Got my Marantz PM 7005 today, totally stoked! The USB DAC sounds better than my old Maverick Audio Tube Magic D1 and there is no background noise. Asynchronous USB seems to be very well worth the money. The amp itself sounds great as well! The soundstage is alot wider than my old Yamaha, the bass is precise but not weak and the treble is alot clearer. Still hate connecting the cables to the speakers though.