, in all 3 tests. Aug 13, 2014 · G'day all, interesting comments. 2. Is this correct behaviour. Now the results are pretty much identical which is not what I was expecting. great results running OPA2134's with at least 470uf Nichicon & 0. D. com ). So mostly on a whim I replaced the second stage OPA2134 with an LM4562 that I had on hand and my DIY P06 has gone from boring, to lively and crisp and 'musical', all apparently the result of using an LM4562. I find OPA2604 more laid back/smoother and LM4562 very crisp/more forward. ナチュラルビューティー。脚色がほとんどない、いわば素肌美人である。音の抜けが良く、ジャンルを問わず使える感じ。超高域の解放感はもう一歩か。でも、充分リファレンス用途までいける。単価も音質の割に破格と言っていいだろう。 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。 I've dialed back the tube volume some which reduced the bloated sound stage to a bit more normalcy. Even on diyaudio where you will find some of the most experienced engineers, not just armchair scientists, in recent years many have begun to change their stance on the conclusive of measurements to audiblility. But $40-57 each Careful swapping in a higher bandwidth part, they can oscillate in "old" circuit designs and not all parts are unity-gain stable. Pinout of packages is standard - always the same. I would like to simulate them using a circuit like below, but I don't know how to configure IG1 current generator properly. Need to make sure the power supply voltage/currents are in order otherwise the opamp may have a short life. They do sound differently on different type of loads and i'm not a golden ear. Single circuit op amp, AD797, LME49990, LME49710, OPA627 etc: Original file: https://www74. Aug 2, 2008 · So I got a pair of LM4562 op-amp for my Zhaolu DAC three days ago. 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. 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 way to 500 mW. (Came with the other DAC an Aune X8 XVIIIth. The result is better highs more clear but the lows are not so punchy as with tl072cn. Does that make sense? Nov 19, 2015 · 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. GMT+8, 2025-5-19 06:03, Processed in 0. Jul 5, 2006 · Yeah, LM4562 is a good alternative, I think it can directly drive headphones without need of a buffer. Apr 9, 2008 · The LM4562 has a lower offset voltage (+/-0. [/quote] Mar 10, 2017 · OPA134 — точно такой же как и OPA2134, но одно-канальный, на левый и правый канал ставится по усилителю. But definitively not in the LPF at DAC output of the Tag. I have tried OP27,AD797,AD746, AD827,OP275,OPA627,LT1028,OPA2604,OPA2134,LM833,NE5532,SSM2139(rare but good)in various CDs, pre amps and phono stages. output power sweeps into 32 Ω load, with low (0 dB) and high (10 dB) gain settings. 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 OPA1656 has lower typical settling time than the LM4562 (800nS to 0. Mar 23, 2025 · For the test I have chosen well known dual op-amps LM4562, NE5532, LM1458 (bipolar input) and OPA2134, TL 072 (JFET input). You can use a combination as well. As to the current consumption of the LM4562, I measured it at 10-11 mA in a preamp circuit. It is difficult to say which one is better. I like the phono preamp (an Acoustech PH-1P) but couldn't help wondering if the LM4562 would make an improvement. Feb 24, 2024 · Both JFET opamps, OPA2134 and TL072 have higher distortion than LM4562 and NE5532, in all 3 tests. IMO the OPA2134 is sort of forward, loud as mid bass heavy, a bit too warm and lacks top end refinement. To my ears, it sounds much better and has good bass. But that does not say anything about the SQ. de and as stated on their website, it arrived without a power supply. 4" plug). The x134 and x132 are available in quads, where the x604 is available only in dual and singles, probably because of the power limitations of a quad package. Dec 2, 2010 · 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. 2014-03-19 3:31 pm LM4562 is the latest hot item, in the parts bin but not experimented Sep 1, 2023 · NE5532 vs LM4562 The LM4562 is a high-performance op-amp renowned for its exceptional audio quality. Currently I am using the LM4562 in an Aiyima A07 and they work fine. 1; 2; 3; First Prev 3 of 3 Nov 25, 2015 · allhifi, it really isnt worth trying to discuss this sort of thing here, it never leads anywhere. 