Onkyo Integra A-755nII/100. Integral Stereo Amplifier. Retro Classic Hi-Fi Vintaje (1975) Made in Japan

Vintaje Classic Series Hi-Fi Integrates Amplifier (Original Condition Life a NEW)

Type Pre-main amplifier
Power Amplifier Unit
Rated Output (Both channel drive)
1kHz:
50W + 50W (8 Ω)
55W + 55W (4 Ω)
20 Hz to 20 kHz:
45W + 45W min (8 Ω)
Dynamic Power (1 kHz, 4 Ω)
2 x 160W max
Total harmonic distortion rate (1 kHz) 0.05% or Less (at Rated Output)
0.03% or less (at 10W output)
0.03% or less (at 0.5W output)
Intermodulation Distortion Factor (SMPTE, 70 hz: 7 khz = 4: 1)
0.05% or Less (at Rated Output)
Power Band With (IHF-3dB, THD 0.3%)
10 Hz to 100 kHz
Signal-to-noise ratio (IHF A network, input shunt)
110 dB or more
Damping factor (DC ~ 20 kHz)
8 Ω: 60
4 Ω: 30
Load impedance:
4 Ω ~ 16 Ω
Input impedance (10 Hz to 50 kHz)
100k Ω
Gain 26dB
Rated input voltage (Main-In) 1V
Input-output polarity Inphase
Output terminal Speaker: A, B, A + B switching
Headphone jack
Preamplifier Section
Input Sensitivity / Impedance Phono1: 1.2 mV, 2.4 mV, 4.8mV/50k Ω
Phono2: 1.2 mV, 2.4 mV, 4.8mV/50k Ω
Tuner, AUX1, 2, Tape Play1, 2: 100mV/50k Ω
Total Harmonic Distortion Factor (1 v, 1 khz) Not more than 0.03%
Intermodulation Distortion Factor (1 v, SMPTE, 70 hz: 7 khz = 4: 1) Not more than 0.05%
RIAA deviation (Phono1, 2, 30 Hz-15 kHz) 0.5 dB or less
Phono Maximum Allowable Input (1kHz/10kHz (RMS)) 250mV/1100mV (Sensitivity 2.4 mv, THD 0.1%)
S/N (IHF A network) Phono1, 2: 75 dB or more
Tuner, AUX1, 2, Tape Play1, 2: 90 dB or higher
Output voltage Pre Out (100k Ω load) : Rated 1 v, maximum 4 v
Tape Rec1, 2: Rated at 100 mv
Output impedance Pre Out: 2.7k Ω
Tape Rec1, 2: 12k Ω
Tone control Treble at 2 kHz turnover: 10 dB at 10 kHz
Bass at a turnover of 400 Hz: 10 dB at 100 Hz
Turnover frequency Treble: 2 khz, 8 khz, Defeat
Bass: 400 Hz, 125 Hz, Defeat
Loudness (at volume -30dB) + 5dB (70Hz)
Filter High-Filter: 5 kHz, 20 kHz, 6dB/oct.
Low-Filter: 10 Hz, 30 Hz, 6dB/oct.
Muting -20dB
Input-output polarity EQ Amp: Same Phase
Tone + Buffer Amp: In-phase
Transient killer action At SW-On: Approximately 4 seconds
At SW-Off: Start from 0.5 seconds

Semiconductor used Transistor: 37 Nos.
Diode: 29 units
Pwer 100 VAC, 50Hz/60Hz
AC Output Switched: 2 systems, 200 VA
Unswitched: 1 line, 200 VA
Power consumption Electrical Appliance and Material Control Law Standard: 130W
Maximum power consumption: 350W
External dimensions Width 467x Height 161x Depth 384 mm
Weight 12.8kg
Made In Japan