Air Tight ATM-1S
Hallmark of 20th Anniversary - Final Version of the Legendary ATM-1! The ultimate circuit configuration reflecting a comprehensive survey of 20-year accumulated studios on the EL34 (6CA7) valves.
Features
The orthodox circuitry composed of Mullard phase inverter with NFb under UL connection reproduces the sublime teble with second-to-none musicality inherent in the accumulated EL34 valve.
A hefty headroom in output capability achieved by a newly-developed transformer boasting of 60W handling capacity ensures stable operation for a long-time use.
Bias adjustment facilities (meter, switch & pots) provided for easy service-accessibility.
Retained unchanged are those outstanding features such as point-to-point manual wirings without PCB, CD-direct input, full OFC wiring, etc.
SPECIFICATIONS
Valves Used 6CA7 x 4
12AU7 x 2
12AX7 x 1
Rated Output 36 W + 36 W (8 ohms)
THD below 0,1% (1kHz, 1W), below 1% (1kHz, 3W)
Frequency response 20Hz - 20,000Hz (± 1dB, 36W)
Input Sensitivity 1 V
Input Impedance 100k Ohms
S/N Ratio 100 dB (IHF-A Curve, input-shorted)
Load Impedance 4 ohms, 8 ohms
Power Consumption about 250W
Dimensions (w x d x h) 368mm x 293mm x 231mm
Weight 22 kgs
