Tube Power Amp Reviews

Digital Sources: Theta Miles CD player via S/PDIF output; Benchmark DAC1 D/A converter; Sony Vaio laptop running Vista and Sony Sound Forge 9; M-Audio Fast Track Ultra USB interface.
Power Amplifiers: Pass Labs Aleph 3 & XA30.5, Manley Stingray iTube.
Loudspeakers: Revel Performa F30, Totem Acoustic Forest, Klipsch Palladium PB-17B.
Cables: Digital: Stereovox HDXV coaxial. Interconnect: Sain Line Systems Pure & Reference (both balanced). Speaker: Kimber BiFocal XL. AC: Sain Line Systems Reference.—Erick Lichte