Best op amp for audio reddit

Best op amp for audio reddit. Oh, and it gets hot too; LT says about 9 mA quiescent current. The OPA227/228 series can be had in single, dual, etc. • 3 yr. I also see plenty of expensive powerful amplifiers that hang out around $1000 (or more). figure out which one has the features you want, order that one. Be careful if using these as they are stable only for gains of greater than 3. Crypto Aiyima, SMSL, Loxjie, Topping all sell quality amps. 2) LM311 is OPEN COLLECTOR so it always needs a resistor load from output to +V ; typically 4k7 or a lamp/relay coil/etc. Oct 29, 2009 · 2021-07-24 7:59 pm. The Aiyima A07, is a good amp. The dual OPA1688 buffer amp shown above plus the PSU from this project : a 310mA +/-18v DC-DC plus TPS7Axxxx LDO regulators and MOSFET cap Mx plus CRCRC filter is an awesome combination. However, an OPA2134 is a good choice that will sound better than the NE5532, without any problems. #6. NE5532 incoporates BJT circuitry inside, but if u wish to go something with FET circuits inside AD825 is the best choice. TL/DR - tests slightly better than the Aiyima AO7 (falls in the very good category) and has BT with decent tone controls. Simgot EM2. Jun 24, 2018 · This is my current listening rig while the basement audio lab is undergoing repairs due to flooding. The ratio of maximum supply voltage to minimum supply voltage works out to be the same: OPA322: 6V/1. Many older op-amps can't even read signals near their power rails - NE5532 for example can't "see" inputs within May 28, 2020 · Nord describes the difference as "significant" and says the Rev D buffer "adds warmth" to the sound. Burson Audio V5 Discrete. 2u MKS. Ciao, George. 4) massdrop 789 aaa paired with rme. . If you're worried about output power, the USB2. 5) if +/- V rails seem collapsed by some shorted Op Amp guzzling all the current, use the "Thermo_Finger_O_Meter" to find it. Then do 1st and 2nd order low pass and high pass filters. Despite its low cost, the case gives a feeling of quality. Dec 3, 2011 · Audioguru. High frequencies need good op amps, low frequencies don't. i hear a more linear and 'normal' sub bass for my HD 560S and Oct 23, 2019 · The LMH6629 is a high-speed, ultra low-noise voltage feedback operational amplifier. P. This is a very special device because it can operate at large gains and still deliver exceptional speed and low noise. 4 mA per opamp section, which is significantly less than the 5532. #4. Others can go more - good for them. + apple usb-c to 3. A high quality integrated amp, with a high quality phono preamp might be a good upgrade for OP, but might not be worth it depending on what the rest of the system is (ie, speakers). So, a slew rate of 9 V/us is probably the minimum SR. It has a modest power consumption at typically 1. Jul 5, 2006 · The OPA2228 is pretty good; but the OPA2227P too isn't nearly as bad as certain people claim. We can eliminate power op-amps, super-high-speed op-amps, high-voltage op-amps, low-frequency op-amps, and low-spec general-purpose op-amps. 0 has a bitrate of 480Mbps, while CD audio quality is only 1. (3) DC bias current is in the femtoamp range, so even 1M will introduce trival voltage offset. So yes, it's a better chip. HelicopterMoon, In my opinion and experience it is not worth the cost to upgrade the opamps in the ae-9 unlike previously sound blaster cards. Op-amps can perform slightly better with more headroom between the voltage levels it’s using and what they’re being supplied. The MCP646/6R/6U/7/9 series all possess a low input bias current and rail-to-rail input and output operation. 3) 1 and 2 combo. They have a nicer tone quality than many others. So back to post-purchase: I like to know how things work, and in this case why swapping out an op-amp would affect sound. Not much is there to choose from, but I'm sort of torn between these there: AD823 Analog Devices: AD823: Dual, 16 MHz, Rail-to-Rail FET Input Amplifier :: Operational Amplifiers (Op Amps) :: Amplifiers and Comparators Using them with low impedance dynamic headphones like the Beyer's can change the frequency response, so these are probably best avoided. +5V supply is good, can try 9V or 12V. Fosi Audio BT20A Pro Amplifier Review. 