Audio Research REF3 / REF110 owners...

Are your REF3 and/or REF110 free of any "hiss" or background noise?

I heard the REF3 without the REF110 and it was a dead quiet background. When the REF110 was introduced, there was an audible hiss in quiet moments in the music... this is a concern, but perhaps that particular unit needed some attention.

I didn't mention anything to the dealer b/c I was so blown away by the music, but I couldn't live with any hiss or an unquiet background (don't know the correct terminology).

Thanks