2uS to 0. I replaced those in my motu 828 with LM4562, sound improved remarkably. Good Soundstage Aug 28, 2023 · 2. I replaced the OPA627 with the LM4562 once again and made sure the contacts were as tight as possible. I suspected that the contacts to the DIP8 socket were bad with the LM4562, as I found the contacts were quite loose when I inserted the LM4562 previously. 9/+8. We get lower current noise and better EMI resistence. 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. Oct 29, 2009 · Overall sound is similar to the OPA2134 and LM6172, which is to say more transparency and more involving than the OPA2228 OPA2134 FET input. I used a 110 Ohm source load resistor in my circuit vs 10 Ohms in the original LP 797 Collins design. 3. For the NE5532, good options are the NJM4558 or TL072. 3 days ago · Archiver | 手机版 | ( 鄂ICP备05007555号 ICP证:鄂B2-20130019 公安局网监备：420100007348 邮箱：1343292467@qq. Although many people dismiss the NE5532 as an obsolete component and try to locate a replacement, the NE5532 is still adequate for most applications. Jan 8, 2017 · LM4562 and NE5532 show almost identical performance in I/V stage, while OPA2134 is 2 dB weaker. If anyone would be kind enough to try to help me out that would be great. Aug 24, 2012 · --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 for headphones but consumes over 5ma,in my flac player battery lasts 5 hours with it,i have to change it to <1ma. Double blind AB, the TL074 circuit had audible hiss from the speaker, and the 2134 circuit did not. cold Treble (Natural) . It is probably 8 pin DIP thru hole plastic package (2 rows 0. In phono, it is all and then some. Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. TL072 & OPA2134 are very nice operational amplifier. 装備されていて、癖の無い再生音を楽しんでいます。 そこで評判の良いバーブラウン opa627au が交換の候補に成った。 バーブラウン社自体は潰れたので、在庫品のみが出まわっています。 Feb 11, 2021 · I last tried the circuit with OPA2134 in year 2000, and with TL074 in 1992. That was the circuit where the OPA2134 sounded better. The schema is buffer -> potentiometer -> gainstage. I tried the 1656 in there but didn't feel it added anything. The OPAx132 amplifiers are different than the OPAx604 in that the x604 can use ±24V supplies, whereas the x132 and x134 can use only ±18V. The AD8599 is on it way and some highly respect it. Feb 20, 2021 · The BJT input LM4562 has lower typical input voltage noise (2. In the end, that does it for me! Interesting on the 'high impedance' aspect, but again why does that make a difference? Regards, Felix. However a pair of the AD797BRZ is slightly better, just slightly. These are different than the Japan radio JRC4562. Sorry If I missed the correct thread. 5V to ±17V. However the Lm4562 can oscillate in inappropriate circuits due to its speed. THD vs. 2020-07-29 7:38 am #46 Oct 23, 2022 · I did try OPA2134 in this circuit first, but saw almost half a volt DC offset, decided to try LM4562, and wound up settling on those. For the LM4562, you might consider the OPA2134 or LT1358. If you use TL072 opamps, keep resistor values above 2. I've gotten excellent results from OPA2134 in DIP-8 packages. It's nearly very good but I suspect the circuit doesn't bring out its potential. OPA2604 is a little bit faster. g. NE5532 is still very good performer, but LM4562 is excellent here. I would say it depends on what circuit. May be oscillating so hard to judge. I had rolled to LM4562 and will intend to roll with LME49720HA and LME49860. A lot of people swear by the OPA2134, they are a bit expensive. I recommend building the P99 sub bass filter too, especially if your loudspeakers are ported. Apr 16, 2011 · Just to add to your list, the OPA2134 ($2. 基本的に今使っているlm4562の評価点を1. 01%, 10V step vs 1. The older ones (Signetics) sound more warm and analog with a bit of an aura, but less accurate. It can’t drive as low of impedance loads, and can’t quite match the 5532’s high frequency distortion at higher gains, but it comes so close in most Jul 26, 2020 · @chermann bro already played with LM4562, LME49720 & OPA2134 (BB), and listened for hours. Dec 16, 2023 · 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. 