Винтидж усилвател с много добра изработка.
Разполаага с голямо захраннване, с по 4 транзисора на канал (черни и зелени).
2 входа за грамофини.
Има и 2 бушона.

Manufacturer: Toshiba
Model: SB-420
Type: Integrated amplifier
Years of manufacture: 1976 - 1980
Made in: Japan
Color: Silver
Remote control: no
Power consumption: 340 W
Dimensions: 450 x 148 x 375 mm (WxHxD)
Weight: 11.5 kg

Technical Data
Continuous power (at distortion factor):
8 Ohm: 2x 42 W (RMS, 20 - 20'000 Hz, 0.3 %).
4 Ohm: 2x 50 W
Frequency response:
Phono: 30 - 15'000 Hz, ± 0,2 dB
High level: 10 - 50'000 Hz (+ 0 dB, - 1 dB)

Tone control:
Bass: ± 10 dB at 100 Hz

Tilt frequencies: 200 Hz, 400 Hz
Treble: ± 10 dB at 10 kHz
Tilt frequencies: 2.5 kHz, 5 kHz

Loudness: + 8.5 dB at 100 Hz, + 3.5 dB at 10 kHz
Low Filter: - 6 dB / octave at 20 Hz
High Filter: - 6 dB / octave at 8 kHz
Mute: yes, - 10 dB, - 20 dB

Special FeaturesMicrophone Mixer
Tape Dubbing