1 (adding a subwoofer), 3. OR the Roland JC120. NJR Corporation MUSES01 IC. Music wise, that's about the best possible solution. I used the 50k trimmers for the feedback resistor of each pre-amp so I could balance all the channels; at 1kHz it's unity gain throughout with all the volume controls up. I don't know about the best opamp for your player,for reasons mentioned in the previous reply by Crippled chicken. I also use since it came out, the 828 as front end in Penasa' s Evolution amp, a composit power amp with dual 3886 buffer (current pump) in output. I was going to change the HA1457 in the RIAA when I changed the EQ and gain. 5V battery without a lot of other components. Very versatile, does pretty much everything other than high gain sounds. 5-2K. 5mm dongle as a dac. Matamp 1224 mk6. Apr 15, 2011 · On a budget: Use higher GainBandwidth op-amp ( more pricy ) for the two upper ones ( giving High ). 1uF cap across the output load. 3. Jan 11, 2007 · 126. Joined Dec 20, 2007. Our audio amplifiers deliver clear sound, while enabling you to meet demanding system requirements in both industrial and automotive applications. Jun 24, 2018 · Add RFI filter on input, lots of good x7r bypass caps next to legs of opamp. Crypto Apr 10, 2023 · Apr 10, 2023. #7. I use OPA627s and OPA637s exclusively in my guitar amps for the front end. It can't magically produce 10V from a 1. Beyond that, spend your money on lower noise and distortion. Hence upgrade-itis setting in. The OPA627/637 series is only available in singles, and yes, they are expensive. To add to your answer, the Op-Amp can be used to: boost/amplify an input signal through the output, maintain a constant output signal while input sources are at within a certain range, invert the direction of a signal (between V+ and V-) And this is beginner level: I say so because I'm beginner level with this component and this is the simpler Mar 24, 2006 · I've used Burr-Brown op amps before. Vancouver (ish) Aug 21, 2022. 5W of power, while your DAC only dumps 1W. (1) and (2) The capacitor blocks the flow of bias current into this op amp input, so it can float to the same 4. The seven opamp array gives 140mA max output current NewRelm. I let the Mojo do the DAC'ing and the CDM the amping, maximum sound quality. Aug 21, 2022 · Location. MCP6499-E/SL Microchip Technology. The VCOM is the bias voltage on the output of the DAC and is used as a virtual ground on the op-amp as others have said to avoid the need for a negative supply. If I were to build a 3 way LR filter I would use one OPA2134AP ( for the High ) and three NE5532AN ( for the Mid and Low ). Mojo has exceptional detail so why not stack and feed that detail to a competent amp. Groner's "Operational Amplifier Distortion" is also generally aimed at audio, even though the title doesn't say that; unfortunately it doesn't cover any JRC products. The easiest example is an audio application. 677 you'd set up an amp with a gain of 1. Feb 11, 2021 · The JFET input devices give their best noise performance at medium impedances, in the range 1 kΩ–10 kΩ. Last edited: 2021-07-24 8:05 pm. More recently I have use NE5534 's in my guitar amps. Do inverting and non-inverting configurations. Reply. These do run a bit on the 100+$ range, but if you need a budget amp, the SA-50 would be good start. I really want to increase the clarity of my amp since the sound of my office amp pales to my home setup. #2. It really depends on the amplifier, and the D/A converter you want to use. For not-quite-nosebleed, the Burr-Brown portfolio is especially delightful. 