Thanks for feedback, Schofiel; I'm still a bit confused though...

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Nope, it's all digital domain.

That's what I thought, However I suppose the tuner module puts out an analogue signal, as does the Karma, hence me thinking there's an A-to-D in there somewhere; am I missing something here?

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degradation in audio quality is likely to be caused either by a hardware fault or by a poor rip of an MP3. Don't forget the decoders on the Karma and Car were different.

Ripping is usually done with EAC; all my MP3's play fine on the Karma with excellent quality. I'll have to have my Empeg seen to by your good self, it seems.

Cheers.