Krell Evolution505 CD/SACD player + Audio Research SL15(Preamp.) + SD135(Amp.) + B&W 801s

B&W Nautilus 801's need a 50~1000 W amplifier, known as a hardest droven speakers. But Audio Research SD135 drives them well! In the combination, Krell Evolution 505 CD/SACD player takes a great and important role!