Make sure it has at least 12 AWG conductors and has a "floating" shield (that's a braided and/or foil shield that's connected only at the AC plug end.)
That may sound like overkill, but for some reason CDPs and CDTs and (especially) DACs seem to like 12 gauge power cords and the floating shield will keep digital RFI from being broadcast from the power cord.
Also try and plug your digital stuff into a different circuit from the other sources.
That may sound like overkill, but for some reason CDPs and CDTs and (especially) DACs seem to like 12 gauge power cords and the floating shield will keep digital RFI from being broadcast from the power cord.
Also try and plug your digital stuff into a different circuit from the other sources.