Pioneer

SX-424/FW

Receiver

Main Details
Maker Pioneer Brand
Function
Channels/Tracks
  • 2 × Channel
Form Factor Standard Width
Signal Path Analog Hardware
Made In Japan
Date Produced 1972-1974
Dimensions
(H × W × D)
Weight 17.4lbs
Power Source 110/120/130/220/240VAC, 50/60Hz 90W (Max)
Frequency Response 20Hz-70kHz ±3dB
Notes General export model with FM de-emphasis switch
Additional Specifications
Output Power (1kHz, Both Channels Driven, 8/4Ω) 12/13W
Output Power (1kHz, Single Channel Driven, 8/4Ω) 14/18W
Output Power (Music, IHF, 8/4Ω) 37/50W
THD (Continuous Power Output) 1%
IMD (Continuous Power Output) 1%
Power Bandwidth (IHF, 8Ω, 1% THD) 20Hz-45kHz
Damping Factor (8Ω, 1kHz) 40
Input Sensitivity (Phono, Mag) 3mV
Input Impedance (Phono, Mag) 50kΩ
Input Sensitivity (Mic) 6.5mV
Input Impedance (Mic) 50kΩ
Input Sensitivity (Aux) 180mV
Input Impedance (Aux) 100kΩ
Input Sensitivity (Tape) 180mV
Input Impedance (Tape) 100kΩ
Input Sensitivity (Tape DIN) 180mV
Input Impedance (Tape DIN) 100kΩ
Output Voltage (Tape) 180mV
Output Voltage (Tape DIN) 36mV
SNR (Phono) 75dB
SNR (Aux) 85dB
Tuning Range (FM) 88MHz-108MHz
Usable Sensitivity (FM, IHF) 2.3µV
Capture Ratio (IHF) 3.5dB
Image Rejection (FM, 98MHz) 50dB
IF Rejection (FM, 90MHz) 80dB
Spurious Rejection (98MHz) 70dB
AM Suppression 45dB
SNR (FM) 65dB
THD (Mono) 0.6%
THD (Stereo) 0.8%
Stereo Separation (1kHz) 40dB
Sub-Carrier Suppression 35dB
De-Emphasis 50µsec, 75µsec
Tuning Range (AM) 525kHz-1605kHz
Usable Sensitivity (AM, IHF) 15µV
Image Rejection (AM, 1000kHz) 45dB
IF Rejection (AM) 35dB
SNR (AM) 50dB

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