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Old 31st October 2013, 06:29 PM   #1
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Default Cheap multichannel USB mixer

Some people are mentioning a $63 8 channel USB mixer, that- alas- has a wicked 1000Hz hum.

I don't suppose anyone's opened one up and tried to trace down or filter out the problem noise? Would be great to have an affordable multichannel input device, and it looks like there's a huge amount of value here, if the fatal flaw can be worked around.
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Old 1st November 2013, 12:03 AM   #2
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Cheap and nasty. Seen the video and \i am not convinced that a different mains outlet will stop the 1KHZ whine!How can it?
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Old 2nd November 2013, 08:11 AM   #3
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Cheap and nasty switch mode power supply? Perhaps changing this might help. I can't see much else (i.e. on board effects, dynamics processors, etc.) that could generate a 1kHz tone.
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Old 2nd November 2013, 09:08 AM   #4
Enzo is offline Enzo  United States
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How about the communication interface itself? 1kHz is at least a couple orders of magnitude too low for an SMPS switching freq.


Get your guitar too close to your computer, and it will pick up all manner of digital noise.
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