SX-727/KUW (Rev. 2)


Main Details
Maker Pioneer Brand
  • 2 × Channel
Form Factor Standard Width
Signal Path Analog Hardware
Made In Japan
Date Produced 1972-1974
(H × W × D)
Weight 30.8lbs
Power Source 120VAC, 60Hz 270W (Max)
Frequency Response 7Hz-80kHz ±1dB
Notes UL approved (USA) variant

Serial numbers 3814301 and above.

Protector Unit AWM-011 updated to AWM-027.
Additional Specifications
Output Power (20Hz-20kHz, 0.5% THD, 8Ω) 37W
Output Power (1kHz, Both Channels Driven, 8/4Ω) 40/50W
Output Power (1kHz, Single Channel Driven, 8/4Ω) 48/69W
Output Power (Music, IHF, 8/4Ω) 122/195W
THD (Continuous Power Output) 0.5%
THD (8Ω, 24W) 0.03%
IMD (Continuous Power Output) 0.5%
IMD (8Ω, 24W) 0.03%
Power Bandwidth (IHF, 8Ω, 0.5% THD) 10Hz-60kHz
Input Sensitivity 500mV
Input Impedance 50kΩ
Damping Factor (8Ω, 1kHz) 40
Output Voltage (Preamp) 500mV
Maximum Output Voltage (Preamp) 4V
THD (Preamp) 0.1%
Frequency Response (Preamp) 10Hz-20kHz ±1dB
Input Sensitivity (Phono, Mag) 3mV
Input Impedance (Phono, Mag) 50kΩ
Input Sensitivity (Mic) 2.7mV
Input Impedance (Mic) 50kΩ
Input Sensitivity (Aux) 200mV
Input Impedance (Aux) 100kΩ
Input Sensitivity (Tape) 200mV
Input Impedance (Tape) 100kΩ
Output Voltage (Tape) 200mV
Output Voltage (Tape DIN) 35mV
SNR (Phono) 85dB
SNR (Aux) 95dB
Tuning Range (FM) 88MHz-108MHz
Usable Sensitivity (FM, IHF) 1.8µV
Capture Ratio (IHF) 2.0dB
Selectivity (FM, IHF) 70dB
Image Rejection (FM, 98MHz) 85dB
IF Rejection (FM, 90MHz) 100dB
Spurious Rejection (98MHz) 90dB
AM Suppression 50dB
SNR (FM) 70dB
THD (Mono) 0.3%
THD (Stereo) 0.5%
Stereo Separation (1kHz) 40dB
Sub-Carrier Suppression 50dB
Tuning Range (AM) 525kHz-1605kHz
Usable Sensitivity (AM, IHF) 10µV
Selectivity (AM, IHF) 35dB
Image Rejection (AM, 1000kHz) 80dB
IF Rejection (AM) 75dB
SNR (AM) 50dB
MSRP (1973) $399.95


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