do I need two pieces of AD827SQ, or should I just use one piece and put it in the middle to replace the stock opamp?
For the XD-05+ you would just need one AD827SQ. The XD-05+ takes one dual (2 channel) op amp, or two single channel op amps.
do I need two pieces of AD827SQ, or should I just use one piece and put it in the middle to replace the stock opamp?
I see.. noted with thanks.For the XD-05+ you would just need one AD827SQ. The XD-05+ takes one dual (2 channel) op amp, or two single channel op amps.
I don't have the balanced, just the "normal" one, but the Bursons were a significant upgrade in SQ and soundstage from the stock. I don't see why it wouldn't be the same with the balanced version.Hello, I have Xduoo XD05 Bal for my principal portable dac/amp for sometime. I'm interested switch opamps with Burson V5i dual. Someone tries this? What what's the change?
Thanks!
Thank you good sir for posting these results and comparisons. Super helpful for choosing the right one.Over the last few months I've tested 42 different Op Amps......
I have not--- I've only tried the SQ, AQ, and single version (847SQ). In all cases they sounded differently, but not sure if that would hold true with the JNZ variant. I'll add the JNZ to my to do list as I'm curious about it, but it will take some time. I've got a bit of a backlog of things to test and compare . Next up will probably be the V6 classics.have you tried the cheaper ad827jnz to see if they are similar to the ad827sq?
hello everyone I do not write much but I read a lot, I bought yesterday xduoo xd05 bal and I am waiting for its arrival, and I wanted to know if like you there was someone who had tried many op amps since the free ones made by you are on chip dac ak4493. furthermore, upon arrival, I will test whether the balanced output has separate masses. as for the op amp they attract me both for the price and for the speed of finding them the "oracle 2" has anyone tried them on xd05 bal? goodasetara to allOver the last few months I've tested 42 different Op Amps in order to find one that makes the XD-05+ sound just as good as a high quality desktop amp. In short, I failed. The chip that sounds closest to my desktop reference is probably about 90% there. 90% is certainly close, but I really was hoping for perfection. Having tried almost all of the reputable chips, I would bet the remaining 10% is probably some other part of the Amplifier that would need to be upgraded (capacitors, or some other part of the design).
Below is some info on the chips, all of which is entirely subjective and mainly applies to the XD-05+. This is likely also relevant to the regular XD-05 (for dual chips), but I've got no way to confirm that. My main focus was to find a sound that is faithful to the original intent, and as close as possible to what a desktop amp would provide. That said, some chips are just technically better than others even if they aren't truly neutral, so trying to rank them gets complicated.
The Winner:
AD827SQ : Tonally perfect, with a semi 3D sound stage and great details. With this chip the only thing holding the Amp back is a little more separation and refined clarity on every note. It's close, but a desktop amp will still sound better in a subtle but noticeable way.
Notable Runner Ups:
AD829SQ: Just like the AD827SQ, but a little thinner. May be preferable if your headphones are a little thick by default.
AD827AQ: Similar to the 827SQ, but without the 3D stage, softer details, and an extended treble. Costing less than half of the SQ, this is a great choice if you don't feel like spending for the SQ, and don't mind a treble that extends all the way without being sibilant.
AD829AQ: Just like the AD827SQ, but with a little less of everything (stage, details, separation, etc...)
Muses02: Slightly higher than neutral which leads to a much 'clearer' sound compared to the 827SQ. Very good separation and stage, but the downside of this chip is that it is brighter and thinner than it should be. May be a good choice if you have dark or thick sounding headphones.
Muses03: Brilliant stage and details, marred by a much lower than neutral tone. This probably has the best stage and separation of all the chips. The treble is very rolled off, leading to a much lower than expected tone. May be a great choice for those that have overly bright headphones, or those that are very treble sensitive. Those looking for neutral should look elsewhere though.
Burson V5i: The thread favorite. Going by majority consensus this is the chip to get. As far as technical performance goes, it is excellent. Great stage width, depth, and details. What keeps this from being my #1 or #2 is the much darker than neutral tone, and a subtly loose bass response. It's not as tonally low as the Muses03, but it's close. Every note is a bit off which is fine for most music, but with electronic music it's very noticable.
Other Chips worth mentioning:
OPA627: Renowned in many DIY forums for many different setups, but it just doesn't work that well in the XD-05. Produces a good sound, but overall flat and boring.
Muses01: Way north of neutral in tone. All notes are brighter than they should be. The only nice thing about this chip is how clear everything is, but that is just due to how thin the mids are.
Muses8920: Of the Muses this one is closest to neutral. Less bright than the Muses02, but just a hint north of neutral and a bit thin. It has better stage and separation than most regular chips, but lacks refinement compared to Muses02 and Muses03. May shine with the right headphone setup, and also costs significantly less than the rest of the Muses line.
OPA1612 (Stock): Similar to OPA627, this is also renowned in DIY forums. It seems like a technically capable chip, but something about it isn't right in the XD-05. Puts out a dark, muffled, and mostly flat sound in this application.
Here's the rest of the breakdown. This is not ordered in a true ranking. I've got details on all the chips, but it would take too long to truly rank them. I doubt anyone cares which one is #37 as opposed to #38 (I certainly don't), so they are just categorized more in generalized groups:
Op Amp Single/Dual Rank AD827SQ Dual 1- Best AD829SQ Single 2 - Excellent AD829AQ Single 2 - Excellent Muses02 Dual 2 - Excellent Muses03 Single 2 - Excellent AD827AQ Dual 2 - Excellent AD822 Dual 2 - Excellent AD828 Dual 2 - Excellent Burson V5i Dual 2 - Excellent AD811 Single 3 - Great AD844AQ Single 3 - Great LT1122 Single 3 - Great Muses8920 Dual 3 - Great NJM2114 Dual 3 - Great OP275 Dual 3 - Great OPA2134 Dual 3 - Great OPA2227 Dual 3 - Great OPA2228 Dual 3 - Great OPA2277 Dual 3 - Great RC4558 Dual 3 - Great AD797 Single 3 - Great AD711 Single 4 - Good Muses01 Dual 4 - Good OPA604 Single 4 - Good OPA627 Single 4 - Good AD712 Dual 5 - Mediocre LF353 Dual 5 - Mediocre LM4562 Dual 5 - Mediocre LM833 Dual 5 - Mediocre LME49720 Dual 5 - Mediocre NE5532 Dual 5 - Mediocre NJM4560 Dual 5 - Mediocre OPA2132 Dual 5 - Mediocre TL0171 Single 5 - Mediocre TLO52 Dual 5 - Mediocre OPA1612 (Stock) Dual 5 - Mediocre AD823 Dual 6 - Bad AD826 Dual 6 - Bad NE5534 Single 6 - Bad NJM2068 Dual 6 - Bad NJM4558 Dual 6 - Bad OPA134 Single 6 - Bad
It's the volume pot. Turn the amp off and then turn the volume knob back and forth quickly a bunch of times. That will likely get rid of the static for some time. It will probably return at some point, so just repeat the process. It happens to many amps.hello when I turn the volume of my xduoo 05 plus, I hear a rubbing noise, is this normal thank you
Yes, is normal. I confirm as well. No worries.hello when I turn the volume of my xduoo 05 plus, I hear a rubbing noise, is this normal thank you
Perhaps a blast of contact cleaner into the volume pot might remedy it.Yes, is normal. I confirm as well. No worries.