Air Tight - ATC 1

Air Tight ATC-1 Preamplifier features:

  • Highly reliable 12AX7 valves meticulously selected after ageing
  • 3-stage low-impedance K-K-NF configuration equalizer acclaimed for low distortion and wide frequency response
  • Simple, single-stage flat amp for pure sound
  • High-voltage B-power supply with quick recovery diode
  • PCB-free hand wiring
  • Discrete, highly rigid dia-magnetic chassis
  • EL-core power transformer
Valves employed:
12AX7(ECC83) × 5
Output voltage:
rated 2V, max. 15V
Output impedance:
600 ohms (pre-out, EQ-out)
THD:
0.05% (phono), 0.02% (line)
Input sensitivity:
phono; 1.8mV(output 1V), line; 150mV (output 1V)
S/N ratio:
less than 85dB (phono) & 98dB(line)
Dimensions:
430(W) × 325(D) × 90(H)mm
Weight:
7kgs