ESC
CR-820/E

CR-820/E

BrandYamaha
ManufacturerNippon Gakki Co. Ltd.
FunctionReceiver
Produced1976-1979
CountryJapan
Form FactorStandard Width
Signal PathAnalog Hardware
Dimensions48.8 × 14.6 × 39.6 cm (W × H × D)
Weight26.8lbs
Power110/120/130/220/230/240VAC, 50/60Hz 400W
Frequency Response20Hz-20kHz ±0.5dB
Output Power (20Hz-20kHz, 0.05% THD, 8/4Ω)50/60W
Output Power (1kHz, 0.05% THD, 8/4Ω)60/70W
Power Bandwidth10Hz-50kHz
Damping Factor (1kHz, 8Ω)40
THD0.05%
Input Sensitivity (Phono 1/2, 1kHz)2mV
Input Level (Phono, Max)120mV
Input Impedance (Phono 1/2, 1kHz)50kΩ
Input Sensitivity (Aux)120mV
Input Impedance (Aux)45kΩ
Input Sensitivity (Tape)120mV
Input Impedance (Tape)45kΩ
Output Level (Rec. Out, Phono)120mV
Output Impedance (Rec. Out, Phono)220Ω
Output Level (Rec. Out, Tuner)120mV
Output Impedance (Rec. Out, Tuner)6kΩ
Output Level (Rec Out, Max)9V
Output Level (DIN Out)30mV
Output Level (DIN Out, Max)1V
Output Impedance (DIN Out)52kΩ
Frequency Response (Phono, RIAA Deviation)±0.5dB
Frequency Response (Aux)20Hz-20kHz ±0.5dB
Frequency Response (Tape)20Hz-20kHz ±0.5dB
SNR (Phono, IHF A Network)78dB
SNR (Aux, IHF A Network)97dB
SNR (Tape, IHF A Network)97dB
Residual Noise (IHF A Network)0.12mV
THD (Phono)0.012%
THD (Phono, 1kHz, 50W/8Ω)0.1%
THD (Aux, 25W/8Ω)0.02%
THD (Tape, 25W/8Ω)0.02%
Tuning Range (FM)87.6MHz-108MHz
Usable Sensitivity (FM, 98MHz, IHF, Mono, 300Ω)1.8µV (10.3dBf)
Usable Sensitivity (FM, 98MHz, IHF, Mono, 75Ω)0.9µV (10.3dBf)
Usable Sensitivity (FM, 98MHz, DIN, Mono)1.5µV (SNR: 26dB)
Usable Sensitivity (FM, 98MHz, DIN, Stereo)50µV (SNR: 46dB)
Sensitivity (FM, 50dB Quieting, Mono)3.2µV (15.3dBf)
Sensitivity (FM, 50dB Quieting, Stereo)40µV (37.2dBf)
SNR (FM, Mono)77dB
SNR (FM, DIN, Mono)71dB
SNR (FM, Stereo)73dB
SNR (FM, DIN, Stereo)67dB
Image Interference Ratio (FM, 98MHz)90dB
IF Interference Ratio (FM, 98MHz)85dB
Spurious Interference Ratio (FM, 98MHz)100dB
Amplitude Suppression Ratio (IHF)65dB
Capture Ratio1dB
Effective Selectivity (FM)75dB
Effective Selectivity (FM, DIN)52dB
THD (FM, Mono, 100Hz)0.1%
THD (FM, Mono, 1kHz)0.1%
THD (FM, Mono, 6kHz)0.2%
THD (FM, Stereo, 100Hz)0.15%
THD (FM, Stereo, 1kHz)0.15%
THD (FM, Stereo, 6kHz)0.3%
Cross Modulation Distortion (Mono, IHF)0.05%
Cross Modulation Distortion (Stereo, IHF)0.15%
Stereo Separation (FM, 50Hz)30dB
Stereo Separation (FM, 1kHz)40dB
Stereo Separation (FM, 10kHz)30dB
Frequency Response (FM, ±0.3dB)50Hz-10kHz
Frequency Response (FM, +0.5/-1dB)30Hz-15kHz
Frequency Response (FM, +0.5/-3dB)10Hz-18kHz
Sub Carrier Suppression60dB
Tuning Range (AM)525kHz-1605kHz
Usable Sensitivity (AM, IHF)316µV/m (49dB/m)
Selectivity (1kHz)30dB
SNR (AM, 80dB/m)50dB
Image Interference Ratio (AM, 1kHz)55dB
IF Interference (AM, 1kHz)40dB
Spurious Interference Ratio (AM, 1kHz)55dB
THD (AM, 80dB/m)0.4%
Output Level (FM, 100% Modulation)450mV
Output Impedance (FM, 100% Modulation)6.5kΩ
Output Level (AM, 30% Modulation)120mV
Output Impedance (AM, 30% Modulation)6.5kΩ
Channels2 Channel
NotesEuropean market specific model. Power supply and back panel differs between variants. Case smaller than US, Canada, Australia and General export models. Addition of DIN connections.