Lm4562 vs opa2604 reddit. gif Ok, no chip without drawbacks. but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. Dec 28, 2017 · ne5532，opa2604，lm4562 没有突出的频段，因为据说资料里的开环增益全频段基本都差不多，感觉和opa2604没差，下次换了稳压再 Aug 28, 2023 · 2. Jun 13, 2012 · I've put the spare standard board back in and it runs much cooler. V S = ±15V, R L =2kΩ,R SOURCE =10Ω,f IN = 1kHz, and T A Dec 15, 2014 · It looks dubious to me. OPA2604 is the most "coloured" sounding (in the nicest possible way) and the LM4562 probably the more clinical. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. May 15, 2022 · Buggle2 Riaa board. This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. The bass was less muddy and overbearing while the midrange and treble clarity improved greatly. The OP275 run at 38 degrees and the NJM4580 at about 42 degrees. They are the three that are the consistently best performers. Aug 22, 2007 · I always replace the NE5532 in a Rotel's phono circuit with a FET OPA2134 or OPA2604. That said, a few people consder the OPA637 an 'upgrade' from the AD8620. Which chip should I pick for Aiyima A07? Is the LM4562 OP Chip worth the extra $$ ? Should I ignore it and take the 4th option? Setting this amp for KEF Q350 with SMSL SU-6 DAC. The other options would be a FET device such as an OPA2604 Jul 30, 2023 · By swapping the stock NE5532 op-amps, you can tailor the amplifier to your preference. 83 k : 100 : 150 : 22 nF//4. for all point (buffer . Watch out for fakes if buying op-amps. I tried the 1656 in there but didn't feel it added anything. Purchased at Amazon. When my v3 gets here, I'll try out the OPA1656 and OPA2604 I have on hand and report back. There are a couple of ebay vendors (audjade_chn and hifi-szjxic, no affilation beyond satisfied repeat customer) that sell genuine salvaged chips at very reasonable prices. 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 Oct 8, 2001 · TI/Burr Brown's OPA2604 is a good alternative as well. It seems to miss a certain slam I had with the opa2132, might be because of the lower output current it can supply, 16 vs 40mA. 5 mA quiescent current. For example you could run half a dozen TL072's for the current one NE5532 or LM4562 draws. Facebook X (Twitter) Reddit Pinterest Tumblr WhatsApp Email Share Link. 5ma. I've been researching and designing possible solutions around LM833 op-amps. Then National Semi, for marketing reasons, decided to create a new part number. I note that the LM833 and LM4562 datasheets contain identical RIAA phono circuits in their application notes. Apr 6, 2020 · For dual op-amps I like OPA2604 as they are FET input and are valve like sounding in character with their very nice mid-range, but went further as someone gave me some Burson V5i hybrids which aren't quite as nice in the mids but are better over all. It was better sounding than my Integra D40. The opa2604 is a fet opamp and 4562 is a bipolar based IC. strangely its probably the most boring sounding one when paired with 400i but the best sounding with hd600. Nov 25, 2015 · LM is the best overall, it sounds the most balanced, very natural/smooth/clean, doesnt exaggerate anything but can sound lacking in impact. So after 2 hours of troubleshooting, swapping amps and cables around, eliminating variables and such I was able to realize that the case was shorting out the right channel somewhere if one of the back panel screws was tightened just a biiit too tight. Apr 16, 2011 · Get it all working first and then I would suggest trying the OPA2604 and perhaps the LM4562. The lme49860 is discontinued (they're nice for (-/+22v higher voltage applications) get a lm4562 instead, they're super cheap since they've been discontinued and I believe both digikey and mouser has them. Having LM4562 in both amplifiers and they start to sound the same. The first one is sounding warm and innofensive, and the LM 4562 is cleaner and leaner. I've replaced the old TL082 in my active crossover with opa2134. There is a whole family of LME parts of op. Some vendors market them as the same as well. A bit of a tangent here but after swapping the op amps I lost the right channel. 