Microphone amplifier: | 1 FET, 1 high withstand voltage NPN transistor direct connection circuit |
Input maximum sensitivity / Impedance: | Phono 1 (High Level) - 1.2mV / 33kΩ, 47kΩ, 82kΩ
Phono 1 (Low Level) - 0.06mV / 10Ω, 30Ω
Phono 2 - 1.2mV / 47kΩ
MIC - 0.5mV / 100kΩ
Tuner, AUX 1, 2, 3, Tape 1, 2 Rec / PB (input part) - 110mV / 100kΩ |
Maximum allowable input: | Phono 1 (High Level) - 300mV
Phono 1 (Low Level) - 15mV
Phono 2 - 300mV
MIC - 1200mV |
S / N ratio (A network): | Phono 1 (High Level) - 70dB or more (input 1.2mV)
Phono 1 (Low Level) - 60dB or more (input 0.12mV)
Phono 2 - 70dB or more (Input 1.2mV)
MIC - 50dB or more (Input 1.2mV)
Tuner, AUX 1, 2, 3, Tape 1, 2 Rec / PB (input part) - 90dB or more (Input 110mV) |
Output voltage / Impedance: | Rec Out 1, 2 - 100mV (Up to 80V) / 10kΩ
Center Out - 0.5V / 2.6kΩ
Headphone - 0.6V (With 8Ω headphones) / 8Ω |
Rec / PB (output part): | 30mV / 82kΩ |
Output 1, 2: | 1V / 3kΩ
0.3V / 6kΩ (Switchable) |
Harmonic distortion factor: | 0.03% or less (At 1 kHz, rated output) |
Intermodulation distortion rate: | 0.05% or less (At rated output, 60 Hz: 7 kHz = 4: 1) |
Frequency characteristics: | Phono 1 and 2 - Deviation from RIAA curve ±0.5dB
MIC - 30Hz to 30kHz, ±2dB
Tuner, AUX 1, 2, 3, Tape 1, 2 Rec / PB (input part) - 10Hz to 100kHz, +0 -2dB |
Tone control: | Bass - 50Hz, 100Hz, ±10dB
Treble - 20kHz, 10kHz, ±10dB (2dB step, 11 steps switching) |
Filters: | Low Filter - 50Hz or less, 12dB / oct.
High Filter - 9kHz or more, 12dB / oct. |
Semiconductor used: | Transistors x 44
FET's x 26
Diodes x 15 |
Supplied: | Connection cord (RK-74) x 2
Connection code (RK-81) x 1
Short plug x 4
Plug (red and white) x 2 each. |
Power outlet total: | 500W (Three interlocking systems, one non interlocking system) |