Lm4562 op amp review. With LM4562, the noise was -74.

• Lm4562 op amp review Joined Dec 12, 2017 Messages 4,600 Likes 3,206 Location Tarragona (Spain) I am open to suggestions to other op amps or I would love to hear any experiences any of you guys have had in testing out other op amps in the O2 amp. Furthermore, In this article, I’m checking out the Sparkos SS3602 Dual Discrete Op-Amp. Across different musical styles, Power Amp: TI TPA3255 Op-Amp: TI NE5532 x2 Power Supply: 32V/5A, There are many reviews of audio hardware and expert members to help answer your questions. I've just placed a couple of NE5532's into my DIY ESP P06 and they sound fine. I tested from its left & right channels (not using subwoofers). NO: ZL3747. 2. The ZXR sound-card is very high fidelity using this op-amp and DC modification setup, but now after working with Burson Audio, I have a new opinion of what high 3. Op-amp chip: NE5532P*2 Replaceable op-amp chips: OPA2604, OPA2134, LM4562, JRC5532, etc. Quote from: Kleinstein on February 12, 2021, 10:47:33 am. The LM4562 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully. 1 k : 3. With LM4562, the noise was -74. . of course how the music goes out of the speakers in terms of imaging and separation, it’s crazy how good this amp sounds for the price. Focal Clear Pro, Hifiman HE-560, Hifiman HE1000 V2, Westone W80, Sennheiser IE600 Headamp GS-1 + iFi iUSB 3. This is my LM4562 based preamplifier. The LM4562 was the first op amp to unseat the NE5532 as Doug Self’s overall benchmark. Supply voltage is 19V/4. , Ltd. for any sound characteristics noticeable for each op-amp. English. The NE5532 op-amp boasts several notable features, including: Low noise: The NE5532 has a very low noise figure, which makes it suitable for audio applications where signal clarity is essential. Over this supply range the LM4562’s input circuitry maintains ex-cellent common-mode and power supply rejection, as well as Objective Guide to Op-Amp Rolling - Part 1 Regards; Leo . RayDunzl Grand Contributor. 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. , in the cases of the LME49720 (= LM4562) and some of the other opamps, you're not seeing the performance of the opamp. opa2134, lm4562, etc) I found a spec called "supply voltage MAX". The fact that I could find at least 2 op amps from ADI that easily worked shows how easy it would be to try different ones. Just did an A/B with 2 opamp buffers on my Hypex NC500 monoblocks, which I normally use with no buffer, as the dac has enough gain to drive the NC500 modules direct. LM4562NA/NOPB is a dual high-performance, high-fidelity audio operational amplifier. I know that for some of the reviews for their discrete op amp versions, break-in yielded somewhat better results. maty Major Contributor. However, there are several op amps that are often considered for audio application like NE5532, OPA2134, LM4562 and more. We do not know your sepcific circuit, in this case the Juli@, is working with the OP without a problem or not. My favorite op-amps were LM4562, OPA2228, and OPA2107. 1mV) give the amplifier excellent operational amplifier DC performance. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. The instruments were still clear. with LM4562 opamps (reduces noise and distortion slightly compared to original NE5532), powered from Mean Well the A07's opamps are socketed. There were distinct differences in the perceived sound quality with the changing of each OP There are many reviews of audio hardware and expert members to help answer your questions. 00003 percent"(EEtimes): National Semiconductor won the Product of the Year Award for its LM4562 dual audio op amp. Interestingly enough on the Burr-Brown documentation for this particular dual op amp, claims are made for 'superior sound quality', due to the use of a true FET input stage in the OPA2134. As Zacci already said, a opa1611 is probably a safe and very good change. Cek Review Produk Terlengkap Boutique op amp or ultra fast modern op amp sound just different from 5532, but not always better. Some are affordable (the LM4562 which runs less than $1), Burson creates devices that plug into op-amp sockets that use a fully discrete set of diodes, resistors, etc. 007% Burson Audio Opamp Review Some have voltage requirements that make them only compatible in certain designs, etc. LM4562 "High-fidelity audio op amp drops distortion rate to 0. Aiyima themselves recommends lm4562 as an upgrade and you can buy the amplifier from them with lm4562 , for an additional cost. Part 1. While you are there, you can wire a CRD across the output for biasing the output stage in class A, but you can't use the CRD pads on the UCD as the LM4562 needs the Feature: The LM4562: a new super-low-distortion op-amp by Mauro Grassi ; Project: Adaptive Turbo Timer by John Clarke ; Project: Subwoofer Controller by Jim Rowe ; Project: Build A 6-Digit Nixie Clock, Pt. EEVblog Electronics Community Forum. Incl. This is a review and detailed measurements of the Aiyima A07 Max stereo class D amplifier. LM4562 is one of the choices. The LM4562 combines extremely low voltage noise density (2. Nonetheless, I already like it and I think its a better sound than when the 1656s are in the soundstage preamp. Search for: LM4562 Datasheet (PDF) Weight: 0. mcdn; Nov 6, 2024; Amplifiers, Phono preamp, and Analog Audio Review; 2 I will listen to a playlist of Flac files with a minimum 44. Worry-Free The LM4562 is an excellent op amp for audio applications and is one of the more reasonably priced. I am not an expert but as far as the circuit goes it largely depends what is the opamp doing - inverting amp, non-inverting, buffer etc. Been there, done that, and frankly any non-Jfet input op amp is going to give you grief. By combining state-of-the-art technology and modern design, the LM4562 offers superior audio signal amplification for outstanding audio performance. 00003%) to easily satisfy the most demanding audio applications. 