In article om, mick
wrote:
Hi Brian, You don't mention which unit you have, but I'm using a
Behringer UCA202 feeding a home-brew headphone amp. There's no apparent
background noise at all. I'm using a quite good quality lead between
the Behringer and the amp to prevent noise being introduced here. I've
not got any sort of fancy power supply or earthing arrangement.

Brian mentioned his having a ground terminal. The UCA202 I have doesn't
provide one of those. So he may have a variant that includes an RIAA
preamp.

However when I tested the 202 it seemed OK *provided* the power supply to
it via USB was reasonably good. Changing lead here didn't seem to make any
difference - by measurement or listening.

We'd probably need more specific details of what Brian is doing to take
this much further.

Jim

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