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. djk. The 2134 is an FET design, however, for those who prefer that, and it does have a greater voltage swing possible--- it can be operated on =/-18v; the 4562 is speced only to =/-17v. 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. Both OPA2134 and LM4562 are dual and pinout is the same. Jul 9, 2008 · If you can go with OPA2134 (dual) then go with LM4562 - it is exceptional amp. Of these, my favorites are OPA627,AD797 and OPA2134. " Feb 28, 2021 · 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. Biasing into Class A Jun 20, 2016 · The NE5532 is still a decent op amp. Treble with a bit Warm . I. Aug 1, 2011 · It has significantly better noise performance than even the NE5532, LM4562 and far better than the OPA2134. 0032% All were left to fully warm up and then I measured the total amp output DC offset, the 1kHz THD by doing a RTA and the opamps' running temperatures. zippyshare. The LM4562 is unity gain stable. Jul 4, 2009 · Hello. So I played the LM4562 for a lot longer trying many other CDs I was familiar with. Now the LM4562 sounded like a May 22, 2008 · I dont believe there is an overall best op amp. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. My guess was right. 158871 second(s), 18 queries . Aug 24, 2018 · THD+N Ratio vs Measured Level / Unity Gain / 100k load / 22. This is the most important mod in the series of possible mods because it's like everyone on the net with a Zhaolu is saying that this is a very good upgrade, the others being OPA2107, OPA2134 (or 2132, both not as good as the rest though), LT1469, the king of op-amps (and overly Aug 31, 2017 · Обзор безэкранного Hi-Res плеера Zishan Z2. Can you make me an advise: should I change the default 3x NE5532P and which opamps can fit this board? Other Parts Discussed in Thread: LME49720, LM4562, OPA1654, OP07, OPA2134, TL072, OPA1652 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？ Jun 13, 2016 · ポータブルアンプのオペアンプ、オペレーションアンプの交換の実験です。なかなかオペアンプの聴き比べは手間がかかるもの、今回は安価な価格帯のオペアンプから、様々な聴き比べをしていきます。 Feb 6, 2018 · 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からラインアウト Feb 23, 2019 · AIYIMA A07 TPA3255 Amplifier Measurements LM4562 option I received my A07 yesterday, on January 6, 2021, shipped from Italy. Joined 2010. So The V6 Classic opamps have notably lower DC offset in this circuit than OPA2134, and only slightly higher DC offset than LM4562. My favourite dual is OPA2604 and that's what I use in my CDP. One thing is interesting in that with the OPA2134's in place the extended bass end of the ESP P06 seems much more noticeable, yet with the LM4562's the bass sounds 'tighter' without the almost 'bloated' bass sound of the OPA2134. May 18, 2016 · LM4562; AD8512; OPA2209; And for reference, I am testing this with: One of my favorites, the OPA2134 is 9th in slew rate on this list. LM4562 is the best performer in differential amplifier. Oct 2, 2021 · 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 Jan 7, 2021 · You see the opa2604 has quite a thick sound, easy to listen to, not bright or analytical in any way and the LM4562 leans in the opposite direction, not too much mind but enough to liven up the opa2604 and put some sparkle in there while the opa2064 beefs up the low end of the LM4562 quite nicely and the end result is a fuller rich and detailed Feb 11, 2021 · CS4392 with stock OPA2134 output filter is attached as image 2 and in percent as image 3. 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 th Nov 9, 2012 · 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. This may be the case with low frequency filters. (socket) without doing any soldering. Jan 19, 2023 · OPA2134 - Neutral but highs are rather shut in and it's a bit flat LM4562 - Clean and airy treble but voices are rather disembodied and piano is quite percussive. But I am unable to find any so I looked into others and came up with the LM833 (around 1$ each) or its high fidelity counterpart, the LM4562 (5$ each). 