3) LM311 can NOT drive a speaker. Apr 21, 2019 · Cons: too large to fit into some portable models and get case re-installed, Slightly bright (may bother the treble sensitive), More costly than some alternatives. When used as a single dual stereo op amp I find the soundstage a bit flat and a thick sound. Aug 18, 2021 · 1,217. Enzo. Even the coveted OPA627 monolithic op amp, with a price tag of over 25 dollars, has 30dB less gain Hi, I am trying to build a 555 timer from “scratch. In such a conditions an opamps with relatively high unit gain freq and deeper feedback in the audio band (usually beter in terms of measurements and Thanks for your suggestion. Aug 19, 2021. Hello, I'm searching online guides and Op amps to get to improve my Douk Audio sound and performance, looking over people reviews it seems that the Muses 8920 are the best ones for it. Meanwhile, 1M is large in comparison to your source impedance, so the voltage May 19, 2004 · Joseph K said: In fact, I had put in Yanasan's dual 4499 dac the OPA1656 as I/V converter and the OPA828 as diff/ SE summing. My design requirements are really centered around pico-amps. The Rode might work. Agree with previous post, fast, detailed, revealing and neutral. Standard opamp for higher voltages: lm324, yes its crap, but for a few cents per 4 opamps and for plenty of solutions its sufficient. Maybe your speakers are rated at 60W peak which is 30W RMS. All the switching options ensure top notch tone at just about any volume (lowest setting is 3. There is an unbelievable amount of information out there on the topic, and as much opinion as well. This causes all kinds of problems with input stage overload when presented with the step output of a DAC. It was sent to me by the company and costs US $99. Split passive equalisation with buffer/gain blocks between stages. g. 99 with 32 volt power supply. The older NAD 2100/2200/2400 are rock solid and dirt cheap. • 4 yr. I made a four stereo channel audio mixer out of LM358 dual op-amp chips. It comes in an 8-pin DIP, 10-pin DIP, 14-pin DIP package and offers interesting features which are discussed below. Below is the simplest start to understanding how and where to start as a budding audiophile. The crummy gain-bandwidth product of the PSU (caused by the crummy GBWP of the OP07) means its output impedance at high audio frequencies is large, so you'll get lots of load current induced noise on the supply. I. any of the widely recommended 100$ ones. I have rolled Bursons, Sparkos labs and other opamps and noticed very little difference between Feb 28, 2021 · OPA2134 has good tone and detail when in single mono mode ie with two op amps one per channel. May 26, 2020 · 2020-05-26 9:40 pm. an op-amp is powered by 0V and 5V. + higher power output (max. , the intended use. N. I don't think I want an amplifier circuit because it's going into a TV which I'm assuming is also amplifying the signal. But say you want to drive a large speaker. This can distort the amplified signal if it isn't compensated for, and will also affect the power draw of the circuit. #1. It’s worth noting the iFi made a version of the Zen Dac and Zen Amp specifically for the 6xx… that stack is well regarded, so if you want a tailor made experience that’s an It's definitely possible to use a simple opamp as audio amplifier. Nov 15, 2012 · 2) power the circuit, measure voltage at +/- rails, output and +/- pins. HIFIMAN HE-1000SE. Most decent 50 cent opamps are more or less transparent in the audio band and well beyond. The best op-amp for an I-V converter is no op-amp. LM4562, but in some players it may The best way is to put a Roon or a UPnP server to your PC. 2023-01-12 6:40 pm. You could also try the. We focus on education, discussion, and sharing of entry and mid level separate & multi component audio systems. Jan 29, 2005 · 1. Some people love "harmonizer" amps, amps that emphasize certain harmonics (even Here's what I have observed: I see a lot of cheapo Amazon 20-40 watt amplifiers. The largest problem is that the impedance of a speaker is usually low (8 Ohm), so you need an opamp that can deliver enough current. Same as @PRR, I'd suggest using four DIP-8 NE5532 dual opamp chips per channel. 2) RME ADI 2 pro. Mojo can seem a bit lifeless unless it's cranked up and even then it has less dynamism than the ALO products. + improved logarithmic potentiometer volume control. While researching components I came across some Burson op-amps and some rave reviews, and when looking up the op-amps on my board I learned they are no longer being made since there are now better ones available. 