USB dsp for $2.23

wb4jfi wb4jfi at
Mon Mar 29 13:15:58 CDT 2010

Alberto di Bene wrote:
> On 3/28/2010 10:39 PM, wb4jfi wrote:
>> I'm interested in a couple, but I cannot find if the microphone input is
>> mono or stereo.  If stereo, they could be useful with SDR work.  If
>> mono, only as a line output, so not as useful.
>> Terry
> I bought on eBay a couple of similar devices for about the same price. 
> Tested both of them for a few minutes,
> then both of them found their way to the dust bin.... awful quality, 
> absolutely non usable for SDR...
> Maybe I was unlucky, and maybe the brand is different, don't know. But 
> the label "3D SOUND" was identical....
> Don't expect too much from them... calling the two I received 'pieces 
> of junk' does not render justice to
> all the junk of this world....
> 73  Alberto  I2PHD
> ...
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I agree.  I looked up the chip that is allegedly in them, it is a 
two-channel, 48k DAC, and a mono, 24k{!} ADC.  Not worth too much in the 
real world.

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