7nV/rtHz @ 1kHz vs 4. I've ordered some opa2604's from ebay still in transit to play with. There are several versions of the NE5532. May 24, 2015 · The OPA2134 is more a better replacement for the TL072 when you need a FET type. I should have done my research a bit better because because I overlooked OPA1612 which is purported to have superior performance compared to LM4562. Can I use the LM4562 or NE5532 in devices that need to save power? Yes, both can be used in devices that don't use much power. Regards, Felix. Mar 15, 2014 · - as to a favourite op amp, mine would be the LM4562. I also tried the lm6172 in the Tag but preferred the AD8620. Jan 24, 2017 #3 Dennis, thanx for the work done. Feb 23, 2021 · I tested three op amps in the circuit: NE5532, LM4562, and OPA2134. 2010-11-03 11:12 am The LM4562 would work perfectly The OPA2134 is a lower spec version of the OPA2132. Feb 28, 2021 · OPA2134 has good tone and detail when in single mono mode ie with two op amps one per channel. The result of the old NE5532, that is slightly better than LM4562, is a small surprise to me, I have expected the opposite result. The LM4562 has a wide supply range of ±2. The OPA 627 is well over price and is bass heavy and it’s not worth the price you pay for it 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. 4kHz bandwidth Again 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. 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. NE5532 worked great but DC offset was 45 mV. #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 Dec 22, 2016 · LM4562 in my revox player took more than 100 hours to sound good. I tried the LM4562 in a preamplifier instead of the original design's OPA2134. 2k, and remember that you'll need to include a muting circuit to prevent 'chirps' when power is removed. 7 mV 0. Feb 26, 2008 · I´m still chewing on my layout for a 6 channel preamplifier with LM4562 (or OPA2134). Nov 2, 2010 · If you have NE5532 after the volume potentiometer, than exchange it with OPA2134 . I chose them because I already have them in my hands. Thread starter pma; Below is the measurement of THD vs. Joined 2011. #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 They don't show, in the data sheet, the distortion spectrum, but I would not be surprise of higher order distortions in the LM 4562, and some say that the LM4562 do have a quite flat soundstage. Thought it was quite thick sounding and lacked air. I think that I've just become to used to the OPA2134 'sound'. 0025% AD8599 (SOIC, Orange trace) +12. Dec 22, 2016 · OPA2134 vs OPA2604 vs OPA2107. The latest and greatest is the ti/national LM4562 which is quiet and has a lot of drive current. Does the OPA2228 sound much better than OPA1612 in the same circuit? And how does it compare to LM4562? Apr 12, 2019 · 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. The OPAx132 is the slightly better version for DC critical applications. se-u55sxをlm49720(=lm4562)に置き換えようかと思って色々確認してたのですが、lm4562の出る味が強烈に出過ぎて困ってしまいました。あといくつか面白いことを発見しました。 lm4562はopa的ななめらかにつないだ感じの音が、lm6172はフラットで Jul 4, 2009 · I got the LM4562 Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . Used LM4562 a few times, some suggest OPA2134(?) is better. 非常抱歉，您暂时无权限进行此操作，请登录论坛后即可正常浏览。 Feb 23, 2019 · It was built both with LM4562 and OPA2134. 7mV max) than the OPA2134 (+/-2mV max), but the LM4562 also has a higher input bias current (72nA) than the OPS2134 (+/-100pA). Be sure that package is plastic DIP as I described a not a Aug 26, 2018 · lm4562、lme49720：三频非常平衡，高频中规中矩，中频和低频都不错，声场不错，但久听感觉高频缺乏感染力，总体还是不错。 推荐度：★★★☆ LME49860：三频非常平衡，高频通透，中频和低频中规中矩，声场不错，总体还是比较耐听，感觉比LM4562、LME49720好一些 4 days ago · Archiver | 手机版 | ( 鄂ICP备05007555号 ICP证:鄂B2-20130019 公安局网监备：420100007348 邮箱：1343292467@qq. Is it me or this is the case? Any other experiances, or thoghts are welcome. Jul 16, 2021 · господа вопросик твикаю карточки звуковые знакомым обычныно на выход ставлю lm4562 но вот очередную карточку взял себе и думаю может етсь что то лучше ? на 1 шт цена не суть важна May 13, 2015 · 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 I found more accurate and fast but not necessarily musical. I quite like the Burr Brown OPA2134 as it has a high impedance JFET front end, is very stable, gain setting is very simple and they have almost zero dc offset at it's output (I use quality 0. com and all are unity gain stable. One of them is a linear Jan 10, 2006 · [quote author="jackies"]It's said that NJM4580 is what creates signature blehringer sound. The NJM2043 should be adequate here. Natural Mids (Thin and unchanged) . html0:00 In