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. To the future, maybe OPA2828 with DIP adapter NE5532 vs OPA2604 -> the second is more musical, better voice OPA828 DUAL with DIP8 adapter Honestly I don't want to open it again. bipolar in the NE5532) there may some perceivable performance differences. ti. May 27, 2017 · opa627 chips should measure roughly 48kohms to 56kohms both ways across pins 1 and 5 and should draw about 7 to 7. That's a FET input op-amp though. the differences aren't huge, but big enough to make a change worthwhile. I've ordered some opa2604's from ebay still in transit to play with. I've used both LM4562 and OPA2604 from the suggestions. An interesting Aug 22, 2007 · Again the urban legend (fake news?) surfaces. There are countless others, 4558, 4560, 4556, 2068 etc etc. This video title is; 2Which OpAmp is Better for 20W Class A Amplifier - OPA2604 vs NE553 Sep 4, 2021 · Plugged it into my system with Polk Reserve R20s and I was impressed. , Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111 OPA2604 SBOS006A–SEPTEMBER 2000–REVISED DECEMBER 2015 www. MUSES8820 is the best, IMHO. Help! Feb 28, 2021 · The LM4562 datasheet indicates it has at least 12dB greater open loop gain than LM833 at all audio frequencies. Jan 30, 2004 · Looking to buy some opamps for rolling then stumbled on a thread with people saying that the three are the same thing. The fastest slew rate a needle in a vinyl LP track can provide is in the region of 2-3 V/us, I seem to remember an old IEEE recommendation of 6 V/us as plenty for vinyl audio hi-fi use. One can almost not find two more different sounding IC:s. 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. ru Aug 22, 2007 · LME49720 Vs LM4562. The LM4562 and LME49720 are IDENTICAL except for the ordering number and marking. Apr 1, 2023 · 答：OPA2604的封装有两种，一种是标准双列直插封装（DIP），另一种是更小型的SOIC封装。在DIP封装的OPA2604芯片上，德州仪器曾经采用"Burr-Brown"标识并印刷了BB字母的图案（也就是BB字符的LOGO），这是因为它们曾经是以该品牌的名义进行销售的一个品牌系列。 Jul 5, 2006 · Hi All, Can OPA2604 be directly swap with LM4562/LME49720HA/LME49860 in a DA output? thANKS. I also used a pair of Mullards 5654 8100 valves instead of the Jan 5654 stock that came with the T6 pro which can be a little bright at the top end but the Mullards are like the opa2604, nice and thick sounding with a strong low end. The sound is much better but there's still something a bit "hi-fi" and "grey" in the presentation. The best solution is actuallly to bypass +V to ground, and -V to ground. Feb 29, 2008 · I've read about the 'Sondigo vs. for after dac u need a color i favorate opa2604 & muses8920 muses 8920 is a Jfet for after D/A input impedance is very important . You probably don't need any compensation caps if your layout is good. Thread starter Ryssen; Start date 2007-08-22 9:19 pm; Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. Amplifiers Mar 19, 2014 · There are many that are good and many that excel in specific areas. Jan 1, 2019 · Sparkos SS3602, OPA2604 and JRC4580D, NE5532 small differences MUSE02 the worst! Weird sound, where are the bass? Sparkos is too expensive (85€ x2), then OPA2604 is the best choice. Choosing between the LM4562 and NE5532 depends on your specific application requirements and priorities. Arguing for faster opamps in a phono circuit is an overkill. Jun 8, 2010 · Attached are spectra from an OPA2604 and a LM4562 I have tested in my DAT recorder (gain of 10 or so I believe). LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. One of them is a linear International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Nov 26, 2017 · thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. Posted by KanedaK (A) on December 22, 2016 at 16:38:35 . I find OPA2604 more laid back/smoother and LM4562 very crisp/more forward. How to choose between lm4562 vs ne5532. Perhaps the LM4562 came out before the change so they made a new part number to indicate high end part. The 5532 is an excellent opamp when used as a simple gain stage but I have reservations when its used as the final stages in CD players where HF hash (which is always present in the signal from the DAC) can I suspect impair the final result. Edited April 6, 2020 by muon* Nov 16, 2008 · Bye bye AOP2604 and welome LM4562, bye bye muting transistors. 