Njm2068 vs lm4562 specs njm2068は、低雑音､高速､広帯域の2回路入りオペアンプです。njm4558と比較して、さらにsr, gb, ノイズ特性が向上しております。位相補償回路を内蔵し､アクティブフィルタ､オーディオ用プリアンプ等の音響機器及び工業計測用に広く応用できます。 Oct 5, 2020 · lme49860 и lm4562 - один и тот же кристалл, но первый может работать при более высоком питании (разбраковка, полагаю). Something similar happened to VN2222 MOSFETs. I have 8852. pdf [2,21 Mb] (cкачиваний: 155) Посмотреть онлайн файл: Datasheet LM4562 lm4562. Aug 22, 2007 · the LM4562 and LME49720 are one and the same chip; the only difference is the marking on the package and the orderable part number. output voltage at 1kHz and 10kHz, measuring BW 45kHz. Загорелся желанием поменять древний ОУ М5220 в УВ своего "Pioneer CT-S740-S" на что-нибудь современное и качественное. Apr 16, 2011 · On my E-MU 1616m I replaced the NJM2068 that regulates the output stage of the heaphone amplifier with an LME49720 that was lying around. The picture is similar as in Wayne Kirkwood's post in this thread. It sounds really fine with clean records and also with any Nov 7, 2022 · The LME49720 is certainly a fine opamp; it really is just a re-numbered LM4562--EXACTLY the same specs. Aug 24, 2011 · THD+N vs FREQUENCY: Here are the favorites plotted vs frequency also taking the output directly from the gain stage op amp under test. Jan 23, 2016 · Also placed an additional DIP socket where the LM4562 was soldered into the pcb. The opamps replaced: changed the LM4562 to LME49720HA - replaced the 4580D with AD8599. The table below compares the basic audio-performance specs that I am interested with. GMT+8, 2025-5-19 06:03, Processed in 0. JRE version is gain=5 stable, if I remember right. If so, I have used them quite a bit and really like the sound. 1. This is a fairly basic '90s unit with seemingly half-decent rail decoupling. LM4562 -- not by a very large margin ! 2. Recording tests thru the ADC later. 4µVrms (in a line stage the NJM4580 is noiser than the NJM2068 by about 3dB). I don't trust Groner's analysses, measurements and claims. 2003-03-17 - 5 - [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. Jan 11, 2015 · NJM2068 bei Gain bis 4 angeblich besser als NE5532 und billiger NE5534A (Philips, andere Hersteller andere Daten) hoher Bias Strom, Eingangsdioden, gutes decoupling nötig, kompensiert für Verstärkungsfaktor >3, Linepegel stabil bei Verstärkung 1 nur mit 22pF Kompensationskondensator zwischen Pin 5 und 8 dadurch SlewRate nur 6V/us NE5532A Feb 11, 2021 · The 1820 and 1616 have ceramic (likely X7R) surface rail caps but I have not removed any to measure the value. 1 4/19 2016-07-13 ACAV Jan 10, 2006 · It's said that NJM4580 is what creates signature blehringer sound. Notes: 各社オーディオ用opampの音質の比較です。個人的な主観であることをご了承ください。 なお、この比較は私が作成したpreーampを使っています。 Smarter Shopping, Better Living! Aliexpress. LM4562, 2. V S = ±15V, R L =2kΩ,R SOURCE =10Ω,f IN = 1kHz, and T A by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES03 0:42~ 1:42~ 2:43~ Apr 6, 2018 · Buying op-amps from mouser is pretty cheap with shipping being the major cost. Advice was to use LM4562 but I Oct 9, 2024 · OPA2228 vs. 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. the sound dramatically improved after changing the caps (tested with the original opamps at first) On the daughter card: Nichicon MUSE Bipolar Great forum. But even better are LME49710/20 (old LM4562) or the LME49990, incredibly low noise and distortion. So here’s my mini Op Amp shootout. Then you have some THD plots in both datasheets to look at and noise voltage specs to compare. 