Anyone tried those cheap usb sound cards?

Westerp · 5th May 2009, 06:45 PM

On dealextreme there are a few starting at $ 2.26 up to $ 10.79
and I wonder how they sound when the output is taken before the earplug
amp which I guess is also in there. I ordered three different ones just to play
with

Maybe a clean 5 volts and some decent caps clean them up and make
them into real cheap dac's.

jkeny · 5th May 2009, 09:47 PM

I think the cheaper one is based on a C-media CM108 chip which is quiet interesting:
SPDIF & I2S output
external 12MHz clock
USB2

Might be good with external 5V supply & I2S to external DAC & good clock

Datasheet here: http://www.qsl.net/om3cph/sb/CM108_DataSheet_v1.6.pdf

Let us know how it sounds & if you do open one up?

Edit: some posts here: http://www.diyaudio.com/forums/showt...341#post721341

5th May 2009, 06:45 PM	#1
Westerp diyAudio Member Join Date: Jan 2006 Location: Amsterdam	Anyone tried those cheap usb sound cards? On dealextreme there are a few starting at $ 2.26 up to $ 10.79 and I wonder how they sound when the output is taken before the earplug amp which I guess is also in there. I ordered three different ones just to play with Maybe a clean 5 volts and some decent caps clean them up and make them into real cheap dac's. __________________ http://tda1541a.com The Final List

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5th May 2009, 09:47 PM	#2
jkeny Banned Join Date: Feb 2007 Location: Dublin	I think the cheaper one is based on a C-media CM108 chip which is quiet interesting: SPDIF & I2S output external 12MHz clock USB2 Might be good with external 5V supply & I2S to external DAC & good clock Datasheet here: http://www.qsl.net/om3cph/sb/CM108_DataSheet_v1.6.pdf Let us know how it sounds & if you do open one up? Edit: some posts here: http://www.diyaudio.com/forums/showt...341#post721341

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