Ebay Dac Kits OK?

Zero One · 19th February 2009, 08:41 AM

Does anyone have any feedback on the actual performance/quality of these DAC kits?

http://cgi.ebay.com/Hi-End-24bit-192...742.m153.l1262

On the surface it looks like a good deal, I imagine there would be quite a bit of room for tweaking.

Any ideas?

ccschua · 19th February 2009, 10:58 AM

the design and components looks good. the forummer luxury54 has a running unit.

What I dont like is the output stage which is using NE5532. kind of cheap and limited

Kevin Wood · 19th February 2009, 01:40 PM

I've just bought a similar board without the USB interface. Like yourself, I figured it would make a good "starting point" and, having put it in a case and made it "living room friendly" I was pleasantly surprised by the way it sounds.

There is certainly room for improvement. Some unnecessary decoupling caps in the signal path and a second Opamp stage that doesn't appear to achieve a great deal but if you plan to mod it I don't think you'll be disappointed.

The only downsides I have noticed are that the board has a black solder resist layer that makes it difficult to follow the tracks and pads on the ground plane are not very well thermally isolated from the ground plane so it takes a lot of heat and patience to desolder anything that goes to ground.

I don't suppose anyone has a schematic for these boards?

Kevin

19th February 2009, 08:41 AM	#1
Zero One diyAudio Member Join Date: Apr 2006 Location: Goulburn NSW	Ebay Dac Kits OK? Does anyone have any feedback on the actual performance/quality of these DAC kits? http://cgi.ebay.com/Hi-End-24bit-192...742.m153.l1262 On the surface it looks like a good deal, I imagine there would be quite a bit of room for tweaking. Any ideas?

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19th February 2009, 10:58 AM	#2
ccschua diyAudio Member Join Date: May 2008	the design and components looks good. the forummer luxury54 has a running unit. What I dont like is the output stage which is using NE5532. kind of cheap and limited

19th February 2009, 01:40 PM	#3
Kevin Wood diyAudio Member Join Date: Oct 2007	I've just bought a similar board without the USB interface. Like yourself, I figured it would make a good "starting point" and, having put it in a case and made it "living room friendly" I was pleasantly surprised by the way it sounds. There is certainly room for improvement. Some unnecessary decoupling caps in the signal path and a second Opamp stage that doesn't appear to achieve a great deal but if you plan to mod it I don't think you'll be disappointed. The only downsides I have noticed are that the board has a black solder resist layer that makes it difficult to follow the tracks and pads on the ground plane are not very well thermally isolated from the ground plane so it takes a lot of heat and patience to desolder anything that goes to ground. I don't suppose anyone has a schematic for these boards? Kevin

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