Product Infomation 


 

Air Tight ATM-211 Mono Amplifier features:
 

ㆍUnprecedented high power 22W derived from broadcast-oriented 211 valve with direct-coupled cathode-follower stage
ㆍAll-stage triode-driven non-NF Class-A operation to achieve pure, unimpaired sound
ㆍIndependently coiled transformer for amp-stage, bias, heater and relay circuits to remove mutual interferences
ㆍDC-driven heater filament to eliminate hum of output valve
ㆍRelay-activated muting circuit for long life of electrolytic capacitor
ㆍBias meter to check operation status of output valv
 
 
 
Specification
 
ㆍValves employed : 211×1, 12AX7×1, 12BH7A×2
ㆍRated output : 22W (8ohms)
ㆍFrequency response : 20-20kHz (±1dB, 22W)
ㆍInput impedance : 100kohms
ㆍDimensions : 390(W)×360(D)×260(H)mm
ㆍWeight : 26kgs