5V to ± 17V • THD+N (A The LM4562 has a wide supply range of ±2. Search titles only By: The LM4562's outstanding CMRR (120dB), PSRR KEY SPECIFICATIONS (120dB), and VOS (0. Virtual Systems Let the world see what you've built. C. We would like to show you a description here but the site won’t allow us. OPA2227: As you can see, the best op-amps in terms of noise in this application are very close (the NJM2043 used in the older decks like the AD-F770/990 I have only in L package, would've liked to test it as well, but it would be difficult), each having slightly different profile. May 31, 2024 · Comparing the LM4562, NJM2068, NE5532, and NJM4580, this is my ranking based on my subjective listening impressions: The LM4562 is the first. The OPA134 and OPA2134 etc. It has a brighter and clearer sound among the four other op-amps. 5V) is a OPA2604 (24V), but if it really is supplied with only 7V, than it can be replaced even with LM4562 or OPA2134 ? BTW, is it better idea to use in one circuit as few different ICs in as possible, or it just never mind ? Results NE5532 with Rl=1k1 and different output levels vs frequency NE5532 with Rl=520R and different output levels vs frequency Audio Opamps, fact, myths and THD measurement resultsRev. Aug 1, 2011 · THD+N vs FREQUENCY: Here are the favorites plotted vs frequency also taking the output directly from the gain stage op amp under test. not much more than the LM4562), with excellent linearity and output Sep 20, 2009 · I have already given the lm4562 a go and found it a bit too revealing for the type of music I was intending to use the preamp with thats why I chose the 2068dd. LM49720-Хоть многие и считают его ровным и нейтральным, но он приукрашивает, особенно склонен к музыке 70-ых. ti. Mar 29, 2003 · For moving-magnet cartridges, their ultra-high current noise makes the LT1115 and LM4562 less suitable - although if you are only interested in the noise with a record playing, the record's surface noise tends to dominate anyway unless you do something really stupid, like choosing ultra-high current noise op-amps and connecting a bunch of them Aug 18, 2010 · Later opamps such as the LM4562 and LME49720 or LME49710 are far less forgiving of poor power supply implementation and poor track layout and supply line bypassing. The NJM2068DD is the best Jun 10, 2014 · Replacement for NJM 5532 and NJM2068. I think this is less risky than other op-amps discussed as a replacement for the NJM 4565 like NE5532, NJM2068 or LM4562 Jul 4, 2009 · Actually, the best Voltage-Amplification Stage is the default NJM2068 or, for a gain higher than 5X, LM4562/LME49720. If you want better sound try LM4562 or other more costly alternatives. For the benchmark, we have the 5532 and the TL072. I also measured lower THD and IMD with RMAA in analog loopback when I replaced the original NJM2068s used for the 1/2 inputs and outputs on my Echo Gina24 sound card with LM4562s. 3rd cheap option would be NJM2068, but that one is probably the worst - it has metalic/digital timbre Jun 20, 2023 · Can't tell the difference between the original output wires vs the copper wires I stuck in there. NJM2043 is a pretty good match to begin with, LM4562, NJM2068 or NE5532 should also work well. Yes, LM4562 sounds all right for me in place of LM833. Jan 24, 2016 · a LM4562-clone with the same specs,just cheaper. It really depends how much work is involved. 5V, VEE = –2. Jun 18, 2015 · I am using lm4562 and njm2068 for my headphones, and they are great. The only position that seems a little finicky with very high slew rate devices is the record amp: stick to something tried and true like NE5532, LM4562 or as you have, OPA2228. The datasheet of the LM49720, May 2007, seems identical on all specs. Thread starter DECKY999; Start date 2014-06-10 10:55 am; Status Not open for further replies. Really only matters if you are doing 24 or 32 bit designs for specs only. They do sound differently on different type of loads and i'm not a golden ear. Then the fact that NJM4562 (which appears to actually be a second source of Raytheon RC4562) is an ancient dinosaur from the '80s with 8MHz unity gain bandwidth while LM4562 is made on a modern complementary process and hits 50MHz. