Усилитель Yamaha AX-397 полностью исправен. Каналы ровные, регуляторы и селекторы не шуршат. Без скрытых нюансов. Любые проверки по запросу.

SPECIFICATIONS

Minimum RMS Output Power (Power Amp. Section)
L/R, 20 Hz to 20 kHz
(0.038% THD, 6 ohms) . . . . . . . . 70 W + 70 W
Dynamic Power Per Channel
8/6/4/2 ohms . . . . . . . . . . . . . . . . . . . . . . . 100/120/140/150 W
Maximum Power Per Channel
1 kHz, 0.7 % THD, 4 ohms . . . . . . . . . . . . . . . . . . . . . . . . . 95 W
IEC Power
1 kHz, 0.019% THD, 8 ohms . . . . . . . . . . . . . . . . . . . . . . . 75 W
Damping Factor /
20 Hz to 20 kHz, SPEAKER-A, 8 ohms . . . . . . . . . 240
Input Sensitivity/Input Impedance
PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 mV/47 k-ohms
CD, etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 mV/47 k-ohms
Maximum Input Signal
Frequency Response
CD, etc. 20 Hz to 20 kHz . . . . . . . . . . . . . . . . . . . . . . 0 0.5 dB
CD/DVD DIRECT AMP ON, 10 Hz to 100 kHz . . . . . 0 1.0 dB
RIAA Equalization Deviation
PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 0.3 dB
Total Harmonic Distortion (20 Hz to 20 kHz)
PHONO MM to REC OUT (3 V) . . . . . . . . . . . . . . . . 0.003 % or less
CD, etc. to SP OUT (42.5 W/8 ohms) . . . . . . . 0.009 % or less
Signal to Noise Ratio (IHF-A Network) /
PHONO MM (Input shorted, 5 mV) . . . . . . . . . . 88 dB or more
CD (CD DIRECT AMP ON, Input shorted, 165mV) . . . . . . 110 dB or more
Tone Control Characteristics
BASS Boost/Cut (20 Hz) . . . . . . . . . . . . . +10 dB/-10 dB
Turnover Frequency . . . . . . . . . . . . . . . . . 350 Hz
TREBLE Boost/Cut (20 kHz) . . . . . . . . . . . . +10 dB/-10 dB