you might be able to get some improvement with a power conditioner - my experience has been that CDPs benefit most from it.
otherwise, I'd audition at length before buying an external DAC; the modded Sony is already up there with the best digital (I have a Kern-modded SCD-1)
otherwise, I'd audition at length before buying an external DAC; the modded Sony is already up there with the best digital (I have a Kern-modded SCD-1)