1 KHz and make note of the above features of transparency, etc. Adding cap is one of the way to prevent OP being go crazy. The DAC chip is powered by, you guess it, an LM4562 op amp. Date Features. In a classical op amp based power supply, to get a stable voltage without ripple usually zener diode is used for voltage reference. $5. The new op amp presents none of the issues I found with the LM833, which clearly presented audible signal degradation for which the only solution I found was to lower the closed loop gain by about 7dB by changing the ground resistor in the feedback circuit from 390 ohm to 1K ohm. The noise with OPA2134 is in fact lower than with NE5532 and LM4562. There is a "rollable" op amp in the power supply but this is not in the signal path and rolling it will do nothing. IC LMC6484AIN Quad CMOS Op-amp DIP14. The LM4562's outstanding CMRR (120dB), PSRR (120dB), and VOS (0. We recently communicated with lead designer Matsuro Koterasawa and asked him about the development of the part. The MUSES01 looks to be comparable in specifications to the OPA2604, but at many times the price. 20k is a better target, since at normal volume levels the output impedance of the volume pot is down under 1k which balances the inverting op amp input reasonably well under audio frequencies anyway. Last edited: May 23, 2018. Opa 1612 I used the tunemethod by ear ( listening after the clearest pitch of the tunes when following each instrument playing ) listening to the same music for about 20 minutes with each amplifier before changing the amplifier. 002% Signal-to-noise ratio: 90dB Frequency response: bass ±12dB; treble±10dB Input sensitivity: 0. Initial impression is very satisfactory, the background is dead quiet. Joined 2010. Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. There are many reviews of audio hardware and expert members to help answer your questions. Current - Supply (Main IC) Voltage - Supply, Single/Dual (±) There's less "boom" in mid-bass and bass frequencies, making for a more balanced sound. dreamth. All of these amps can get higher volume than my SMSL AO100 amp, which I like for the dining room (remote and integrated bluetooth) where I don't need high volume levels at all. Jump to content Jump to navigation 12 000 products. 150. It could go crazy when other parts of the circuit is not designed for it. LM4562 JRC Muses02, 4580D, NJM4556AD Texas Instruments OPA2604, OPA2134PA, NE5532 Ray For this review I used two budget op-amps the OPA0627AU which can be Details of the circuit matter a lot for op amp "rolling". Not here. Audio performance levels have risen dramatically in the last 20 years. Anyone know whether the LM4562-LME49710-LME49860 series are PNP input or NPN . Evaluation board. No ES9311 (which is usually used as power supply chip in ESS designs) is used. However, nothing can neglect the fact that different opamps behaved very differently in the same setup and that sensitivity of LM4562 to EM field was and is highest. High slew rate: It has a high slew rate, enabling it to respond quickly to rapid changes in input signals. Opa 134 is a very good sounding FET OP and might also be an option. The possibility to change the op-amps very easily, so you can have your personal signature with your own amplifier. sensibleaudio. Distortion: 0. Usually to do a linear power supply a BJT is used with the op amp to supply more current. But I can still easily hook up the buffer b Different Op-amps function best in different circuit configurations. 1 just in case that op-amp was better as reported): 1- Syba (sliver), model: SD-DAC63118, Op-Amp TI-LM4562 (better in theory) More info on the variations of this thing from what I could gather (I got #1 just in case that op-amp was better as reported): #1 - Syba (sliver), model: SD-DAC63118, Op-Amp TI-LM4562 (better in theory) [IMG] Op-Amp rolling with Fosi V3 Mono. Once that amp is out of the way, you don't really have a need for op amps with input noise below 5 nV/rtHz. Reviews. The sound is smoother/refined and more listenable. 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 is an excellent op amp for audio applications and is one of the more reasonably priced. If In principle all variants should sound transparent, but you have the option to change the Audiophonics OP amp if you want. 5mm AUX OUT as output connect to next amplifier without volume control THD：0. Originals were JRC5532DD, and I've got OPA2604, OP275, and LM4562's to try. Last there's that 100kohm volume pot. ti. Sadly, the headphone amplifier op-amp was sanded on top and its lettering was completely wiped clean, can’t tell exactly what op-amp is that. I have tried muse02, muse 8920 didnt feel they were worth the hype or price. Also here a little more information Wikipedia: "The NE5532, also sold as SA5532, SE5532 and NG5532 (commonly called just 5532) is a dual monolithic, bipolar, internally compensated operational amplifier (op amp) for audio applications introduced by Signetics in 1979. Replaceable Op-Amp Chips:OPA2604AP, OPA2134, MUSEO1/02/03, LME49720NA, LM4562, AD827AQ, etc AUX OUT: active nsubwoofer or power amplifier 3. Skip to Main Content (800) 346-6873 The LM4562's outstanding CMRR (120dB), PSRR (120dB), and VOS (0. The So, as bipolar duals went for this crude test, from best to worst, LM833, NJM2068, ST's MC33078, OP275, On Semi NE5532, OPA2227, TI/Signetics NE5532, and a distant last place LM4562. Its distortion is very small, with only 0. I've used the Ziku HD X10, only one op amp socked, with IKKO OH1 iems, not a tecnical test, only sound perceived differences. SandyK P. The SS3602 is a dual op-amp, the SS3601 a single, DIP8 form factor. 2023-01-20 12:57 am #7 2023-01-20 12:57 am #7 Hi Hugh and All Just tinkering around again and finding out a bit more about one of my favorite products, the LM 4562 op amp; an op amp that was actually, horror of horrors, designed not just using theory, but by listening (heaven forbid). Recent king in the audiophile OPAMP arena seems to be National Semiconductor LM4562. NO: ZL3484. NE5532, e. Save $3. 