VICTOR/JVC A-X5
Made In Japan, 1979

Type Pre-main amplifier
Circuit system Equalizer Amplifier : DC Servo Pair EL-FET Double Connected ICL
Power Amplifier : Super A Full DC Dual FET Cascode-connected ICL High Gain Amplifier

Power Supply Unit : 2 independent power supply all stages direct power supply system
Effective output (Tuner, Aux, Tape → Spout) 70W + 70W (8 ohm, 20 hz to 20 khz, THD0.007%)
73W + 73W (8 ω, 1 khz, THD0.0008%, By HP ・ IB Audio Analyze System)
Total harmonic distortion factor
(8 Ω at effective output)
Tuner, Aux, Tape → Spout :

Phono → Spout : 0.007% (20 Hz to 20 kHz)
0.0008% (1 kHz, By HP / IB Audio Analyze System)
0.02% (20 Hz to 80 kHz)
0.008% (20 Hz to 20 kHz, Vol-30dB)
Cross modulation distortion factor 0.004% (60 Hz : 7 kHz = 4 : 1, effective output, 8 Ω, Tuner/Aux/Tape → Spout)
Switching distortion 0
TIM Distortion 0(LPF fc=100kHz)
Output bandwidth 5 Hz ~ 70 kHz (IHF, both channel operation, 8 Ω, THD0.02%, Tuner/Aux/Tape → Spout)
Frequency characteristic DC ~ 100 kHz + 0 -3dB (8 Ω, Tuner/Aux/Tape → Spout)
Damping factor 75 (1 khz, 8 Ω, Tuner/Aux/Tape → Spout)
Input Sensitivity / Impedance
(1kHz) Phono1/2 mm : 2.5mV/47k Ω
Phono1/2 mc : 200 μ V/100 Ω
Tuner, Aux, Tape1/2 : 200mV/47k Ω
Signal-to-noise ratio
Phono MM:

Phono MC:

Tuner, Aux, Tape : 85 dB (IHF-A, short circuit)
82 dB (new IHF)
69 dB (IHF-A, short circuit)
75 dB (new IHF)
110 dB (IHF-A, short circuit)
85 dB (new IHF)
Tone control Bass : ± 8 dB (100 Hz)
Treble : ± 8 dB (10 kHz)
Subsonic filter 18 Hz, -6dB/oct. (Equalizer Subsonic)
Loudness (Vol-30dB) + 6 dB (100 Hz), + 4 dB (10 kHz)
Muting -20dB
Equalizer amplifier section (Phono → Rec out)
Phono maximum allowable input
(1 kHz, THD0.005%) MM:250mV
MC:18mV
RIAA deviation 20 Hz to 20 kHz ± 0.2 dB
Total harmonic distortion factor
(20 hz to 20 khz at 10 v output) MM:0.005%
MC:0.02%
Rec Output Voltage / Impedance 200mV/1k Ω
Power outlet Switched : two systems
Unswitched-One system
Pwer 100 VAC, 50Hz/60Hz
Power consumption 160W (Electrical Appliance and Material Control Law Standard)
External dimensions Width 450x Height 139x Depth 422 mm
Weight 11.5kg