AirTight ATM-211
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AirTight ATM-211

Mono Power Tube Amplifier 1*211 1*22W

AirTight ATM-211
AirTight ATM-211
Ebullition of affluent power sensation
- Unprecedented high power 22W derived from broadcast-oriented 211 valve with direct-coupled cathode-follower stage
- All-stage triode-driven non-NF Class-A operation to achieve pure,unimpaired sound
- Independently coiled transformer for amp-stage, bias, heater & relay circuits to remove mutual interferences
- DC-driven heater filament to eliminate hum of output valve
- Relay-activated muting circuit for long life of electrolytic capacitor
- Bias meter to check operation status of output valve

- Valves employed: 211 × 1, 12AX7 × 1, 12BH7A × 1
- Rated output: 22W (8 ohms)
- Frequency response: 20 — 20kHz (1dB, 22W)
- Input impedance: 100kohms
- Dimensions: 390(W) × 360(D) × 260(H)mm
- Weight: 26kgs