1uF cap close to the NE5532. especially of the LM4562/LME497XY family i. com and all are unity gain Dual Audio Op-Amp, GBW 55MHz, SR 20V/us, Voff 0. 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. Thread starter pma; Start date Jan 7, 2021; The NE5532 is a very old op amp. IMO, it is not worth spending more money on upgrades to this amp. Capacitive loads greater than 100pF must be The op-amp rolling crowd may get into trouble when rolling it in a circuit with a non suited PCB design/decoupling. Click here to have your audio equipment measured for free! Forums. Review of LM4562 IC 1. VAT Excl. Over this supply range the LM4562’s input circuitry maintains ex-cellent common-mode and power supply rejection, as well as I wanted to know if op-amp rolling is a thing. OPA2134 has been a "standard" replacement for most of the "old school" opamps. Discover more. Noise free and transparent sound - this is what I can say after first tests. Current - Output / Channel. You're seeing the performance of your instrumentation. The amp comes fitted as standard with NE5532s but the op-amps are socketed so you’re free to engage in ‘rolling’ if that’s your thing. Op Amp Evaluation Boards. The LM4562 has a wide supply range of ±2. So in this post, I will review some op-amp that more suitable in Dual Op Amp Configuration: The LM4562 comes in a dual op amp configuration, which provides two independent op amps within a single IC package. Replies 34 Views 12K. I dug up the circuit National/TI used for the Thank you AnlalogSteph for that information. LM4562 = LME49720 dual and LME49710 single There are many reviews of audio hardware and expert members to help answer your questions. Their product information lists a number of compatible op-amps, including OPA2604AP, OPA2134, MUSEO1/02/03, LME49720NA, LM4562 and AD827AQ. Sound Blaster AE-9 OP-AMP Modding . I was totally happy with the Matrix M-Stage’s performance, and it has officially taken the spot of my new favorite entry level amp. Interesting. More info on the variations of this thing from what I could gather (I got no. Other op amps already on my list to try: AD8610; LM4562; AD8512; OPA2209; And for reference, I am testing this with: However, there are several op amps that are often considered for audio application like NE5532, OPA2134, LM4562 and more. I would however say that the sound differences are bigger than what those measurements show, with advantage lm4562. 84vRms Speaker impedance: 4-8Ω Output power: 300W*2/4 Ohm Input mode: Bluetooth, RCA The AD8397 is a great general purpose op-amp for many applications and, in my experience and opinion, worth taking the time and effort to use. I've used the LM4562 as a line stage amplifier The LM4562 is a high speed op amp with excellent phase margin and stability. I was using low-impedance headphones at the time and had to add 0. I'm still (perhaps irrationally) fond of the OPA604, maybe because some equipment I really like used 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 Today I changed one of the op amp chips in one of my remaining DIY ESP P06's from an LM833 to an LM4562 making both op amp chips LM4562's. At Digi-Key, the DIP package is USD5. Probably better at lower voltages. Nordics and EU shipping available. I’m using an Objective 2 (O2) amplifier (assembled by me in kit form from JDS Hypex UcD180HG HxR module analysis and review After buying and testing AIYIMA A07 LM4562 buffer OpAmp ; HxR12 ready ; As the amp has only one signal connector, no further PCB ground current is created except for that through the transformer stray capacitance and this current is low enough to create any issues. Download View video with transcript Video. 5V to ±17V. ad8620 is for sure a nice chip. Review Index. Ada Gratis Ongkir, Promo COD, & Cashback. Skip to Main Content (800) 346-6873. Mouser offers inventory, pricing, Audio Amplifiers 2-channel, 55-MHz, high-fidelity, high performance audio op amp 8-SOIC -40 to 85 LM4562MAX/NOPB; Texas Instruments; 1: $6. e. 1mV) give the amplifier excellent operational am-plifier DC performance. 7 dB re 150W/4ohm. Yes, the LM4562 can be used to replace other op-amps in many applications, provided the power supply and pin configuration align. 01 oz: More info on the variations of this thing from what I could gather (I got #1 just in case that op-amp was better as reported): #1 - Syba (sliver), model: SD-DAC63118, Op-Amp TI-LM4562 (better in theory) These are probably among the two highest of the best sounding dual opamps around today. If you like the sound of it with 4367s that is a very good recommendation. After my last review of the SS V5 Opamps, Burson has sent over some more SS (Supreme Sound) discreet op-amps for my review. Even at the 77W output level the measured distortion (ASR review) is quite low. Though the diff when using it further down the chain in the amp is lesser than in a preamp. Once you start spending money upgrading it, that value proposition disappears quickly. August 18, 2011. Please note slightly lower noise and also better rejection of mains multiples. com) – Discrete Op-amp; The heart of this review may be the biggest stumbling block for some readers. 