7V, and that assumes you're using low dropout supply regulators. Then the op-amp can only output a signal between those values. Before the cap or resistor the signal will sound fine, on the other side of the cap/resistor, the audio signal will either be almost none or none. That is A LOT of power and it all gets dissipated as heat, which is why the speaker melted. D. Because audio signals go below ground, and the vast majority of op-amps can't read signals beyond their power rails. The TL072 is a dual opamp. I can't seem to find the middle ground of a moderately powered amp for a fair modest price. The OPA2111 is OK, but nothing extraordinary. Since the headphones are on the high-high end, my budget right now would allow something in the range of $1. Build quality couldn't be better, the reverb sounds good too. Use lower GainBandwidth op-amp ( cheaper) for the other ones. Looks like there's yet another good sub-$100 amplifier option! Chi-fi continues to impress. 2004-05-19 4:14 pm. Mar 24, 2006 · Don´t forget supply current and the parts around the OP-amp There might be one additional aspect for stompboxes and for onboard preamps in particular - that is the supply current. Use two 2200uF 5v caps back to back for 10v bipolar outpt cap bypass with 2. Best opamp for my CD player. And just to take it a step further we can assume that both are driving the same power Feb 5, 2020 · 1. Atm I'm not sure which is the best shop to buy them since I'm in Italy and people say that the ones coming The simplest, and probably the best ones will use Op Amps, not LM741's but op amps specifically designed for audio circuits. An OPA134 single, OPA2134 dual or OPA4134 quad opamp is excellent. #17. I would like your opinions on these as well. 4) all your crossover impedances are at least 1000 times too low. So for the pre-purchase research I did, my assumption was different op-amps would sound different, and made my purchase after specifically comparing reviews between op-amps. Rob, NE5532 is really a good OPAMP compared to many others. 5V "ground" as the other input. ” I am going to use an op amp as a comparator. ago. It has a max supply voltage of ±18 V. Meze Audio Elite. Does anybody know if any good amplifiers populate the area of around $400-$500. Business, Economics, and Finance. Yes, we assume that both amps has to deliver the same gain, with the same components in the feedback circuit, so it would only be the amplifier stage itself that are either in a premade op-amp, or constructed from discrete components. The SS3601 / SS3602 discrete op amps will outperform virtually all audio grade monolithic IC op amps in open loop gain, noise performance, output current, and magnitude of class A bias current. I have no idea how an op-amp works. I currently Use A scarlett 2i2 as an audio interface and since the monitor jacks on the back use 1/4 inch plugs I spliced the Jan 30, 2002 · Joined 2002. Sounds great and powers some pretty strong LCR speakers I use on my desktop. Normally an audio amp is set to provide full rated power for an input of 1V RMS. Simgot MTW5. 8W. 1) LM311 is NOT an Op Amp. B. Reply reply. Long time ago OP-amps used to suck, and people also did not know how to implement them properly (yes, turns out making good circuitry requires knowledge and experience-just look how much SMPS-s have advanced!), that is part of the reason why they got a bad rep. today there are fet input "audio" op amps with much better outputs - OPA4132/4 and 2132/4 are esy to find in DIP. for reasonable prices that are just as good, if not better than newer $500 amps. Explore our portfolio of audio op amps and deliver a superior audio experience to your customers. With a 30V supply and a single-ended amplifier circuit the power into 4 ohms is only 13. – against very long user names. I have a pre-amplifier built using NE5532 with excellent performance outweighing most high end pre-amplifiers. Crypto Feb 11, 2021 · Aaargh! Such a listening tests with DAC