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including Dec 28, 2018 · The performance under load is pretty much the same as opa2156 and is better than what I measured from el amp. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Nov 23, 2017 · I have both feet firmly planted in the objective side of things, so I decided to get the Burson's to do some measurements. LM4562 SNAS326I – AUGUST 2006– REVISED JANUARY 2010 www. NJM2068 – You'll find the NJM2068 in a fair amount of pro audio gear. I love it! Oct 9, 2019 · In my experience, LM4562/LME49720 is a little more open sounding than the NJM2068. It can't happen by accident, looks like National offered parts with already well known numbers. Oct 23, 2020 · Скачать: Datasheet LM4562 lm4562. 75 each). Now the output has mor Feb 20, 2015 · This OPA2227P($11 each) is a more expensive Burr Brown bipolar op amp that offers lower noise specs and some other improvements over the NJR 2068 ($ 0. Over this supply range the LM4562’s input May 1, 2020 · может кто знает операционники с низким уровнем шумов, такие как tl072,и какие лучше? Может кто определял на слух. I didn't try NE5534 because the specs are slighty lower than LM4562 (but indeed better than LM833). and noise than NJM2068. But now, in the D10s, situation is quite different. 2011-03-18 - 3 - TYPICAL CHARACTERISTICS Maximum Output Voltage vs. The dac x6 has alot of problems that could uses some diy correcting such as the cheap coupling capacitors or the 10khz noise from the DC to DC conversion (charge pump) May 19, 2017 · I used a 110 Ohm source load resistor in my circuit vs 10 Ohms in the original LP 797 Collins design. Good Soundstage Feb 1, 2013 · As I have previously posted, for the phono stage upgrade, I had chosen the NJM4580DD to replace the NJM4558 since it was quieter in a RIAA circuit than the NJM2068, 0. Impedances are fairly low, bypassing appears to be decent. Feb 10, 2019 · The input - should be a single dual opamp - is the gain stage and generally has the most impact on sound - the output stage should be 2x dual opamps. Is the NJM2068 is JFET or bipolar? The manual says that the TL072 must be replaced by a JFET opamp whereas the 4558 can be replaced by a bipolar or JFET opamp. 8µVrms vs. There are only 3 4558s in sight - one in the phonopre (a plain ol' NE5532 should work well as an upgrade there, as would an LM4562), one as a unit-gain buffer after the source selector and in front of the volume pot (they're actually OK for that) and another as a unity gain follower / bass enhancer with highish by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES02 0:42 ~ 1:41 ~ 2:43 ~NJM8 Aug 21, 2012 · I've had an EMU 0404 since 2005 or so. Feb 11, 2021 · The LM4562 (or LME49720) quiescent currents are surprisingly high considering the datasheet specifies typical quiescent current as 10mA and maximum current as 12mA@Vs=+-15V. Aug 1, 2023 · In my experience most of the positions in the RS-B965 are amenable to experimentation. I need to find the right balance. I did listen to them in the gain stage of my headphone amp, comparing them with both NJM2068 and LM4562. Jan 24, 2016 · You can compare the green traces in the post to compare the OPA2134 to the NJM2068. Side by side the '2134 and '2068 virtually overlaid so I didn't capture the plots. Results . So far, my favorite combo is the 2228 in the input (U1) and the 2134 in the output buffer (U3, U4). 2 and has reasonably low voltage noise. На основе плотных занятий усилителями-корректорами и The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. Joined 2009. NJM2068 Ver. 2011-03-18 - 5 - TEST CIRCUIT 100µ 100µ 2. Below please find comparisons of THD vs. I just want to make shure i use the 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。 