2 by David Whitby ; Review: Rigol DS5062MA Digital Storage Oscilloscope by Burson Audio V6 ($85 USD at Amazon. Anybody still using the humble NE5532 in their By swapping the stock NE5532 op-amps, you can tailor the amplifier to your preference. I tested a few in both units and the best combination to my ears at least is the opa2604 in the output AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option. mcdn; Nov 6, 2024; Amplifiers, Phono preamp, and Analog Audio Review; 2. Thanks in Buggle2 Riaa board. It's a BJT input op-amp with a high bias current of 72nA, compared to, 65pA typical, 20nA worst case, It seems paying a few more dollars for LM4562 op amp instead of NE5532 doesn't really make much sense. Again the LME49710 performed poorly. Opa 1642 4. OP . In other word, the OP is very hard to use. the design of this brand new Fosi amplifier. It combines extremely low voltage noise density (2. Slew rate over 6 v/usec can get you into trouble with oscillation, which I found when changing hissy 4558 for $. ivanlukic. In other words, the distortion of this op amp is almost negligible. Reactions: LesterNZ, Xulonn, kevinh and 2 others. The unit does not get overly hot One other option is the bipolar LME49710, the single version of lm4562. only the LM3886 and three transistors. It is almost perfect and this is the explanation of my very different listening impression from this amp, with CNO-T25 and JBL Control1 Pro. 84vRms Speaker impedance: 4-8Ω Output power: 300W*2/4 Ohm Input mode: Bluetooth, RCA You talked about the LM4562 op-amp, but then your schematics use the LME49710 op-amp. 38 ea quiet 33078. However a pair of the AD797BRZ is slightly better, just slightly. Reply reply review my part list? Because this is a single OP AMP, adapter PCB is necessary: L C Audio Technology/AD825 Maybe this is true, maybe not. However, both the LM4562 and LME 49720HA are very fussy about their power supplies for best results. It would be easier to recommend something if you tell us what you're after, and what you're missing in your DAP. With the 32v and 36v power bricks, none of these amps get very warm to the touch at all. A Free & Open Forum For Electronics LM4562 achieves 10nA typical and still has less voltage noise. The preamplifier uses a high pass There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for data from Texas instruments and Wikipedia regarding distortion levels The LME49860 is great, something between the thickness of the LM4562 and the cold neutrality of the LME49720. So a 5534 is actually quieter than an AD797 or an LM4562 when used in a phono amp - but of course distortion is not as low. I will get it tomorrow. Mfr Part # Quantity Available. Could I pick them out in blind testing? Nope, but I liked the sound the most when I put 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. Thanks in Like Majkel said, do some searching. Price. They ended up costing $5 each from Mouser. 50. So it's easy for an Op-amp roller to install a chip in a circuit that it's not happy in! So if you don't have an O-scope to check for ringing or even radio frequency oscillations, don't roll Op-amps. The op amp also serve for bias input for LPF op amp. I From the ASR review I know that there is a known issue with the amp (or power supply) shutting down at around 77 watts. How does the LM4562 compare to other op-amps in its class? In terms of audio performance, the LM4562 often outperforms other op-amps, thanks to its exceptional specifications. Objective Reviews & Commentary - An Engineer's Perspective. Where can I buy the LM4562? It is recommended to use LM4562, which has a wide operating voltage range and ultra-low distortion. Available for delivery. 1 just in case that op-amp was better as reported): 1- Syba (sliver), model: SD-DAC63118, Op-Amp TI-LM4562 (better in theory) LM4562MAX/NOPB Texas Instruments Audio Amplifiers 2-channel, 55-MHz, high-fidelity, high performance audio op amp 8-SOIC -40 to 85 datasheet, inventory, & pricing. VintageFlanker's Review Index. Audio, Audio, Audio! So far enjoying mine. VAT. Also, it's 3 months late; sorry to the folks at Burson Audio 🙁). LM747 Dual Op-amp Linear IC. LM4562 has a wide supply range of ±2. Slew Rate. Consequently, it has stayed in my amp ever since. 7A. Anybody still using the humble NE5532 in their Also in that review though, he replaced the stock op-amps with the LM4562 and those measurements got much better. In all honesty I have been using the LM4562 a lot and never heard anything nasty but then again I do not 'measure' as deep Beli LM4562NA dual op-amp nos ic lm4562 Terbaru Harga Murah di Shopee. Audio op amps LM4562 — 2-channel, 55-MHz, high-fidelity, high performance audio op amp. Operational amplifiers are specialised amplifiers that have high input impedance, low output March just uses the bone stock built in LM4562 IC op-amp based buffer which is mediocre at best. LM747 Dual Op-amp Linear IC details. , was founded in 2013 in Shenzhen China. The table below details the superior performance of the Sparkos Labs discrete op amps to an array of Review of Burson Audio's V5 series discrete op-amps. Are you just interested in trying something different? Click to expand With LM4562, the noise was -74. Quick dispatch. If you have a high impedance on the input, it can be worth looking at a FET input op-amp due to lower current noise, thoughalthough it's not always the case that there will be enough noise to make SNR a There are many reviews of audio hardware and expert members to help answer your questions. It doesn't say or show in the datasheets. SoundOfSound While you can drop other op amp types into a circuit as described in this thread ,without the circuit being optimized for the other types they may not perform up to their potential which at best I have interested in low ESR Electrolytic Capacitors to power the Opa1612. Add to list. Other op amps already on my list to try: AD8610; LM4562; AD8512; OPA2209; And for reference, I am testing this with: LM4562 www. Last edited: 2021-08-06 9:31 pm. com SNAS326I – AUGUST 2006– REVISED JANUARY 2010 LM4562 Dual High-Performance,High-FidelityAudio Operational Amplifier Check for Samples: LM4562 1FEATURES DESCRIPTION 2• Easily Drives 600ΩLoads The LM4562 is part of the ultra-low distortion, low-• Optimized for Superior Audio Signal Fidelity Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. 