| Manufactured by: |
McIntosh Laboratory Inc,
2 Chambers Street Binghamton, NY |
| Price when new (in the USA): |
$249.50 |
| Power output: |
50 watts continuous,
90 watts intermittent |
| Efficiency: |
60% at 50 watts; 76% at 90 watts |
| Gain: |
40dB minimum, 95dB maximum (pre-amp &
transformer) |
| Intermodulation
distortion: |
less than 1.0% if instantaneous
peak power is below 100 watts |
| Frequency response: |
20 - 20kHz ± 0.1dB; 10 - 100kHz
± 3dB |
| Noise
& hum: |
90dB below rated output,
70dB with preamplifier |
| Output impedance: |
4, 8, 16, 32 or 600
(balanced) |
| Damping factor: |
10 or better (for 4, 8, 16 & 32 ohms),
17 for 600 ohms |
| Input impedance: |
100k
(20 - 40kHz); with input transformer 50, 250 or 600k |
| Tubes: |
2 x 6L6G/1614 output, 1 x 12AX7 (preamplifier
and phase inverter), 2 x 6J5 (driver), 2 x 5U4 (rectifier) |
| Dimensions: |
6¾ x 8¼
x 5¼ (171.45 x 130 x 133mm) |
