CLASSIC UNISON RESEARCH CRAFTSMANSHIP Part of Unison Research's classic line of tube amplifiers that include the Preludio and the Performance, the Sinfonia integrated amplifier retains the technical approach, sound and beautiful aesthetics found in the rest of the line. While the Sinfonia offers both stunning looks and equally stunning sound, it is also extremely reliable due to its unique design solutions, quality materials and the highest of build quality standards. Beautiful Hand-Turned Control Knobs Separate 8Ω and 4Ω Gold-Plated 5-Way Binding Posts Type: Dual Mono Stereo Integrated Valve Amplifier Output Stage: single ended parallel ultraliner A class Output Power: 25W Inputs: 4 x line, 1 x tape Input Impedance: 47 kOhm Outputs: 1 x tape, 1 x subwoofer, loudspeakers bi-wiring Output Impedance: 4 – 8 ohm Feedback factor: 14dB Frequency Response: 20 – 30000 Hz Valves: 4 x 6550 or KT88, 2 x ECC82, 2 x ECC83 Remote Control: IR inputs and volume Power Consumption: 500W max Dimensions: 17.3 w x 16.5 d x 8.3 h in. Weight: 55 lbs. Ask about our trade-in program SHIPPING: The shipping weight of the Unison Sinfonia is 55 lbs. Shipment by FEDEX Home Delivery/Insured is FREE if your delivery addresses is within the 48 continental states. If your delivery address is in Alaska, Hawaii, Canada or other location outside of the USA, please call (480) 607-2277) or email [email protected] to determine the shipping cost and to place your order. Duties, taxes and fees on shipments to destinations outside of the USA are NOT included in the price.