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. On more "refined" jazz tracks and those featuring female vocals and acoustic instruments, the soundstage and imaging (again on this setup), separation were just as good as those of the other amps. The JFET TL072 and OPA2134 didn't react. Which one is it? You did not upload either the symbol or the SPICE model for the LME49710, and that means we can not try your schematic to see why things don't work the way you want them to. I recently replaced the LM833 op amp in my phono pre amp with an LM4562. Other vendors I've seen have been quite a bit higher. I do plan to test the Topping D10 with some op-amps members have donated. I tried personally opa2111 and opa2107 with great success. Might be interesting to do op-amp comparisons in the future on various products (the FX Audio DAC-X6 is also swappable, for Even the coveted OPA627 monolithic op amp, with a price tag of over 25 dollars, has 30dB less gain and around twice the noise of these discrete op amps. I bought a LM4562. Aug 31 Fosi M03 / Aiyima 3001 / Nobsound G2 Pro mono sub amp review. It really is a very fine The LPF is not only made by the combination of the resistors and capacitor network, but the op-amp become the major factor to the sound improvement. Check stock and pricing, view product specifications, and order online. The DAC output stage uses a single very linear sounding LM4562 dual op-amp by Texas Instruments. Español LM4562 LM4562 Shutdown: No Shutdown No Shutdown it’s the same op amp. You talked about the LM4562 op-amp, but then your schematics use the LME49710 op-amp. Baldin. Could I pick them out in blind testing? Nope, but I liked the sound the most when I put LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. Member. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. I recently bought a Douk U3 Mini headphone amp from Amazon, was only $30 with decent reviews so figured i'd give it a shot, My trusty 15 yr old Go-Vibe v4 The LM4562 has a lower offset voltage (+/-0. Amp tweaking is unlikely to improve matters. I tried all of what you mentioned here, LT1357, 627AP, AD797AN and more which I don't remember. I am starting with our setup mentioned previously because I know this configuration on my sound card the best (most hours) and I know it is free of static or hum. Package. Are you just interested in trying something different? Reactions: LeifB60. Skip to content. 7nV/√Hz) with low THD+N This review has been posted for TI LM4562NA/NOPB Dual Operational Amplifier OPA DIP8 (Unit) Note : 5 / 5. Product Status. Sampling of the music I listened to to test the amp: Mixed Test Tracks on Details of the circuit matter a lot for op amp "rolling". If you don't know or don't care, just stick with the default and save the money. LM4562 is a high-fidelity dual op amp introduced by National Semiconductor Corporation in recent years. G'day all, I have a reasonably large collection of NOS and used but electrically ok op amps, all the way from TL072 to LM4562 and everything in between including NE5532's. (1. LM4562, opa1642, opa1656 without burning too much money on rolling opmaps. Fet inputs are great for guitars and MC phono, bipolar inputs are better for most general things. Industry-Standard Pinout: The LM4562 has a pinout that is The LM4562 is an excellent op amp for audio applications and is one of the more reasonably priced. 1mV, +/-2. In my opinion, even a 071 sounds better . Its based around the NE5532 OP chip . This PCB can be used for every dual op-amp. For old-time audio, that would be phono input or the tape deck head amps. 2023-01-20 12:57 am #7 2023-01-20 12:57 am #7 I am open to suggestions to other op amps or I would love to hear any experiences any of you guys have had in testing out other op amps in the O2 amp. Enter the Sparkos labs SS3602 discrete op amp modules . Series. 83 k : 100 : 150 : 22 nF//4. I am using the V3 and MAX amps with the supplied 5332 op-amps. I also changed op amp to LM4562 and testing pairing between Fx Audio tube preamp and ifi Itube1. For modern audio, that is the DAC I-V converter. 7nV/√ Hz) with vanishingly low THD+N (0. Now I'm in stock (1x NJM2068 input and 2x NJM4556 output) I don't know why I couldn't find a real review for these op amps, I think orange amp is not serious about marketing like burson they are too busy with their guitar amps, LM4562-+ LM4562 10pF + + INPUT OUTPUT 47 k : 150 : 3320: 909 : 26. LM4562MABD/NOPB — Dual High Performance, High Fidelity Audio Operational Amplifier (8 LM4562 Dual HiFi-Op-Amp 55MHz 20V/us DIP8 A Curiosity full of Tubes and Compromises. Part # LM4562MAX/NOPB. By most standards the LM4562 is a superior op-amp to the NE5532. Not long after that, Burson Audio asked me to review their Burson SS V6 Vivid op-amps (so this is a semi-sponsored review. Also had OPA2132 and AD823. No complaints here. When looking into recommended op-amps (e. Account Closed. Channels per IC. It gets complicated If you find a review, it could be for an OP275 buffer (they changed the build spec to LM4562 just 2 days ago). dk/ 2021-07-30 3:38 pm (Normally one would probably point to LM4562 as being the best compromise, but I think the Quiescent Current of 10mA is very high) 42. So I changed the standard NE5532 with LM4562 in my Aiyima A07. If The LM4562 goes even further than being neutral, it makes music grey which I don't like. 9dBV (24kHz), which would make S/N 87. 1K. I had also read a lot of reviews calling out that the discrete opamps have more noise due to the design than tightly packed single From the ASR review I know that there is a known issue with the amp (or power supply) shutting down at around 77 watts. 67; 7,170 In Stock; 20,000 Expected 10/24/2024; Mfr. - LM4562 - Burson What do you think Cheers . Upgrade op amps vs new amp Review/Discussion I upgraded to the LM4562 Op Amps on my A07 and it made a huge difference in the overall sound detail and bass control. When you take a real-world op-amp out of a circuit designed to get the most from that op-amp and put in an op-amp that is only optimal with a different circuit design, The ones I subbed were LM4562's, Since the feedback circuitry on the board around the op-amp is usually involved in these processes, it is not possible for an op-amp to address 100% of the changes needed to prevent these failings. 00 SEK * LM4562MA SO-8 dual op-amp hifi original brand Dual High Performance, High Fidelity Audio Operational Amplifier The LM4562 is part of the available from Electrokit. I always think Signetics 5532 is an op amp of Telefunken 12AX7, a golden standard. 