and different opamps have one weak point - we doesn't know high-frequency noise and glitch from DAC chip. Mainly the high detail and clarity. $1000+ - Not familiar enough to sort by price range. with the op-amp, theres definitely a warmer, mellower sound. NwAvGuy has an "Op Amp Measurements" page in the same ilk, but with a much smaller selection. We'll rarely ever work with anything in the nano-amp realm. #11. Buying an integrated amp is not necessarily an upgrade. An opamp can multiply, divide, add, integrate and differentiate. snowtx. #2,487. DOUK AUDIO U3 Op Amp Rolling. Of course, many of us use our music listening set ups for multiple purposes - so 2. Schiit Magni or JDS Atom Amp. The uppgrade to lm4562 is a no-brainer if youre interested in hifi, and clearly worth 5 dollars . That one has input crossover distortion, so it won't be quite as clean as the OPA322. My personal OP amp preference for the Fosi V3 are Ti OPA1656 but others have different preferences. An LM741 has a shortcut current of 25 mA, at 15 Volts, gives you 375 mW at best. This is a review and detailed measurements of the Fosi Audio BT20A stereo class D amplifier based on TI TPA3255 IC. 7R Zobel to absorb any RF oscillation. May 12, 2012 · 2012-05-13 11:57 am. Only an inductor can create a higher voltage from a smaller voltage. That's key: it wasn't really clear that when you said "live feedback" you meant "low latency feedback" not "any near-real time feedback" . If cost is a factor FET-devices like OPA604, OPA132, OPA134, or AD711, AD825 (featuring a OPamp unusual high OL-bandwidth of >10kHz) and bipolars like the NE5534 or NJM4580 and their Dual and Quad brethren are suitable. The topmost LM358 buffers a ground midway between the supply rails - its a dual op-amp like all the But the Marshall DSL40CR comes up online. The LT1115 is really a special purpose device, optimized for low-Z sources and high loop gains. 6 volts. 2002-04-10 5:49 pm. 26 V/us at 20 kHz. I acquired a second hand 5. But in a good number of cases, eventually you're going to have to do something to step up that power. #3. LM4562 is another level altogether. 48V-5A power supply, but the Amazon version comes with a standard 32V-5A power supply. Jan 29, 2023 · 2023-01-29 8:31 pm. The M2 has similar output to the M-audio Duo at low impedance, so it might not be loud enough for you. But if there are some notable AMPs above this range I would welcome any recommendations. Caelestialis. Try r/audiophile if your spending more than $1,000 per componant. 3) rail voltages should be what's expected from the PSU. 452 x 1. I am using an UA741CP with VCC+ at five volts and VCC- at ground. why, in audio applications, you need to have a dual polarized power supply (as in +V Gnd -V) to power an op amp IC. I use this combo for my PS4 and PC, the DAC has 3 inputs (optical, coax and USB) on which I have my PS4 for optical Business, Economics, and Finance. 0 standard outputs up to 2. The max SR(signal) = 1. Another low distortion, low noise op amp is the LT1028. Part 1: Digital Media Source players: iPhone, iPod, iPad, Zune, Android device, Mac, PC, etc. Jul 27, 2007 · Joined 2007. For unity gain audio, I feel like almost any modern amp will do the job. I know I wont get rail to rail outputs. I would check it into a capacitive load. I have a dilema and I would like to hear your recommendation for best audio dual SOIC opamp, running at +5V only. Or, you can get a Dayton 2. Some designers say the amp SR should be at least 5x the signal SR, others say 10x. 8V while only drawing 2 mA/amplifier (typical) of quiescent current. 1 surround sound settup and want to use 2 of them as desktop speakers as they are small enough and are better quality then the cheep ones I was using before. The same for the AD746 (without external biasing), but here it's just because it's quite cold sounding. There were things called analog computers back in the day. Op amp rolling is largely a myth built upon the psychological impact of changing a component. + updated Texas Instruments chip for amplification. A Yamaha AVR, especially if you already own it, is going to be fine for general music listening. It looks like this is a 300 watt amp. $800-900 - Vox AC15 or Fender Hot Rod Deluxe. Several improvements have been implemented on the original BT20A, which was a bestseller for the company. 