May 14, 2025 · NJM2068DD Nisshinbo Operational Amplifiers - Op Amps Dual Low Noise datasheet, inventory, & pricing. Charts for full spectrum and for various output levels @1KHz. Good Soundstage May 24, 2015 · The opa2132/4 are great and not that expensive while maintaining excellent specs. Jan 27, 2021 · So far, NE5532 was a king in the simple, +6dB gain circuit according to post #1. On the 12th channel which I never use I replaced them with lme49722ma. com Aug 20, 2009 · Far the more, NJM4562 and LM4562 are totally different chips. This card also used two different yet similar DACs, the AKM4395, and AKM4396. Njm2068 doesn't have jfet input nor have super high loop gain or anything. Output Current V+/V-=±15V, Ta=25ºC-16-12-8-4 0 4 8 12 16 0 1020 304050607080 Output Current [mA] Maximum Output Feb 1, 2013 · As I have previously posted, for the phono stage upgrade, I had chosen the NJM4580DD to replace the NJM4558 since it was quieter in a RIAA circuit than the NJM2068, 0. May 24, 2015 · The opa2132/4 are great and not that expensive while maintaining excellent specs. Mine has the AKM4395. Choosing between the LM4562 and NE5532 depends on your specific application requirements and priorities. The problem is still with the LM4562/LME49720 noise, or I do not know how it can be called - last LM4562 chips from the Mouser have chaotically output jumps from one level to another with the period of some tenth parts of second and more. The LM833 has very similar datasheet specs to an Feb 18, 2014 · If you spend a few cents more, the TI LM4562 or LME49720 will outperform any NJM chip re. Feb 4, 2014 · NJM2068 are really quiet . distortion. cold Treble (Natural) . The very best is LME49720/LM4562 and the NE5532 is measurably worse in the D10s. Also the Bandwidth has increased from 3 MHz to 27MHz. May 25, 2011 · Perhaps you intended to write LM4562. Thousands of albums were recorded through mixers that used hundreds of the chips. 1mV) give the amplifier excellent operational amplifier DC performance. The specs of the AD8599 and the opa2211 looks very great to me. National originally created the LM4562 and then decided to create the LMExxxxx p/n's for their high-end audio op-amp family. At all! OPA2132 and OPA2228 are really good sounding op-amps. The NJM2068 has a Slew rate of 6V/uSec, the 4558 has 1V slew. 5V to V = 1, VOUT = 3VRMS, fIN = 1kHz) ±17V. Another worth considering is the NJM4562, which is claimed to be an equivalent to the LM4562. Op-amp supply voltage Mar 13, 2010 · Back to OpAmps. Get that right and they will outshine the earlier opamps. Treble with a bit Warm . The 4560 has a much higher than usual output current capability (not needed here) and is Apr 6, 2020 · They are not bad opamps at all. Frequency V+/V-=±15V, R L =2kΩ, Ta=25ºC 0 5 10 15 20 25 30 10k 100k 1M Frequency [Hz] Maximum Output Voltage Vopp [V] Maximum Output Voltage vs. Although the 4558 says it is 'electrically similar' to the 741, it's clearly not two 741s in a dual package. 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 Results NE5532 with Rl=1k1 and different output levels vs frequency NE5532 with Rl=520R and different output levels vs frequency Audio Opamps, fact, myths and THD measurement resultsRev. Very forward Mids . Jan 2, 2024 · The original NJM2068SD was SIP-9, but from my understanding, the 9th pin was an extra V+ and isn't used in the circuit. • Power Supply Voltage Range: ±2. It has a differential fet front end so noise is not a problem, i used every single op-amp i could use to drive that riaa network(lm4562, njm4562, njm2068, ne5532 , opa 2134, opa2132) no matter what you do, the dust on 33rpm simply killed the