Anyone tried those cheap usb sound cards? - diyAudio
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Old 5th May 2009, 07:45 PM   #1
Westerp is offline Westerp  Netherlands
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Default 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.
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Old 5th May 2009, 10:47 PM   #2
jkeny is offline jkeny  Ireland
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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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