Special Order by Rega The Rega Osiris Reference Integrated Amplifier is a truly advanced engineering marvel. Masquerading as a mere 166 W into 8 Ω (250 W, 4 Ω) amplifier, the Osiris is packed with the accumulated expertise of 32 years in solid-state amplifier design. All this power is housed in a custom machined CNC aluminum case, giving music lovers a no-compromise performance experience. Output Power 162W into 8 Ohms 250W into 4 Ohms Inputs 5x Line-Level RCA 1x Balanced XLR 1x Direct RCA 1x Record Input RCA Outputs (RCA) Record Output Frequency Response (All Inputs) 10Hz (-1.7dB) - 75kHz (-3dB) Sensitivity (XLR) 250mV load 10k Sensitivity (RCA) 220mv load 22k Sensitivity (Direct Input) 220mV load 50k THD+Noise Less than 0.05% (22Hz - 30kHz) Amplifier Gain (Direct Input) 44dB Dimensions (WxHxD) 17.1" (434mm) x 4.8" (122mm) x 13.8" (350mm) Weight 56.5lb (25.6kg) Price includes shipping to most areas of Canada