music. :thumb: I'm not an opamp expert, but it looks like LM4562 is the newest opamp out there, correct me if I'm wrong. NJM2068, 3. OPA2132 is not identical to OPA2134 " except offset" as Groner claimed. #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 Part #: NJM2068. Now i want to design a new headphoneamp. That LM4562 is going to be way too much. Mar 4, 2012 · NJM2068; NE5532; OPA2134; OPA2227; OPA2277; LM4562; Also, where's the V200 vs O2 review? "To be serious with audio equipment, you don't have to spend a lot of Jul 9, 2008 · The world's largest high-end audio community. Aug 15, 2018 · Hard to give recommendations without seeing a circuit, and simply swapping for something like the LM4562 isn't going to give you any better/different sound quality. NJM2068DD vs. Summing of information: njm2068 and opa2156 lower distortion lme49720 and opa1612/opa2211 higher distortion Apr 25, 2016 · Search titles and first posts only. Пока на примете LM4562 (либо ее клоны), OPA1612, ADA4898-2. Manufacturer: New Japan Radio. If you want to go for something that might genuinely give a different type of subjective quality then you need to look at the OPA2604 (obtained from authorised distributors only Oct 22, 2003 · So njm2043(Zin=100kohm) compared with njm2041(200k) and njm2068(300k) while ne5534(100kohm input impedance) vs ne5532(300kohm impedance) shows the same pattern, including the higher bias current for the lower Zin and noise, so actually in a higher input impedance circuit ne5532 is lower noise than ne5534 Aug 19, 2011 · really i prefer chips like the opa2107 and lm4562 aka lme49720 (or lme49710 for single-channel) but they don't have much in the way of power output, though the 4562 is good for oldschool 600ohm studio monitor cans. S skitron Jul 16, 2014 · Looking at the circuit, I'd say you could use most anything that feels comfortable driving 2 Vrms into 3 kOhms at a non-inverting gain of 2. I currently have the 0404 installed in my file server. 158871 second(s), 18 queries . If you wanna go crazy, you can change some caps too that high pass some of the bass frequencies from the diodes (once again, this is just what I have heard through the vine) or the diodes Aug 8, 2024 · The 2068 is an interesting one, similar to the 5532 in many ways. the only opamp which can replace 5219 (22. In fact the NJM2114, the NJM5532, OPA2134 and NJM2068 are all very, very close with a cartridge as a source. The difference is in PRICE---4562s are about 20% cheaper!! The OPA1656 is a generation newer opamp and has the advantages of FET design--lower noise in >3KΩ source impedance applications, slightly faster performance, and rail-to-rail output Oct 29, 2009 · In the gain stage it'll probably be LM4562 or OPA2134 for now. com ELECTRICAL CHARACTERISTICS FOR THE LM4562(1)(2) The specifications apply for VS = ±15V, RL = 2kΩ, fIN = 1kHz, TA = 25°C, unless otherwise specified. Note the distortion peaks below 1KHz on the NJM2068: Aug 22, 2007 · Having had a quick look the data sheet of the LM4562 August 2006 and of the LM49860 June 2007, the differences I detected were at the end of the documents : no mention of "banned substance compliance compliance" at the end of the LME49860 datasheet. You can take the theory further and look at Jun 6, 2019 · Op-Amp and Comparators Selection Guide - Mouser Electronics Jul 7, 2024 · Other LOW-NOISE amps for this location are OPA2227 (A bit sterile and flat sounding in the mids, I don't like it, but great resolution), the OPA2228, which has a typical BURRBROUN sound - big and boom-y (club-y perhaps), but also not my taste. To utilize AD8620 requires some knowledge on the circuit. I have a bunch of op amps from when I was playing with a cmoy back in the day (NJM2068, OPA2134, OPA2227, LM4562, OPA1656, OPA1612, MUSES8820). If you literally just want clear and balanced sound then LM4562 for the input and 2x RC4580 for the output would give that but musically probably a bit cold. Also know that the 4558 isn't a bad opamp. Description: LOW-NOISE DUAL OPERATIONAL AMPLIFIER?????. Oct 5, 2020 · You can replace NJM2068 by LM4562. 