ESC
SA-7500 MKII

SA-7500 MKII

BrandPioneer
FunctionAmplifier, Integrated
Produced1976
CountryJapan
Form FactorStandard Width
Signal PathAnalog Hardware
Dimensions380 x 139 x 308mm
Weight9.1kg
AccessoriesConnecting cord with pin plugs
AccessoriesHex. Wrench (Used for fastening Volume knob)
Circuitry2-stage differencial amplifiers Parallel PP direct-coupled OCL.
Continuous power output, 20 Hz to 20kHz (both channels driven)50 watts per channel (4 ohms)
Continuous power output,1000 Herts (both channels driven)45 watts per channel (8 ohms)
Damping factor (20Hz~20kHz, 8 ohms)30
Frequency response20Hz to 20kHz (Phono (RIAA equalization))
Frequency response10Hz to 40kHz (Tuner, Aux, Tape play)
Filter (Low)15kHz (6dB/oct)
Hum and noise (IHF, short circuited A network)73dB (Phono)
Hum and noise (IHF, short circuited A network)95dB (Tuner, Aux, Tape PB)
Input sensitivity / Impedance150mV/50k ohms (Aux; Tape Play 1, Tape Play 2, Tuner)
Input sensitivity / Impedance2.5mV/50k ohms (Phono)
Intermodulation Distortion< 0.1% (Continuous rated power output)
Intermodulation Distortion< 0.05% (1 watt per channel power output, 8 ohms)
Intermodulation Distortion< 0.05% (23 watts per channel power output, 8 ohms)
Loudness contour+6dB (100Hz), +3dB (10kHz) (Volume control set at -40dB position)
Output level / Impedance150mV (Tape Rec 1&2)
Phono Overload level (THD.0.1%)200mV (1kHz) (Phono)
Power consumption135 W
Semiconductors:2 x FET(s), 26 x transistors, 17 x diodes
Tone control (Bass)+9dB, -8dB (100Hz)
Tone control (Treble)+89dB, -6dB (10kHz)
Total Harmonic Distortion from 20Hz to 20kHz from Aux< 0.1% (Continuous rated power output)
Total Harmonic Distortion from 20Hz to 20kHz from Aux< 0.05% (1 watt per channel power output, 8 ohms)
Total Harmonic Distortion from 20Hz to 20kHz from Aux< 0.05% (23 watts per channel power output, 8 ohms)
Channels2 Channel
Connections
  • AC Outlet 1 (Switched) · Other
  • AC Outlet 2 (Switched) · Other
  • AC Outlet 3 (Unswitched) · Other
  • AC Outlet 4 (Unswitched) · Other
  • Aux · RCA (Phono, Cinch) · Socket (Female), Stereo
  • GND · Binding Post
  • Headphone · 1/4" Phone Jack (6.35mm) · Socket (Female), Stereo
  • Microphone · 1/4" Phone Jack (6.35mm) · Socket (Female), Stereo
  • Phono · RCA (Phono, Cinch) · Socket (Female), Stereo
  • Speakers (A) · Binding Post · Stereo
  • Speakers (B) · Binding Post · Stereo
  • Tuner · RCA (Phono, Cinch) · Socket (Female), Stereo
  • Tape 1 (PB) · RCA (Phono, Cinch) · Socket (Female), Stereo
  • Tape 1 (rec) · RCA (Phono, Cinch) · Socket (Female), Stereo
  • Tape 2 (PB) · RCA (Phono, Cinch) · Socket (Female), Stereo
  • Tape 2 (rec) · RCA (Phono, Cinch) · Socket (Female), Stereo
Controls
  • Balance · Rotary Pot
  • Bass · Rotary Pot
  • Function (source) · Rotary Pot with Switch · Phono / Tuner / Aux
  • Loudness · Toggle Switch
  • Low Filter · Toggle Switch · 0 / 15Hz
  • Mode · Rotary Pot with Switch · Stereo / Mono
  • Power · Toggle Switch
  • Speakers · Rotary Switch · Off / A / B / A+B
  • Tape Monitor · Toggle Switch · 1 / Source / 2
  • Tape Duplicate · Toggle Switch · 1>2 / Off / 2>1
  • Tone · Toggle Switch · On / Off
  • Treble · Rotary Pot
  • Volume · Rotary Pot
  • Tape 2 Monitor · Toggle Switch
  • Tape Duplicate · Toggle Switch · on / off