The distortion appears also with the EV RE20 which is a dynamic
microphone, and it distorts always when the clip LED of the A/D
interface flashes.
But I will keep an eye on this.
Thanks for your help.

"David Morgan \(MAMS\)" wrote in message
How can you be *absolutely certain*
that the distortion is coming from the digital side of the equation?
Have you eliminated _everything_ analogue?

DM