2k [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. My dj mixer uses 2068d and although its not a great mixer I like the way the music feels and general vibe it has. You can also use the LM4562 which has slightly less noise but is an expensive opamp compared to the others suggested. 1 4/19 2016-07-13 ACAV Jan 12, 2024 · NJM5532 vs NJM2068, Looking for opinions for replacing an NJM4558 The OPA2142 appears to have better specs, but the OPA2143 was designed specifically for audio Jul 9, 2008 · Burr Brown OPA 2143 vs NJM2068 I have a Primare CD 21 that needs repair. aren't quite as fussy, but will still benefit from the same areas being correctly implemented Feb 12, 2021 · That's for starters. Mar 5, 2007 · I got curious today and decided to try and see how our old friends compared against the latest and greatest (?) chip. I use an X-Fi Titanium THD+N vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS RL = 10kΩ 20157266 THD+N vs Frequency VCC = 17V, VEE = –17V, VOUT = 3VRMS RL = 10kΩ 20157268 IMD vs Output Voltage VCC = 15V, VEE = –15V RL = 2kΩ 201572e6 IMD vs Output Voltage VCC = 12V, VEE = –12V RL = 2kΩ 201572e5 IMD vs Output Voltage VCC = 2. I wish to hear something about OPA1612 vs Aug 28, 2023 · 2. Because it is the successor op-amp, I hope that it could be a good "drop in replacement". NJM4580 requires more care, usually a high-current not-too-fast FET opamp is suitable. I replaced those in my motu 828 with LM4562, sound improved remarkably. 28*18) which your 176928Hz Anything over that and the waveform will tend to distort to a triangular shape. 5 and 6 May 16, 2009 · I have an echo audiofire 12, its filled with 2068 opamps. Mar 4, 2012 · 備忘録的にオペアンプの音質比較を載せておきます。('12 3/14補記)電圧は±15vで駆動。(電圧で音質が変わる石がある。特にOPA系)僕は40kHz位まで… The NJM2068 is a high performance, low noise dual operational amplifier. pdf 22. The chips were put into the active filter at the output of a DAC ( Zhaolu V2. You run the risk of instability using a faster op amp, but a modern surface mount PCB is likely to work well, and the LM4562 has a generous phase margin, and it'll tolerate load capacitance pretty well. They sounded pretty damn good (as in more or less indistinguishable from the others) in that scenario (both 2. Nov 5, 2017 · さて、次はNJM2068を試してみようと思います。 以前試した時は、lme49720naとよく似た感触だったので楽しみです。 ・・・・・・・・ ということで、α5000mでNJM2068を聴いてみました。 これも良いです。 予想通り高音は素直に伸びますし、 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 Jul 9, 2008 · Burr Brown OPA 2143 vs NJM2068 I have a Primare CD 21 that needs repair. Штатное питание +/-6 В. Merch Rep the community and hobby you love so much. In my subjective listening impression, the op-amps rank as follows: 1. (Since 2068 is a dual and 2x34 is 68 I wonder if the NJM2068 is intended to be a souped up dual 5534?) i built six of these O2 for my recording studio setup in order to give each musician their own seperate listening. Treble Fully warm and back. I doubt anyone would ever be able to hear the difference between any of these in a blind test. NE5532. Feb 23, 2023 · Use a NJM2068 if you want a cheap easy upgrade that won't be fussy. How to choose between lm4562 vs ne5532. 1uF's. The NJM2068 is a high performance, low noise dual operational amplifier. 