0. Likes. A load I have seen in testing is to place a 0. Buffer on the input with a bit of gain (+6 to +10db) before anything gets done to equalise. It has a –3dB bandwidth of 900 MHz and 1600 V/µs slew rate. The slew rate is higher than for the 5532, at 13 V/μs against 9 V/μs. 4) + In and -In voltages should be within a couple mV from each other, as noted above. It comes in a 8-pin WSON or a SOT-23 package. Oct 2, 2021 · In the case of my two Aiyima a04 and switching between ne5532 amp to lm4562 amplifier, the difference soundwise is clearly bigger than moving your head 30 cm in the listening room. Here you can reasonably expect 180w/ch on 4 ohms and 100w/ch on 8 but with far lower distortion and greatly improved linearity. an op amp can only output a signal within the range of its power supply. its a bit shouty and compressed. 11,248. Opamps have very little influence on the overall sound. Is this due to the characteristics of op amps where input impedance is close to infinite? For powering an audio amplifier with little to no bypass caps on the amplifier board / next to the output stage: beware. If you are running on on a 9V battery that is a lot. Add 270R load to output to absorb and dissipate turn on DC transient. however it sounds so good now I won't bother, scopes 20khz at 35v p-p with 0. I'm not clear how you would use it in an equalizer; the summing amp is about the only application that might make sense. Basically looks like this. all of the Z are in the range you expect to see fet input op amps - I'd guess that the 5532 was used on the output for its better line driving ability compared to the TL074/2. USB 2. Audio requires a fairly high slew rate to maintain low distortion, flat frequency response from 20 Hz to 20,000 Hz, and decent output current if the chip is to drive headphones directly. Confirm the expected cutoff from the op-amp datasheet. Oddly, on the output of the op amp, the desired amplification is achieved. 0 (L/R with a center channel), 5. If you must op amp roll, stick with digikey or mouser to ensure you don't get a fake. 7 volts. getting a 100 watts is more than enough. When it is below the - input, I get 1. The result is quite spectacular. Joined 2003. New comments cannot be posted and votes cannot be cast. 667 and feed it a voltage of 0. uA709M. 0 ohm series resistor), the eighth buffers the input signal and provides whatever amount of voltage gain you feel is necessary. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. If you want it in the PC mixer, as a source, the best way is, probably, either a USB cable or a USB to S/PDIF converter. Dec 31, 2010 · Dec 29, 2014 at 13:05. What's odd, though, is that the input to the filter (output of the DAC) has been AC coupled with a capacitor with nothing to re-establish DC bias on the inverting input to the op-amp. Amplifier Solution for PC speakers. e. 1. Power is P=R*I 2 = 32 watts. 5W, highest 50W clean). When the + input is greater than the - input, I get 4. 0 -- that really shouldn't matter. My new favorite multisourced cheap opamp is the LT1013, its a bit better in a few respects, especially in precision and offset voltage Sep 6, 2023 · All OP amps seem to have at least some sort of "audio" character of their own, allthough measurements don't seem to show this, but at least they give a hint. 1uF film and 4. I like these headphones for different reasons. 4Mbps, so USB has more than enough bandwidth to support any audio quality needed. If you read through the comments, Fosi has provided a 20% off coupon. All of the above mentioned audio-OP-amps need pretty much current (between 3 ang 6 mA per channel). 2007-07-28 4:58 am. 