Pioneer

SX-1280 (Type KC)

Radio Receiver

Main Details
Maker Pioneer Brand
Function
Channels/Tracks
  • 2 Channel
Form Factor Standard Width
Signal Path Analog Hardware
Made In Japan
Date Produced 1977-1979
Dimensions 6.9"x21.7"x17.3" (HxWxD)
Weight 63lbs
Power Source 120VAC, 60Hz 1000VA (CSA), 1100W (Max)
Frequency Response 5Hz-100kHz +0dB, -1dB
Notes Canada specific model.
Additional Specifications
Power Output (8/4Ω) 185W/180W 4Ω: Current Limited
THD (Rated Output) ≤0.03%
THD (90W, 8Ω) ≤0.01%
THD (1W, 8Ω) ≤0.01%
IMD (Rated Output, 8Ω, 50Hz:7kHz) ≤0.01%
IMD (90W, 8Ω, 50Hz:7kHz) ≤0.0006%
IMD (1W, 8Ω, 50Hz:7kHz) ≤0.005%
Input Sensitivity (Power Amp In) 1V
Input Impedance (Power Amp In) 50kΩ
Damping Factor (20Hz-20kHz, 8Ω) 30
SNR (IHF, Short-Circuited, A Network) 105dB
Input Sensitivity (PHONO 1) 2.5mV
Input Impedance (Phono 1) 50kΩ
Cartridge Load 100pF, 200pF, 300pF, 400pF
Phono Overload Level (1kHz, THD 0.03%) 300mV
Input Sensitivity (Phono 2) 2.5mV
Input Impedance (Phono 2) 50kΩ
Input Sensitivity (Mic) 7.5mV
Input Impedance (Mic) 50kΩ
Input Sensitivity (Aux) 150mV
Input Impedance (Aux) 50kΩ
Input Sensitivity (Tape Play 1) 150mV
Input Impedance (Tape Play 1) 50kΩ
Input Sensitivity (Tape Play 2) 150mV
Input Impedance (Tape Play 2) 50kΩ
Output Level (Tape) 150mV
Output Level (Pre Out) 1V
Output Impedance (Pre Out) 1kΩ
THD (Pre Out, 20Hz-20kHz) ≤0.01%
Frequency Response (RIAA EQ) 20Hz-20kHz ±0.2dB
SNR (Phono, IHF, Short-Circuited, A network) 80dB
Frequency Response (Aux, Tape) 5Hz-80kHz +0dB/-1dB
SNR (Aux, Tape, IHF, Short-Circuited, A network) 95dB
FM Sensitivity (Mono) 9.8dBf 1.7μV
FM Sensitivity (Mono, 50dB Quieting) 14.2dBf 2.8μV
FM Sensitivity (Stereo, 50dB Quieting) 36dBf 34μV
FM SNR (75dBf, Stereo) 74dB
FM SNR (65dBf, Mono) 80dB
FM SNR (65dBf, Stereo) 71dB
FM Distortion (65dBf, 100Hz, Mono) 0.1%
FM Distortion (65dBf, 100Hz, Stereo) 0.2%
FM Distortion (65dBf, 1kHz, Mono) 0.1%
FM Distortion (65dBf, 1kHz, Stereo) 0.15%
FM Distortion (65dBf, 6kHz, Mono) 0.1%
FM Distortion (65dBf, 6kHz, Stereo) 0.2%
FM Capture Ratio 1.0dB
FM Alternate Channel Selectivity 80dB
FM Spurious Response Ratio 100dB
FM Image Response Ratio 90dB
FM IF Response Ratio 110dB
FM AM Suppression Ratio 55dB
FM Muting Threshold 19.2dBf 5μV
FM Stereo Separation (1kHz) 50dB
FM Stereo Separation (30Hz-15kHz) 35dB
FM Subcarrier Product Ratio 65dB
FM SCA Rejection Ratio 65dB
Frequency Response (FM) 30Hz-15kHz +0.2dB/-0.5dB
Input Impedance (Antenna, Balanced) 300Ω
Input Impedance (Antenna, Unbalanced) 75Ω
AM Sensitivity (IHF, Ferrite Antenna) 300μV/m
AM Sensitivity (IHF, External Antenna) 15μV
AM Selectivity 30dB
AM SNR 50dB
AM Image Response Ratio 40dB
AM IF Response Ratio 40dB

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