5 ). This amplifier features popular pin-out, superior noise performance, and superior total Electrical Characteristics for the LM4562 (Note 1) The following specifications apply for the circuit shown in Figure X. NAD, Tascam, Fostex used them. com ). Apr 21, 2008 · 【追試】lm4562 vs lm6172. May 17, 2017 · Подскажите на что заменить оу jrc 2068 без изменения обвязки, для качества звука в фильтрах ? You can improve S/N ratio by using NJM2068 opamps. They are "better' ones you can try - LM4562 is always a good candidate just check the supply voltage fist. Nov 5, 2017 · さて、次はNJM2068を試してみようと思います。 以前試した時は、lme49720naとよく似た感触だったので楽しみです。 ・・・・・・・・ ということで、α5000mでNJM2068を聴いてみました。 これも良いです。 予想通り高音は素直に伸びますし、 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 Oct 2, 2016 · According to a specs. Typically, low power Op Amps have dismal noise and THD specs. Oct 21, 2016 · I would like to swap from Op-Amp NJM4565 to NJM4580. Jul 9, 2008 · The world's largest high-end audio community. I opened up an orchestral mix that I had been working on with my other 1820m with LM4562 in it, and I found trying to mix via the 2068 a bit tricky. M5220 vs. 0004% NE5532P Ti NJM2068 JR LME49720 Ti OP249 ADI LM4562 Ti AD827 ADI 7. Jul 4, 2009 · I got the LM4562 Comparison LM4562 vs OPA2134 vs NJM2068 vs NJM4556 LM4562: Strong bass . But which would you consider for best audio performance, low noise, low thd, and wich sounds better? I will use it with +9V, -9V. If it is well implemented, non prone to oscillation, with high input impedance and within supply specs, it should work well. The second is the NJM2068. It's mentioned several time in this thread. Can the current NJM2068 replace it? Pin configuration is different, kinda. 5V RL = 2kΩ Jul 5, 2006 · LM4562 LM6171 LM6172 LM6181 LT1028 LT1056 OP27 OP275 OPA211/OPA2211 OPA2134 NJM2068 seems to be the same circuit as NJM4560 and 4580. Jan 12, 2024 · The sound of the NJM2068 is closer to the LM4562. The third is the NE5532, which is the most balanced and neutral. Does anybody have a techical reason why the LM833 is so used? I have it in my 1993 Philips CD473 (behind the TDA 1451 DAC) and in the more recent Denon 3805 (following PCM May 19, 2017 · An OPA1612 has slightly better specs than an LM4562---less noise and distortion, faster, and more output voltage swing. In my opinion NJM4558 and M5218 are just as good as TL072 or NE5532, but these are cheap chips to buy and try. There is a thread that compares several opamps in the CNC but I can't remember the name. Mar 18, 2015 · Has better output driving than NJM2068 but that should be of no concern when using a buffer. If you send me a conversation I can send you a copy. Bypass the power supply pins with some 0. I don't know about feedback caps as I have not traced out the circuit that E-MU used with the original NJM2068. Wide soundstage OPA2134: Strong bass . Оставьте в списке один из них. Had to do something with the anti-parallel diodes on the inputs. Again, I didn’t bother with the expensive OPA2227 or LM4562 as they just further blurred everything together with the residual of the analyzer. nice specs. Besides the NJM2068 to replace the TL072, what else would you try. These are readily available, little known, and are about 3dB quieter than an NE5532 (C3 will need to be reversed in polarity because the NJM2068 uses PNP input transistors). At 2. Page: 5 Pages. There is a 3 to 4 improvement in the typical slew rate for instance, always a weakness with the 741. So it wouldnd hurt to try The NJM2068 is slightly better in the midrange at 1/10th the cost of the OPA2134. Want to be on the safe side, because I read on this forum someone had problems with OPA2604 and newer ones, like the LM4562. Судя по всему, тяжёлый рецидив. There are two PCB models for this card, 8850, and 8852. Personally, I would get a ne5532, njm2068 or lm4562 for cheap and move on to other areas to improve. Feb 11, 2016 · That's right, the max frequency something like an opamp can pass undistorted (for a sine wave) is, F = Sr/(2pi * Vout peak) so that's 20E6 (6. With a 2K Rsource