Products < Air Tight
Product Infomation  
Air Tight ATM-211 Mono Amplifier features:
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 and 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 valv

Valves employed : 211×1, 12AX7×1, 12BH7A×2
Rated output : 22W (8ohms)
Frequency response : 20-20kHz (±1dB, 22W)
Input impedance : 100kohms
Dimensions : 390(W)×360(D)×260(H)mm
Weight : 26kgs