Unison Research · Integrated Amplifiers
Sinfonia Anniversary
Sinfonia Anniversary is a dual-mono valve amplifier with KT88 output valves, Class A single-ended parallel operation, and remote volume control.
fig. 01 · integrated amplifiers
Sinfonia Anniversary

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From Unison Research
Sinfonia Anniversary is a dual-mono stereo valve amplifier with 4 KT88 output valves and ECC82/ECC83 input valves. It has 4 line inputs, tape monitor connections, a stereo subwoofer output, IR volume control, and 4 ohm or 8 ohm speaker outputs.
Specifications
| Type | Dual mono Stereo Integrated Valve Amplifier |
|---|---|
| Output stage | single ended parallel ultraliner class A |
| Output power | 29W |
| 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 KT88, 2 x ECC82, 2 x ECC83 Gold Lion |
| Remote control | IR inputs and volume |
| Power consumption | 500W max |
| Product type | integrated dual-mono valve amplifier |