The Rain (Muses02)1:58 Silly (Muses02)3:31 lost in the dream (Muses02)4:02 忘れられない Jul 7, 2021 · For example, I´d like to check the Zo impedance when capacitive load are in output of LM4562 and OPA2134. Ultimately, I found the huge amount of detail a little fatigueing, and reverted to the OPA2134. ~42mA drive should be enough, I will have to look at its output impedance characteristics. I was surprised because, I'm not a 8620 lover. The noise figure is more important in the first op amp position, which is why I'm using an NE5532AP. 1" apart. R. I've recently ordered my first DAC (AliExpress link). Oct 23, 2005 · OPA2134 versus LM4562 The National LM4562 SMOKES the OPA2134 in specs for THD,IMD,CMRR, and Noise Figure. OPA2132 is not identical to OPA2134 " except offset" as Groner claimed. Sound Science. Jul 5, 2006 · "Famed" xiang Shing DA-01A which only allow me to change only 1 OP amp. I am testing the A07 with 2 different power supplies. Jan 7, 2021 · You see the opa2604 has quite a thick sound, easy to listen to, not bright or analytical in any way and the LM4562 leans in the opposite direction, not too much mind but enough to liven up the opa2604 and put some sparkle in there while the opa2064 beefs up the low end of the LM4562 quite nicely and the end result is a fuller rich and detailed I also installed a pair of LM4562 at DAC output of a DEQ2496 without problem. They're pretty spendy, however. 4/+0. LM1458 is one of the first op-amps usable for audio and it is dated at sixties of the previous century. It’s $0. as well and I might try a opa2134 I have lying around. Bipolar candidates include the LM4562 or LT1469, either of which is IMHO overkill for a line stage. Aug 8, 2021 · muses8920とlm4562の比較. Two cases were evalutated – in a Aug 22, 2014 · It's clean, neutral and has reasonably good imaging, and stable in most circuits. The LM4562 is especially good because it uses power efficiently and performs very well. At the risk of immediately coming across as exaggerated and/or hyped -- the "battle" was simply an epic slaughter! Aug 22, 2007 · OPA2134 (DIP, Black trace) +2. May 2, 2020 · 运放opa2134好不好看了就知道-opa2134是音响电路中常用的一款低噪声、低失真双音频运放，在处理音频信号方面，不逊于美国ns公司生产的超低失真运放lm4562。 Mar 19, 2014 · OPA2134 or OPA2604 is good opamp . Jun 3, 2013 · LM4562 vs OPA2134 vs [ ? ] Home. One direction has 3 diodes in series. Aug 21, 2008 · Given a choice, I would pick the OPA2132 over the OPA2134. Highest curves are OPA2134+BUF634, middle LME49600+OPA2134 and lowest LME49600+LM4562. I've replaced the old TL082 in my active crossover with opa2134. May 22, 2015 · G'day all, in the light of a recent experience where a DIY phono stage of mine using LM4562's went into destructive oscillation, I think that perhaps the like of the LM4562 are possibly 'too good' and touchy and I now feel more comfortable with the like of the OPA2134 and the NE5532 at least for high quality audio applications. Choosing between the LM4562 and NE5532 depends on your specific application requirements and priorities. 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。 Just perusing round looking for info on the opa2134 as I have just ordered a few for a little rolling. When used as a single dual stereo op amp I find the soundstage a bit flat and a thick sound. Very neutral, does everything well, smooth, good voices, even frequency response, good tone. 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. I like their sonic signature. Thanks. When closed with top cover firmly, both versions behaved almost same. Warm Mids (Deep and Full) . The OPA1642, SMT-only Jan 7, 2021 · AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option. I tried using one 2134 and one 4562 and it oscillated. 47uf PP film directly from each chip's supply pins to ground. So far, new opamp seem crispier with better instrument separation but new power supply definitely gave it louder oomph allowing me to hear those sound whispers in my KEFLS50s (which are proven Aug 28, 2023 · 2. Get a 18v to 24v wall-wart and a 78LS15 / 79LS15, or if you decide to go for the standard regulators, put some load on them, as the LME has a very low power comsuption, and the regulators need more load. spem gsfbh drtaetv vjjah xoks njhbwrc rwjei vlkt foelso tmlhi