Features and Functions 4-Channel, Class-AB, Competition Audiophile Amplifier Signal to noise ratio of over 110dB Coupled the output drivers Highest HFE (Gain) Sanken selected output devices Deferentially balanced input stage 0.1% resistors for lowest possible noise floor TI LME49720 (BJT) op-amps on the inputs TI LME49720 (BJT) op-amps in the signal path WIMA MKS2 series caps in the signal path Extremely low ESR caps throughout Proprietary patented RCA connectors Specifications Power @ 4Ω: 4 x 150 watts Power @ 2Ω: 4 x 250 watts Power @ 4Ω Bridged: 2 x 500 watts THD @ Rated Power < 0.05% Signal to Noise Ratio > 110dB Frequency Response 10Hz to 30,000Hz ±1dB Input Sensitivity 1v to 9v Dimensions in mm: 190(W) x 62(H) x 444(L) Overall: 190(W) x 62(H) x 479(L)