Set From 1977 Amplifier TOSHIBA SB-420 + Tuner Toshiba ST 420, exelent condition, working good.

Amplifier: Toshiba SB-420

Power output: 42 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 80kHz

Total harmonic distortion: 0.3%

Damping factor: 25

Input sensitivity: 2.5mV (MM), 150mV (line)

Signal to noise ratio: 70dB (MM), 90dB (line)

Output: 150mV (line), 30mV (DIN), 1V (Pre out)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 43 x transistors, 16 x diodes

Dimensions: 450 x 148 x 375mm

Weight: 11.5kg

Tuner: Model: ST-420
Years of manufacture: 1977
Made in: Japan/Color: Silver
Power consumption: 25 W
Dimensions: 450 x 148 x 376 mm (WxHxD)
Weight: 8.3 kg

Technical data

Reception: VHF
Frequencies:
VHF: 87.5 - 107.9 MHz
MW: 525 - 1605 kHz

Input sensitivity:

FM: 1.9µV (IHF)
MW: 300µV (IHF)
Frequency response: 20 Hz - 15 kHz (± 1 dB)
Distortion factor: Mono: 0.2/Stereo): 0.3 ％

Signal-to-noise ratio:
FM: Mono: 72 dB/Stereo: 68 dB
MW: 50 dB
Signal-to-noise ratio: 72 dB
Channel separation: 45 dB
selectivity: FM: 70 dB/MW: 30 dB
Common wave selection: 1.0 dB
Mirror frequency rejection:
FM: 85 dB/MW: 35 dB
IF suppression:
FM: 90 dB/MW: 35 dB
MW suppression: 55 dB

Thanks