the OPA1612 and NJM2068 have similar noise signatures. Mar 29, 2003 · I modified a marantz pm62(technics su v6 modified clone) into the real technics preamp. *I compared NJM2068 NJM4580 LM833 uPC4570 . Every time. unlikely to be a Oct 30, 2022 · One of the problems of the 741 was its lack of specifications, and relatively high noise. The repair guy has stated the the final Burr Brown OP Amp in the series is shot and wants to replace it with a NJM 2068 which is also low noise. The LM4562 offers the most musical, refined sound, the NJM2068 is a close second, and the NE5532 provides a more neutral, analytical NJM2068 Ver. I have it saved as a document. I did it because of my OCD more than anything else. Narrow Soundstage NJM2068: Weak bass . Jul 9, 2008 · Burr Brown OPA 2143 vs NJM2068 I have a Primare CD 21 that needs repair. TL072 was VERY good !! Equal or better We would like to show you a description here but the site won’t allow us. The NJM/JRC 4556 is a very good output buffer able to drive headphones; it shouldn't be used in VAS, wellat least not inside the O2. Jul 4, 2009 · Muses 8920: The best one, why? because it's specs are very close from the Muses 01 and it costs only 17€ instead of 75! It's pratically the same as the LME 49720 but the sound rendering is more like what tube amplifiers provides (J-FET technology) so that makes it a bit better than the LME 49720. For the 4565, the LM4562 seems like it might be a good Jul 9, 2008 · Burr Brown OPA 2143 vs NJM2068 I have a Primare CD 21 that needs repair. Warm Mids (Deep and Full) . Download. Natural Mids (Thin and unchanged) . The NE5532 is also capable, giving a clean, neutral sound. LM4562 Units Symbol Parameter Conditions Typical(3) Limit(4) (Limits) AV = 1, VOUT = 3Vrms Jul 20, 2004 · Swapping them and the output resistors make the TS9 live up to the 808 specs - but keep in mind that its diodes that cause the clipping in the TS pedals. It has significantly better noise performance than even the NE5532, LM4562 and far better than the OPA2134. Andrea: Member. Aug 23, 2017 · Those are somewhat conflicting requirements. This amplifier features popular pin-out, superior noise performance, and superior total harmonic distortion. No such problem via the OPA1656. Maratnz likes to drive 5532s with the full swing of +/-22V which is too much for most of the stock replacements. If you want to go for something that might genuinely give a different type of subjective quality then you need to look at the OPA2604 (obtained from authorised distributors only 我只知道 以前有个运放扩流的耳放 不同运放 中点漂移唔同 试过ti的5532漂移最大 其它高价运放没有 2132的漂移小一点 The group of three (LM4562, NE5534A and NJM2068) will perform well when two are used in parallel. A. 5X gain the NJM2068 matches everything else. May 18, 2016 · Original specs call for: U1 - NJM2068D U3, U4 - NJM4556AD Now I know NwAvGuy tested many of these for noise, current draw, and noise, so I started there with the following chips: OPA2134; OPA2228; NE5532; I am trying these chips in different combos. While with the NJM2068 I always had the feeling that I had to crank up the volume knob it sounded like the headphone amp had much more power with the LME49720. . Aug 4, 2013 · LM4562 sounds much more detailed including middle and treble sections too. Но возможно есть и что-то более сюда NJM2068 Ver. Bluebook The right price. This amplifier also features guaranteed noise performance with substantially higher gain-bandwidth product and slew rate, which far exceeds that of the 4558 type Key Features and Specifications TPA3251/5 Enhanced PFFB design <0. I tried a lot of combinations, too many to recall. File Size: 242Kbytes. The current NJM2068 doesn't have the extra V+ on Pin 1, the rest is the same but moved up a pin. oal skasb truva xjbntm nwog iiunqgx fskmw vudqd ebxzw ikzr