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. We all disagree when it comes to the sound of opamps - almost, so you should read reviews from several members. 95. Current - Supply (Main IC) Voltage - Supply, Single/Dual (±) G'day all, I have a reasonably large collection of NOS and used but electrically ok op amps, all the way from TL072 to LM4562 and everything in between including NE5532's. At first I thought it was due to my speakers, but after I have tested with many bookshelf speakers, but the BASS is not punchy (shake LM4562MA/NOPB Texas Instruments Audio Amplifiers DUAL HI PERF,HI FI AUDIO OP AMP datasheet, inventory, & pricing. near their maximum of 24 volts, they're not very much fun. They have, (Aside: I knew that op-amp swapping was a bit of an audiophool thing - but by God there's a lot of wankery about it out there!) In no way was the amp sounding strained. Hello together, i want to put one of the mentioned OP Amps in my amp. Español $ USD LM4562 Shutdown: No Shutdown No Shutdown SR - Slew Rate: The double-sided PCB with groundplane was produced just after these measurements and it significantly reduced the spikes, though not removed completely in case of LM4562. The need. This is my mini-review of Burson Audio Supreme Sound V5i op amp. I dont agree that 5534 is a good sounding Op amp. Although the amplifier can output more power with a different PSU, this is one thing Fosi Audio should be clearer about. The last audio op amps were designed over 20 years ago. Capacitors: the use of Japan's ruby CBB coupling capacitors Distortion:≤0. Another variable might be the buffer gain which you can reset with jumpers. It also requires op amps that can operate comfortably at +/- 12 volts (24 volts total). Because I'm not experiencing the shutdown, I am confident that at the 50% volume knob setting, the amp is not even driving 77W LM4562 is a high-fidelity dual op amp introduced by National Semiconductor Corporation in recent years. and do you think its worth while changing it out some something so called 'better' ? I have been Texas Instruments LM4562 Series Audio Amplifiers are available at Mouser Electronics. That said, the supposed advantages of op amp rolling have been widely debated for years and I thought the power supply advice seemed logical and was pretty universal, both on audio (expert) discussions and in buyer (laymen) reviews. Capacitive loads up to 100pF will cause little change in the phase characteristics of the amplifiers and are therefore allowable. LM4562 may be slightly better, but the difference is not audible. A strong recommendation on YouTube for Sparkos, and some good reviews. I double-checked the orientation to make sure the op amps were installed properly. It measures quite a bit better than the opa2134 in a variety of areas and has the same pin configuration, which means they are directly swappable. The whole value proposition of this amp is that it is a pretty cheap amp with low distortion for its price range. If you would like to alter the tone of the amp, do so with DSP such as EQ. There was only one 0. I felt this a better and more useful comparison than comparing to standard opamps such as the NE5532 or LM4562. LM4562 Texas Instruments Evaluation Boards parts available at DigiKey. Gear Used: HP Laptop > Utha > Grado SR60e Wood / MrSpeakers Aeon it comes with a Chinese 12AU7 tube and LM4562 op-amps, the tube would be the first thing to upgrade as the LM4562 op-amps are good. Its I have a 'Little Bear B4' portable tube amp and i love its characteristics. 01. 7mV max) than the OPA2134 (+/-2mV max), but the LM4562 also has a higher input bias current (72nA) than the OPS2134 (+/-100pA). Wide bandwidth: The op-amp operates over a wide The LM4562’s outstanding CMRR (120dB), PSRR (120dB), and V OS (0. Neutral means preserving color and timbre without altering it. Audio, Audio, Audio! I have provided comparison measurements for the LM4562 op-amp because of its integration into the Hypex NCx500 built in input buffer. Replaceable OP amp chips: SR3609SM, OPA2604, OPA2314, LM4562, JRC5532, OP275GSZ, OPA1612AIDR, etc. Description: The LM4562 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. 0 > IFi iDSD BL > iFi iTUBE 2 > iCan SE + Topping D50S > JDS Labs Atom + SONY NW-WM1A > 5QS / AM3D + IFI XDSD Gryphon + Gustard X16/H16, Edit:The Akitika circuitry has no rollable op amps. Any noise before the gain (including input noise of the gain amp itself) is amplified by the gain. My main attraction to them is a higher ripple current in the AC to “ power” the board onward as the opa1612 only requires low quiescent current of 3. 00003% total harmonic distortion and noise (THD+N). I was always curious about the Fosi V3 review Hello audio lovers OP249, AD827, RM4559, LM4562, LME49720HA Among the different musical styles, from classical, pop, rock to techno, the V3 shows no fatigue or distortion. D. Its better than the 5534. 5?+/-17V, -40?85°C LM4562NA/NOPB LM4562NA WOLM4562na кількість в упаковці: 5 шт : на замовлення 15 шт: термін постачання 28-31 дні LM4562 Op Amp Evaluation Board. I feel like the BASS is not enough for me. But I noticed an odd op-amp decoupling in the Aiyima. The input impedance is set to 47. Output offset voltage (even without DC blocking caps) - about 1-3mV. The LM4562 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. LIMITED SCOPE: The O2 headphone amp uses DIY-friendly DIP8 dual op amps. CAT. Rottmannash. Change Location. 