Part of our 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.

The Unison Research Sinfonia is a highly regarded 27-watt per channel Class-A integrated tube amplifier featuring KT88 valves, delivering a smooth, refined, and powerful sound with exceptional, luxurious Italian design. Known for its excellent dynamics, solid build, and, at times, a slightly higher price point, it acts as a more accessible alternative to the flagship Performance model. 

The Sinfonia once again demonstrated its perfectly musical midrange in spades. There was no hardness or graininess here.

• Type: Dual mono Stereo Integrated Valve Amplifier
• Output Stage: single ended parallel ultralinear class A
• Output Power: 25W
• Inputs: 4 line, 1 tape/monitor
• Input Impedance: 47 kOhm
• Outputs: 1 tape, 1 subwoofer RCA stereo
• Output Impedance: 4 – 8 ohm
• Feedback factor: 14dB
• Bandwidth (-1dB): 20 – 80000 Hz
• Valves: 4 x 6550, 2 x ECC82, 2 x ECC83
• Remote Control: IR inputs and volume
• Power Consumption: 500W max