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Review and Measurements of SMSL VMV D1 DAC

mn4

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Can confirm the D1 works in Native DSD 512 in Linux no problem - it is an XMOS u208 after all. I did have to add an entry for the D1 in the linux kernel and recompile. Have submitted a patch so hopefully in future won't need a custom kernel.

To my surprise (or maybe not, going by these measurements!!) is just how much of a step up the DSD performance is to its already excellent PCM performance.

It's easily going toe-to-toe with my existing DAC in DSD (T+A DAC 8 DSD) and ofcourse leaving it for dead in PCM mode. Only been powered on for 10 days or so.

On previous DACs the differences between filters in HQPlayer were subtle, where as they have more of a profound impact on the D1's output.

Well done SMSL, hell of a way to declare your high-end intentions on your first attempt?!
 

Veri

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Also worth mentioning, my D1 unit had a few scuffs on arrival (top of chassis marks). After sending pictures, SMSL customer services are sending a replacement shell so I can replace it myself. No fuss!
That's very graceous service :)
 

mn4

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Well, that lasted long. It's output has suddenly become very quiet, in either fixed or variable mode. Have tried a factory reset, no impact. Let's see how customer services manages this...
 

amirm

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Well, that lasted long. It's output has suddenly become very quiet, in either fixed or variable mode. Have tried a factory reset, no impact. Let's see how customer services manages this...
With or without the mod?
 

mn4

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With or without the mod?
There's a mod? From its XLR outputs, not modified it at all.

edit: oh sorry, at max with variable volume is the same as fixed volume control - its output has significantly dropped.
 

amirm

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There's a mod? From its XLR outputs, not modified it at all.
Oops. Sorry, I thought I was in SMSL SU-8 thread. :)

No mod for this. Is the problem the same for XLR and RCA? And no issue for target amplifier?
 

mn4

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Oops. Sorry, I thought I was in SMSL SU-8 thread. :)

No mod for this. Is the problem the same for XLR and RCA? And no issue for target amplifier?
Amps are fine, just plugged T+A into same source, all good. I don't have any amps with RCA inputs, so won't be able to test that. Did factory reset a few times just in case, no improvement even left in "fixed" mode from a reset.
 

mn4

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If they get me an exchanged unit fast (they have stock in EU) I'm happy :) Going back to the T+A ... eeeish. D1 really is a step forward in PCM mode (when it works, ofcourse)
 
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mn4

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Replacement arrived and working (so far). Must have paid a lot of $$$ to get it from HK so fast.... no battery in remote this time, but at least the case wasn't bashed up like previous :)
 
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OK, so DAC is stable and behaving as expected, breaking in well. However I seem to have received a remote which half the time decides to go in the wrong direction volume wise o_O back to Customer Services...
 
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Hi @amirm ! Is it possible for you to take a photo of inside the VMV-D1, together with the old board you took out? I am very interested in seeing whether SMSL has improved/updated their design through the manufacturing cycle (with newer version of board design). Also I could be more confident to know if I receive the latest version of the product.
 

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