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. This Fosi V3 is the best of the bunch, a simple, genuinely powerful/useful, truthful, nice-looking and nice-sounding amp that can be tucked pretty much anywhere. $900-1000 - Fender Tonemaster Deluxe Reverb or Fender Tonemaster Twin Reverb before taxes. Add 0. In its most simple application, if you wanted to work out the answer to 0. Oct 8, 2001 · 2001-10-08 9:07 pm. An op-amp can drive some headphones, sure. Once the speaker is destroyed, if by some miracle the opamp is still functioning, there will be 32 volts seen across the 5K+1K resistors (between opamp output and -16V rail). Fosi BT20A Pro. 1 (surround) and up are also fair game. I believe this is caused by the design of the ae-9. Amplifier - Portable. Among the best are the OPA604 and the OP37. 1/3 gain and 5k loading maximum. LF353 is still an excellent op-amp. 8V vs OPA2170: 9V/2. Dec 3, 2011. Like Zeeall said, you can get an active sub with high level inputs and outputs, and run the speakers off that. I have auditioned many op amps over the years for use in audio. May 14, 2022 · The TPA3255 chip is next generation Class D from Texas Instruments, one big step improved over the 3116. SparkOS Discrete Op-amps SS3601 and SS3602 with comparisons to Ne5532/5534, Muses02, Burson v6 Classic, and Burson v6 Vivid op amps. Jan 12, 2023 · Joined 2009. The LM709 is an industrial classic, a mono amplifier designed and manufactured by Texas instruments in 1971 for general-purpose applications. If you use an extra set of transistors, like this schematic it Feb 11, 2021 · Most +/-15V op amps have max Vamplitude = 14V. The AD8620 and (even worse) AD8066 don't sound natural to my ears. #5. stock, the dac x-6 sounds slightly rolled-off on both ends. This single-supply op-amp can supply voltage as low as 1. Jul 29, 2020 · For the dac amp combo, I have a few suggestions based on some reading. 1 amp that powers you main speakers AND a passive sub. In my own experience, the Topping D30 DAC paired with the JDS Labs Atom Amp is the best bugdet combo for everything, it gave my M50x headphones new life and it makes the music and games sound outstanding. Unfortunately, the tool doesn't allow for pico-amp currents, only as low as 10 nano-amps. Seven of the eight opamps drive the headphone (each with a 1. 1) Monolith by monoprice aaaTHX 788. Yo udont need more than 20-50 watts to get sound loud enough for good listening levels. 452v and measure what came out. You aren't going to dump 10W into that from an op-amp. But the difference for the Purifi setup between the Rev C and Rev D is over $600. 01% distortion. So it would be something to look at, either of those work, or the Topping Mx3 is pretty good choice as well. Kriger369. The short version is that non-infinite impedance will slightly drain power from the input signal, which means that the op-amp is changing the input slightly. Apr 30, 2011 · If You want one device for all a FET-input OPamp should be Your choice. The max allowed supply is 36V. All freaking incredible amps. . in that case, your mixer solution is probably the best option. As Barrie Gilbert (one of the top analog designers of all time) explains, an op-amp is in reality just an integrator. And the few forum posts I can find Google searching are people raving about a big improvement going from the Rev C to Rev D setup for Nords NC500 amps. Simple passive 75us roll off as last equalisation, achieves noise reduction and maintains single pole to infinity, well almost. A low supply I use both MOJO and CDM, Mojo -> CDM -> IEMs. First, if you have a significant amount of audio, or plan May 19, 2004 · R. An op-amp, for example, is great for signal conditioning, etc. For your point on the PC only using USB 2. 2. You can get Rotel, Marantz, Sunfire, etc. I think to make this behave some amps have a small output inductor and a damping RC. better than on-board audio for gaming or youtube, but not super flattering or interesting as a budget audiophile product, imo. Its more fun to listen to the music. Posted by u/Zachrandir - 2 votes and 7 comments Aug 19, 2023 · I've owned several other Class D chip amps in the past, including the Aiyima A07, SMSL AO200 and at least a couple different TPA3116 Topping and SMSL models. ma td ea lw pj ph qj cf zi eg