1 k : 3. My favourite dual is OPA2604 and that's what I use in my CDP. I tested a few in both units and the best combination to my ears at least is the opa2604 in the output stage of the T6 Pro and the LM4562 in the A07. the ne5532 looks a bit harder, narrower and more direct, the other two a bit more relaxed and Jan 3, 2023 · There are clearly sounddifferences between opa2604 and lm4562. 7 nF//500 pF 47 nF//33 nF LM4562 www. Aug 22, 2007 · National uses an additional 'E' in the name (LMExxxxx) to indicate their new high performance audio products. I cannot confirm that the OPA2604 has 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 ne5532 should be common. 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. In audio, you may get by with a V+ to V- bypass, but if the goal is to stablize the supply while its output delivers current to ground, then the bypasses really should be to ground. Then I dropped it some OPA2604 OpAmps I had lying around. Have to find some Philips CDi infos seems! Will tell ya! ••• Jun 8, 2018 · The OPA2604 is FET input IIRC, so using a BJT part like the 5532 would necessitate checking impedances to make sure the resistor values around the opamps are suitable for using something other than a FET opamp. To my ear that upgrade took the device from being good for the price to just plain good. This has been dispelled by people employed by NS and TI -- back then and currently. Home. Correct me if I'm wrong. NJM has a more analytical, detailed sound but it sounds a bit thin and isnt as smooth I would not expect rolling $10 worth of OpAmps to be significantly different. by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES03 0:42~ 1:42~ 2:43~ 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 Sep 1, 2023 · NE5532 vs OPA2604 The OPA2604 is a high-performance audio op-amp known for its exceptional sound quality and low distortion characteristics. If you don't know or don't care, just stick with the default and save the money. de and as stated on their website, it arrived without a power supply. Feb 25, 2007 · Bypassing from V+ to V- will be good. if u have dual voltage and can use DIP pac . I will measure the A07 output power and spectrum cleanliness with this power supply. The LM4562 was introduced first. Also "good" can mean different things. The TL072 is surprisingly capable too don't believe all you read try it. ••• Apr 2, 2023 · LM4562和OPA2604都是高性能运算放大器，具有很多相似的特点，但是也存在一些差异。 电路结构： LM4562和OPA2604采用的电路结构不同。LM4562具有高开环增益、高输入阻抗、低偏置电流、低输入噪音等特点，其电路结构为德州仪器公司(DTI)独创的推拉式（Push-Pull）输出 Приложение к сайту http://hifi-audio. I cannot recommend a 48V power supply because of the A07 internal temperature with the 48V PSU, in case I I've dialed back the tube volume some which reduced the bloated sound stage to a bit more normalcy. A little better than the stock opamps. Instead of the default NE5532 Op Amp chip, Aiyima factory can customize the A07 with a different Op Amp chip for you for a different sound signature. LM4562 is one of the choices. 5A. Both are musically better than ne5532, in my subjective opinion. At least it lacks the unfavorable 7th which the OPA2604 has. It has a strong output stage as well as JFET inputs. 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. Jul 5, 2006 · hi muses02 is a BJT - opa 627 is a Difet muses 02 is colored op amp --- 627 colorless opamp. go muses01 for this point (I/V stage after DA). Because of (at least) the input stage differences (JFET vs. btw, you can do a bypass V+ to V-, and add a bypass from either V+ or V- to ground. Feb 23, 2019 · AIYIMA A07 TPA3255 Amplifier Measurements LM4562 option I received my A07 yesterday, on January 6, 2021, shipped from Italy. Nov 10, 2013 · I have tested OPA2604, LM48960, LM4562, OP275, NE5532 and a Burson V6 Vivid. The V3 is compatible with a variety of 8-pin dual op-amps like Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA, allowing you to experiment and find the op-amp that best suits your audio needs. Apr 21, 2007 · For bjt (transistor input) I would suggest he LM4562, NE5532 or LM833. LM4562 and LME49720 are the exact same part just different model stamped (stated by an ex-employee) The LME49860 is just a Aug 1, 2024 · And when I was making a Whammy headamp, I got by far the best sound with the Muses 02. I haven't seen where the Muse are used, maye on the PS lines of the opamps? No DC blocking caps? I don't know how sounds BB OPA2604 beside LM4562 but it will be an easy upgrade for sure. ••• Aug 24, 2018 · THD+N Ratio vs Measured Level / Unity Gain / 100k load / 22. com 6 Specifications 6. 