ESC
SA-9500

SA-9500

BrandPioneer
FunctionAmplifier, Power
Produced1976
CountryJapan
Form FactorStandard Width
Signal PathAnalog Hardware
Dimensions420 x 165 x 403mm
Weight17.2kg
PowerAC 120V 60Hz or 220V 50/60 Hz or 120, 220 and 240V (switchable) 50/60 Hz
Frequency Response10Hz to 80kHz
AccessoriesConnecting cord with pin plugs
AccessoriesJack covers (input, output)
AccessoriesHex. Wrench (used for fasting volume knob)
Attenuator0,-15dB, -30dB
Circuitry1-stage differencial amplifiers. Parallel push-pul, direct coupled OCL. direct-coupled OCL
Circuitry (Preamplifier section)2-stage direct-coupled with 1 FET, NFB type (Control amplifier)
Circuitry (Preamplifier section)3-stage direct-coupled class-A SEPP type with 1st stage differencial amplifier (Equalizer amplifier)
Continuous Power Output, 20Hz to 20kHz (both channels driven)100 watts per channel (4 ohms)
Continuous Power Output, 20Hz to 20kHz (both channels driven)80 watts per channel (8 ohms)
Continuous Power Output,1000Hz (both channels driven)110 watts per channel (4 ohms)
Continuous Power Output,1000Hz (both channels driven)85 watts per channel (8 ohms)
Damping factor30 ((20 herz to 20kHz, 8 ohms))
Filter (High)8kHz, 12kHz (12dB/oct)
Filter (Low)15Hz, 30Hz (12dB/oct)
Frequency response30Hz to 15kHz (Phono (RIAA equalization))
Frequency response7Hz to 40kHz (Tuner, Aux, Tape PB)
Hum and noise (IHF, short-circuited, A network)100dB
Hum and noise (IHF, short circuited A network)>65dB (Micro)
Hum and noise (IHF, short circuited A network)>70dB (Phono 1, Phono 2)
Hum and noise (IHF, short circuited A network)>90dB (Tuner, Aux, Tape PB 1&2)
Input sensitivity1v/50k ohms (Power amp in)
Input sensitivity / Impedance150mV/50k ohms (Aux 1, Aux 2, Micro, Tuner, Tape PB 1&2)
Input sensitivity / Impedance2.5mV/50k ohms (Phono 1)
Input sensitivity / Impedance2.5mV ti 10mV/35k ohms, 50k ohms, 70k ohms, 100k ohms (Phono 2)
Intermodulation Distortion< 0.1% (Continuous rated power output)
Intermodulation Distortion< 0.05% (1 watt per channel power output, 8 ohms)
Intermodulation Distortion< 0.05% (40 watts per channel power output, 8 ohms)
Output level / Impedance2V/1k ohms (Pre out)
Output level / Impedance150mV (Tape Rec 1&2)
Phono Overload level (T.H.D.0.01%)200mV (1kHz) (Phono 1)
Phono Overload level (T.H.D.0.01%)250mV to 500mV (1kHz) (Phono 2)
Power consumption310W
Power consumption370W (120V model only)
Semiconductors2 x FET(s), 54 x transistors, 26 x diodes
Tone control (2dB step) (Bass)+-10dB (25Hz/50Hz/100Hz) (Turnover frequency 100Hz / 200 Hz / 400 Hz)
Tone control (2dB step) (Treble)+-10dB (8kHz, 16kHz, 32kHz)) (Turnover frequency 2kHz / 4kHz / 8kHz)
Total Harmonic Distortion from 20Hz to 20kHz< 0.1% (Continuous rated power output)
Total Harmonic Distortion from 20Hz to 20kHz< 0.05% (1 watt per channel power output, 8 ohms)
Total Harmonic Distortion from 20Hz to 20kHz< 0.05% (40 watts per channel power output, 8 ohms)
Channels2 Channel
Connections
  • AC Outlet 1 (Unswitched, 100W max) · Other
  • AC Outlet 2 (Switched, 100W max 2&3) · Other
  • AC Outlet 3 (Switched, 100W max 2&3) · Other
  • Aux 1 · RCA (Phono, Cinch) · Socket (Female), Stereo
  • Aux 2 · RCA (Phono, Cinch) · Socket (Female), Stereo
  • GND 1 · Binding Post
  • GND 2 · Binding Post
  • Headphone · 1/4" Phone Jack (6.35mm) · Socket (Female), Stereo
  • Microphone · 1/4" Phone Jack (6.35mm) · Socket (Female), Stereo
  • Phono 1 · RCA (Phono, Cinch) · Socket (Female), Stereo
  • Phono 2 · 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
  • Tape 2 (rec/PB) · DIN · Socket (Female), Stereo
Controls
  • Attenuator · Toggle Switch · 0dB, -15dB, -30DB
  • Balance · Rotary Pot
  • Bass · Rotary Pot
  • Bass Turn Over Switch · Rotary Pot with Switch · 100Hz, 200Hz, 400Hz
  • Filter (High) · Toggle Switch · 12kHz / Off / 8kHz
  • Filter (Low) · Toggle Switch · 15Hz / Off / 30Hz
  • Function (source) · Rotary Pot with Switch · Phono1 / Mic/Phono2 / Tuner / Aux1 / Aux 2
  • Mode · Rotary Pot with Switch · Stereo Rev / Stereo Norm / Mono L+R / Mono L / Mono R
  • Power · Toggle Switch
  • Speakers · Rotary Switch · Off / A / B / A+B
  • Tone · Toggle Switch · On / Off
  • Treble · Rotary Pot
  • Treble · Rotary Pot with Switch · 2kHz, 4kHz, 8kHz
  • Volume · Rotary Pot
  • Tape Monitor · Toggle Switch · 1 / Source / 2
  • Tape Duplicate · Toggle Switch · On / Off
  • Phono 2 Impedance (Rear panel) · Rotary Pot with Switch · 35 / 50 / 70 / 100KU
  • Phono 2 MIC Level (Rear panel) · Rotary Pot · -12 to OdB