Onkyo

A-7055

Amplifier, Integrated

Main Details
Maker Onkyo Brand
Function
Channels/Tracks
  • 2 × Channel
Form Factor Standard Width
Signal Path Analog Hardware
Made In Japan
Date Produced 1974
Dimensions 423 x 136 x 358mm
Weight 9.3kg
Power Source AC 110/120/220/240V, 50Hz/60Hz
Additional Specifications
AMPLIFIER : Damping factor 80
AMPLIFIER SECTION : Frequency Response 10Hz to 70kHz +0, -1dB
AMPLIFIER SECTION : Input Impedance 100kΩ
AMPLIFIER SECTION : Intermodulation Distortion 0.05% Rated power output
AMPLIFIER SECTION : Load Impedance 4-16Ω
AMPLIFIER SECTION : Power Bandwith (IHF) 10-100kHz -3dB, THD 0.2%
AMPLIFIER SECTION : Power Output 45W / 45W Continuous, each channel driven, 4Ω
MPLIFIER SECTION : Power Output 33W / 33W Continuous, each channel driven, 8Ω
MPLIFIER SECTION : Power Output 36W + 36W Continuous, both channels driven, 4Ω
MPLIFIER SECTION : Power Output 26W + 26W Continuous, both channels driven, 8Ω
AMPLIFIER SECTION : Power Output (IHF) 125W Dynamic, 4Ω
AMPLIFIER SECTION : Power Output (IHF) 82W Dynamic, 8Ω
AMPLIFIER SECTION : Rated Input 1V
AMPLIFIER SECTION : Signal to Noise Ratio (IHF) 110dB A network
AMPLIFIER SECTION : Total Harmonic Distortion 0.03% 10W Output
AMPLIFIER SECTION : Total Harmonic Distortion 0.1% Rated power output
PRE AMPLIFIER SECTION : Input Sensitivity / Impedance 1/2:1.2/2.4/4.8mV / 50kΩ Phono
PRE AMPLIFIER SECTION : Input Sensitivity / Impedance 100mV / 100kΩ Tuner, Aux, Tape
PRE AMPLIFIER SECTION : Intermodulation Distortion < 0.05% At rated output
PRE AMPLIFIER SECTION : Total Harmonic Distortion from 20Hz to 20kHz < 0.03% At rated output
PRE AMPLIFIER SECTION : High Filter 7kHz 6dB/oct
PRE AMPLIFIER SECTION :Low Filter 30Hz 6dB/oct
PRE AMPLIFIER SECTION : Frequency Response 10Hz to 70kHz Tuner, Aux (+0,-1dB)
PRE AMPLIFIER SECTION : Frequency Response 30Hz to 15kHz Phono1, Phono2 (+-0.5dB)
PRE AMPLIFIER SECTION : Loudness Contour +5B (70Hz), +5dB (10kHz)
PRE AMPLIFIER SECTION : Muting -20dB
PRE AMPLIFIER SECTION : Output Voltage 1V 2,2kΩ
PRE AMPLIFIER SECTION : Output Voltage 100mV Rec Out, 10kΩ
PRE AMPLIFIER SECTION : Phono Overload Level (RMS) 230mV 1kHz
PRE AMPLIFIER SECTION : Phono Overload Level (RMS) 1.1V 10kHz
PRE AMPLIFIER SECTION : Signal to Noise Ratio (IHF) 75db Phono1, Phono 2 (A network)
PRE : Signal to Noise Ratio (IHF) 90dB Tuner, Aux, Tape (A network)
Semiconductors 39 transistors, 18 diodes, 2 thermistors
Connections
AC Outlet (switched)
Connector: Other
AC Outlet (switched)
Connector: Other
AC Outlet (Unswitched)
Connector: Other
AC Outlet (Unswitched)
Connector: Other
Aux
Connector: RCA (Phono, Cinch)
Description: Socket (Female), Stereo
GND
Connector: Binding Post
Headphone
Connector: 1/4" Phone Jack (6.35mm)
Description: Socket (Female), Stereo
Microphone
Connector: 1/4" Phone Jack (6.35mm)
Description: Socket (Female), Stereo
Phono
Connector: RCA (Phono, Cinch)
Description: Socket (Female), Stereo
Speakers (A)
Connector: Binding Post
Description: Stereo
Speakers (B)
Connector: Binding Post
Description: Stereo
Tape 1 (play)
Connector: RCA (Phono, Cinch)
Description: Socket (Female), Stereo
Tape 1 (rec)
Connector: RCA (Phono, Cinch)
Description: Socket (Female), Stereo
Tape 2 (play)
Connector: RCA (Phono, Cinch)
Description: Socket (Female), Stereo
Tape 2
Connector: DIN
Description: Socket (Female), Stereo
Tape 2 (rec)
Connector: RCA (Phono, Cinch)
Description: Socket (Female), Stereo
Tuner
Connector: RCA (Phono, Cinch)
Description: Socket (Female), Stereo
Controls
Parameter: Balance
Control Type: Rotary Pot
Parameter: Bass
Control Type: Rotary Pot
Parameter: Function (source)
Control Type: Rotary Pot with Switch
Range: MC/Phono / Tuner / Aux
Parameter: Loudness
Control Type: Toggle Switch
Range: On / Off
Parameter: Monitor Tape 1
Control Type: Toggle Switch
Parameter: Monitor Tape 2
Control Type: Toggle Switch
Parameter: Power
Control Type: Toggle Switch
Parameter: Speakers
Control Type: Rotary Switch
Range: Off / A / B / A+B
Parameter: Tape 1 Monitor
Control Type: Toggle Switch
Parameter: Tape 2 Monitor
Control Type: Toggle Switch
Parameter: Tone
Control Type: Toggle Switch
Range: On / Off
Parameter: Treble
Control Type: Rotary Pot
Parameter: Volume
Control Type: Rotary Pot

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