10 to 12 ma would be typical for the total combined current of the two amps in one package. Dec 22, 2016 · OPA2134 vs OPA2604 vs OPA2107. The 5532 has a higher Iq than 4. The LM4562 has higher 2nd harmonic (if that is what you wan´t) but higher 5th too. Apr 7, 2007 · Originally Posted by balou /img/forum/go_quote. However, be prepared to shell out anywhere from Rs. amps and drivers yet only the LM4562 and LM4702 that are not part of these families. Forums Dec 14, 2007 · At the high end, the NatSemi LME49710/49720/49740 (LM4562) family has impressive specs - and are generally the best for almost all applications except as a low-gain or unity-gain buffer. Worry-Free Apr 17, 2021 · I will show the difference between the OPA2604 vs the NE5532 OpAmp. Electrical Characteristics for the LM4562 (Note 1) The following specifications apply for the circuit shown in Figure X. OPA2604: The most polite, non-fatiguing, but also the least dynamic and exciting with the smallest soundstage. The lettering isn't perfect for one thing, some appear to be at an angle and some out of line. (Came with the other DAC an Aune X8 XVIIIth. AskEngineers is a forum for questions about the technologies, standards, and processes used to design & build these systems, as well as for questions about the engineering profession and its many disciplines. The cost is about $30 in a local store. Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. Oct 10, 2020 · Aiyima a04 with LM4562 is more dynamic, goes deeper in the bass and sound clearer. I'm still (perhaps irrationally) fond of the OPA604, maybe because some equipment I really like used it. 1200 each. I didn't investigate further, and I didn't have the OPA1656 nor the 1642 to try. 1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) Jun 12, 2014 · LM4562 would be my choice for a player like this. X-fi Prelude' comparison a few threads down and I basically concluded from that the AD8620 might be considered better than the default LM4562. Also comparisons of the OPA627 and OPA637 would be good. 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. May 19, 2017 · By most standards the LM4562 is a superior op-amp to the NE5532. Jan 3, 2023 · There are clearly sounddifferences between opa2604 and lm4562. I am testing the A07 with 2 different power supplies. I'd give the stock NE5532 a chance, you might just like them well enough. Tucson Blvd. as well and I might try a opa2134 I have lying around. 7 stereo receiver, which isn't great by any means, but the A07 was clearly better (although not amazingly better). Aug 3, 2013 · JRC5532DD: Not too far from the LM4562, but it seemed a bit harsher at times and less natural sounding OP275: Seemed to accentuate the mid-range a bit more than was natural, so vocals seemed more in-your-face and a bit overbearing to me. No integrated opamp will give you "tube sound". For FET input the OPA2604 and OPA2134 types are recommended. 透明感がある。低域に適度な量感がありつつキレが良い。解像度も良く、音の速さを感じる。opa2604のクセが気になる人には、良いチョイスかも知れない。几帳面なほど正確であるが、面白味にはちょっと欠けるか。リファレンス向き。卓にも良い。 muses8820 I find the A07 to be adequate in it's stock form but mine really improved when I swapped the NE5532 OpAmps for the LM4562. #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 Engineers apply the knowledge of math & science to design and manufacture maintainable systems used to solve specific problems. So that's good For your circuit, a 5532 or 4562 is about as good as it gets. 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. 400 - Rs. There are a pair of OPA2604 in the DAC I/V that seem to run quite hot as standard (55 degrees) I'm wondering if this is just me being paranoid as it runs warmer with the LM4562. Jan 7, 2021 · I have ordered Mean Well RS-100-24 SMPS power supply, 24V/4. 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. Aug 24, 2018 · 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. Jan 7, 2021 · The LM4562 sitting in the A07 and the BB opa2604 sitting in the preamp output stage. It provides a wider bandwidth, lower noise, and higher slew rate compared to the NE5532. rbxroenfpqrlmftjcwddbwnxgysddkvagyspmupbgwavqqakmb