50 a piece, but drops to 3. This level of customisation allows the user to easily modify the personality of the amplifier. Order & start development. I used R3,R9: 2k, R4,R10: 680R. Except opa1656 rest of opamps are available on rsdelivers. With the 30V regulated The LM4562 is a completely unsuitable replacement for a J-FET op-amp. If LM4562 reduces noise leaking into house wires significantly, I Reviews. Intentions are in a few days to roll the opa2134 in the A07 to see if they outperform the LM4562 but in all honesty the 2604/4562 op amp combo is something that already gives me the energy to get up and power up my system with with a Better audio op-amp than NJM2060 - Page 1. Moreover, I’ve been listening to the M-Stage with the Hifiman HE5LE, and though the Hifiman EF5 is a superb pairing with the HE5LE, somehow the solid state man inside me keeps on pluggin the HE5LE with the M-Stage amp. Available from Hi-Fi It currently has the NE5532 and can be changed/replaced with a Muses 01 or Muses 02 op amp. The flowing listening set began with OPA627 in all three op-amp sockets followed by the Burson V5 in the gain op-amp sockets and OPA627 in the combiner op-amp Hello together, i want to put one of the mentioned OP Amps in my amp. 97 $9. Try it out in your amp and see if you notice a difference. Nov 24, 2024. Thread starter pma; Start date Jan 7, Ordered some LM4562 op-amps today from Mouser just for the heck of it. It’s priced at $79 apiece. I owned an AIYIMA A03 amp. Over this supply range the LM4562’s input circuitry main-tains excellent common-mode and power supply rejection, as well as maintaining its low input The LM4562 goes even further than being neutral, it makes music grey which I don't like. $3. The "magic" of op-amps is their nearly infinite gain is combined with negative (corrective) feedback making raw op-amp performance much less critical. Combining advanced leading-edge process technology with The newer LM4562/LME49720 series improves on many parameters at once cf. Fosi M03 / Aiyima 3001 / Nobsound G2 Pro mono sub amp review. Also In the case of the Hypex amp the major source of EM noise is generated inside the box within a few cm of the OP amp from the switching psu and the amp switching. In a perfect world, if changing op-amps, we would look at the circuitry in the feedback mechanism and determine what changes were needed to it to address optimization LM4562 is a Dual High-Performance, High-Fidelity Audio Operational Amplifier IC. Obviously, not every op amp is a piece of junk like Burson’s but the trend for audiophile op amps (Muse is another popular one) imho is a form of snake oil. The SINAD became over 79db (A07 was 83db i believe) and the THD+N was ~0. Some negatives also - hyped up detail and flat sounding to some. The 12V trigger input. 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. pma Master Contributor. The Fosi Audio V3 uses the Texas Instruments TPA3255 amplifier chip; compared to previous models, it allows you to roll the two TI NE5532 op-amps, thus enabling you to alter the sound signature to your liking using your favourite op-amps. Audiophonics uses TI-LM4562 by default, which on paper has slightly lesser specs than the OPA1612 and OPA1656 which are used in the other custom implementations (EVAL, VTV, Neurochrome, BoXem etc). Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. Not that Aiyima doesn’t encourage you to take it apart. Fosi Audio V3 Review - The Best Amp Under $400? by cheapaudioman on Youtube; OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA. Amplifier Type. 00: In Stock: No Package: PDIP-14: Burson op-amps get a lot of love, but they are expensive. I have no way to know if any of the op amps - original or 2134 replacements - are genuine. The LM4562 is part of the ultra-low distortion, low-noise, high-slew-rate operational amplifier series optimized and fully specified for high-performance, LM4562NA Audio Operational Amplifier Op-Amp PDIP-14: Code: IC0255: Price: Rs. I. It seems paying a few more dollars for LM4562 op amp instead of NE5532 doesn't really make much sense. So I added 10uF close to the op-amp as practiced in the TPA3255evm . If the op-amp is connected straight to the DAC output, you better use a FET input op-amp. schematic However, there are several op amps that are often considered for audio application like NE5532, OPA2134, LM4562 and more. ” ———-As everyone can see - lm4562 measurements with a07 is better , but not much. I have used the AD8065 and AD8066, as well as the DIP8 LM4562 and the LME49720HA (metal can) The LME49720HA (LM4562HA) is indeed a little better sounding than the DIP8 LM4562, perhaps due to better thermal management. Douk Audio (also known as Nobsound), a subsidiary of Shenzhen Cavins Technology Co. 9 dB re 5W/4ohm and 102. The company motto is to “make Hi-Fi affordable” by following the rules of (in their words) “quality-oriented, customer-centered and constant innovation”. CMOS op amps are low voltage devices cascoded with high voltage ones to maximize the voltage noise performance of the op amp. The job of the amplifier should be to provide clean gain. 98. The preamplifier uses a high pass and low pass filter at the input to set the bandwidth, then an input buffer stage with parallel LM4562 op-amps. The flowing listening set began with OPA627 in all three op-amp sockets followed by the Burson V5 in the gain op-amp sockets and OPA627 in the combiner op-amp It gets complicated If you find a review, it could be for an OP275 buffer (they changed the build spec to LM4562 just 2 days ago). This ultra-low distortion, low noise, high slew op-amp series optimized and fully specified for high-performance, high-fidelity applications. Central Scrutinizer. Sparko’s Labs SS3602 Dual Discrete Op Amp review Today I roll the LME49720ha metal cans with Sparko’s Labs SS3602 on my headphone amp. