PS Audio Signature Mono Amplifiers (Pair, Silver) A Stunning Achievement in Power Amplification - This is Bascom H. King's finest work, unequaled in performance at any price. The Make or Break Component in Your Music Reproduction Chain - Everything in your system funnels into this critical component; anything lost can never be recovered. Combines a Pair of Vacuum Tubes on its input with a Double Set of Parallel MOSFET outputs capable of 300 watts in 8, 600 into 4, and more than 1,000 watts into 2. Drive Any Loudspeaker to Musical Perfection with this Signature 300 Monoblock power amplifier pair. This Amplifier is Unmatched in terms of sheer musicality, openness, tonal richness and accuracy. A jaw dropping performance.