SMSL, Sabaj and Loxjie are the same corporate group and share product design.
Therefore, the circuit design, parts used, and appearance design are very similar. D5 is a derivative of M400.
-
Welcome to ASR. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!
strange SMSL M500 high 3rd harmonic
- Thread starter liu
- Start date
Therefore, the circuit design, parts used, and appearance design are very similar. D5 is a derivative of M400.
That's the Loxjie D50. D5 is 9038pro based.
Opps! I made a mistake.
The same is true for the SU-9 and Sabaj A20d.
Is it difficult to solve the M500 problem? The M500 also has a problem with XLR output pop noise.
If you connect the XLR output directly to the power amplifier and turn on / off the power of the M500, you will be hit by a large pop noise.
How is the progress of the D30Pro issue?
I bought the D30 Pro right after its launch and immediately noticed a PCM 384kHz noise problem and reported it to Topping. Is this problem likely to be resolved soon?
The D30 Pro also has the problem that when switching to a song with a different bit rate, the beginning of the song disappears due to the fade-in operation.
Last edited:
JSmith
Master Contributor
As others have said it's not hard to measure this problem and provide the retailer with evidence of same... or just link them to this thread as the measurements supplied by @liu at the start of this thread should be enough evidence, for the M500 at least.
Further, you did see the opamp swap right?
JSmith
Which SMSL is the Loxjie A30 amp?
JSmith
Master Contributor
Possibly the SA-300 as they both use the same amp module, slightly different though;
https://www.audiosciencereview.com/forum/index.php?threads/loxjie-a30-amplifier-review.17547/
https://www.audiosciencereview.com/...msl-sa300-infineon-class-d.12210/#post-356924
https://www.audiosciencereview.com/...00-infineon-class-d.12210/page-10#post-663899
JSmith
aandres_gm
Senior Member
Firmware update is coming, as per John. Also, I haven't noticed the second issue you mention, it probably got fixed already. Good thing is you can update via USB
Further, you did see the opamp swap right?
JSmith
I certainly did! The evidence isn’t needed unless you take them to a Tribunal (cheap but very tedious - I have done it for a $10k item), usually a phone call from the Department of Fair Trading is as far as it goes. Rarely necessary though, the law has totally changed our business culture. Except for the banks, it does not apply to them so no surprise there.
Anyway, if the SU9 is a relatively easy fix I might just pay the difference to switch the M500 for that, it will look nice with the SH9.
solderdude
Grand Contributor
Is this do-able for 'Jan met de pet' ? (for everyone without knowledge)
Veri
Master Contributor
- Joined
- Feb 6, 2018
- Messages
- 9,667
- Likes
- 12,300
Ha-ha, that Neverlands terminology
Great to see SMSL figured out a fix. (will this be possible for M500 and SU-9, both?).
What a great effort, thank you!
I think this operation is very simple for SU9 (the operation instructions are also completed --- it is currently in Chinese, and it is not very clear. I will make comments). The question now is how they provide services for the units sold. I will continue to follow up on this.
Compared to SU9, I am more worried about M500...
- Joined
- Oct 25, 2019
- Messages
- 12,489
- Likes
- 18,131
I can foresee a situation for M500 owners where they are asked to return to China for a fix to be applied. Which isnt really an option given costs , risk of loss etc. Doesnt seem like a remote firmware update is possible and regular Joe's like me will do more harm than good trying to access the guts to plug something in.
I see a recall/ replace coming!
But also for the SU9 it will most likely never work simply over USB and you always need this plug, right?
yes
Similar threads