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LM4562 audio operational amplifiers deliver superior audio signal amplification for outstanding audio On the op amp front, I ordered and have tried OPA2132, OPA2134, OPA2604, LM4562 and LME49720 op amps and preferred the OPA2132s. Output Type. ] Click to expand That is simply not true. Op-Amp: TI NE5532 I had read up a lot of blogs about discrete opamps, and I wanted to see what the fuss was about. As always I will try to write an honest review, this amp/DAC received over 100hrs of burn-in due to the tube. 3. mcdn; Nov 6, 2024; Amplifiers, Phono preamp, and Analog Audio Review; 2 Amir, if you want an lme49720 op-amp or two let me know and I will mail them to you. Get a modern LM4562 for dual opams and be done! Much better than any boutique opamp. LM4562NA/NOPB Texas Instruments Audio Amplifiers DUAL HI PERF,HI FI AUDIO OP AMP datasheet, inventory, & pricing. [. I then tried a bunch of single op-amps in a different board as I have some LME49710s. S. Just looking for some ideas re improving the op-amp signature. The specs of the op amp certainly don't justify the price. Or some other op amp, because their IC socket supports op amp rolling and you can order it with a different op amp if you prefer. The first test I propose is on a different NE5532 op amps in the same conditions. You could also save some money and purchase the standard edition of the UCD400 and swap out the OPA2143 opamp with a LM4562 op amp which is getting all the rave reviews at the moment. 2014-09-21 7:23 am #4 2014-09-21 7:23 am #4 Could it be that output stage in MUSE01/02 is in class A? From I don't much believe in op amp "sound"; the "sound" appears to be caused by factors besides the op amp itself. AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option. To be shure I've try 2 of every different 5532. This is an LM4562 buffer in a Hypex amp. Result: I couldn't notice a difference. Dual Op Amp Configuration: The LM4562 comes in a dual op amp configuration, which provides two independent op amps within a single IC package. 50Hz, but you have spurs at 2x, which as others have noted is typically power supply. This rules The new LM4562 op-amp from has received great reviews, but are pretty hard to come by, and relatively expensive in small quantities. Joined 2005. noise, bandwidth, THD and output current. Free shipping on all orders over $100. On the op amp front, I ordered and have tried OPA2132, OPA2134, OPA2604, LM4562 and LME49720 op amps and preferred the OPA2132s. This is the frequency response (output voltage) of AIYIMA A07 with my regular speaker, CNO-T25. Lm4562 3. 7 nF//500 pF 47 nF//33 nF LM4562 www. With the AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option. g. Since D30 is a single-ended only DAC, a single op-amp was enough for a decent output stage. Because I'm not experiencing the shutdown, I am confident that at the 50% volume knob setting, the amp is not even driving 77W More info on the variations of this thing from what I could gather (I got no. 30 $5. The LM4562 is a great OP-Amp however, I ran them in an Arc Audio PS8 DSP in It seems like the best performing audio op-amp that still comes in a DIP package is the LM4562, so that is what I plan on using for the op amps. At Digi-Key, the DIP package is It seems paying a few more dollars for LM4562 op amp instead of NE5532 doesn't really make much sense. I don't care about listening tests or something else, just want to use the technical better one in my amp. (800) 346-6873. I promptly got in touch with Andrew at Sparkos labs; a top guy that never got tired of answering all my silly questions and even went above the call of duty to help me out on another aspect of my amp that had nothing to do with any of his products or upgrades. Contact Mouser (USA) (800) 346-6873 | Feedback. IC LMC6484AIN Quad CMOS Op-amp DIP14 details. Will report back once I make any conclusions. I'd begin with the OPA2604, it's dedicated for the I/V stage and does it very well in my CD player. MUSES8820 is the best, IMHO. The LM4562 is unity gain stable. I will listen to a playlist of Flac files with a minimum 44. mcdn; Nov 6, 2024; Amplifiers, Phono preamp, and Analog Audio Review; 2 Discrete op-amps are an easy and affordable way to upgrade or customize your stereo or desktop system. specified for high-performance, high fidelity applications. 23% There are many reviews of audio hardware and expert members to help answer your questions. Disclaimer: This sample was provided by Sparkos Labs for an honest review. 6pA/rt Hz max). The LM4562 combines 8. The LM4562 is electrically identical to the LME49720 but cheaper ($3) and comes in Adding cap at opamp means, that op amp is very sensitive. Things like oscillation, instability, output load too low for a particular op amp, common mode distortion differences between op amps, or, in the case of JFET op amps, non linear input capacitance, although this, along with CM distortion would appear to Order LM4562MA SOIC8 op amps in our online store. Most, if not all, of these op-amps are rated in the 30s, even the stock NE5532 (30V). in my m3 amp i prefer the 627/637 to the 8610, but, the 86x0 chips sound more 'thin' or 'spidery' the more you crank up the power supply voltage. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 48 in quantities of 100. Having said that though, in all honesty I can't really articulate 'why', but there is indeed something particularly nice sounding about that dual op amp. 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, After publication of reviews, the authors do not retain samples other than on long-term loan for further evaluation or comparison with later-received gear. The new LM4562 op-amp from has received great reviews, but are pretty hard to come by, and relatively expensive in small quantities. You would have been better off just buying a better amp in the first place. 1µF decoupling capacitors to the op-amp power supply pins to stop oscillation (increased distortion with increased volume) from the pickier op-amps, LM4562 and OPA2228 in particular. Joined Feb 23, 2019 Messages 5,117 Likes 12,409 Location Prague. 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 I tried swapping the original 5532 op amps for OPA2134 (purchased from Amazon) and amp sounded noticeably worse with the 2134s. I like the lm4562 a lot in some jobs but watch out for dc offset -- It seems like the best performing audio op-amp that still comes in a DIP package is the LM4562, so that is what I plan on using for the op amps. nadjqep qhjvj vrkmct ychjts azs xtlv ssyj ehxtm dzcq izwr