Unison Research · Integrated Amplifiers
Simply 845
Simply 845 is a single-chassis tube amplifier using 845 direct-heated triodes, Class A operation, and 4 line-level inputs.
fig. 01 · integrated amplifiers
Simply 845
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From Unison Research
Simply 845 uses 845 direct-heated triodes in a single-ended Class A amplifier circuit. It combines preamplifier and power-amplifier sections in one chassis, with 4 line-level inputs, rear-mounted gold-plated connectors, 6 ohm speaker output, and 20 Hz to 50 kHz bandwidth.
Specifications
| Class | Pure class A |
|---|---|
| Output stage topology | Single-ended |
| Bandwidth | 20Hz-50kHz, +0dB; -1dB @ 12W |
| Feedback level | 14 dB |
| Output impedance | 6 Ω |
| Input impedance | 47 kΩ/100pF |
| Inputs | 4 line level |
| Dimensions | 37 cm x 26cm x 57 cm (LxHxD) 14 1/2 x 10 1/4 x 22 1/2 inch |
| Product type | integrated tube amplifier |