If you're interested, someone is selling a Consonance Box 1.1 USB to SPDIF converter.
The impression is great in this audiokarma thread.
http://www.audiokarma.org/forums/index.php...oly-cow.430272/

I don't think for RM400 a USB DAC will sound substantially better than your built in DAC on the amp.
But if you're interested I have an extra Aune T1 MK2 I don't use. I can loan it to you until you get a new DAC. You can try comparing too.

Those suggestions are for converting USB to SPDIF, so you can use your Yamaha DAC. It would be good and cheap to try.

If can open, see what are the components and check if no fake caps/transistors, etc. Especially the power section.
I've got a china clone DIY Naim NAP200 power amp, Now letting it turn on for 1 week no turn off. So far running well. Sounds quite ok too, but I've never compared to a real NAP200 so I have no idea the performance.

But I thought you said difference between an external USB DAC and your integrated audio codec is 11am and 12 noon.

This post has been edited by penmarker: Feb 22 2017, 09:51 AM

High noon is hotter and can have ice cream.
They're SMD components, very small so hard to determine if legit. The Cirrus Logic CS4398 DAC chip is one of their flagship chips, but implementation circuit is also a determining factor for sound quality. Its the same chip inside Astell&Kern AK100.
It says there in the listing it doesn't support DSD out from COAX, so only line out or headphone out.

I'm not worried about any component blowing smoke or etc at all its only a 5V device, just concerned about whether it will be good for $75.
If got extra money then can try buy. I won't mind buying if like around RM150 or so just to test.

I'd trust the nuprime too.

My setup only 9am i think but still enjoyable too.
Just contact me if you still want to use an external DAC since I got that extra Aune T1. But no digital out though, only RCA and headphone.

A few years ago when I've just bought the Aune T1, with my IEM I cannot hear any difference between using it and my computer headphone jack. But when I use higher impedance headphones and such I can hear difference. Cannot really say night and day but it could be because my laptop's on board audio is good.
If you got good equipment downstream, DAC upgrade can give big difference.

I like this review, he tells it as how he heard it.