Toshiba SB 404

Data

General

  • Manufacturer: Toshiba
  • Model: SB 404
  • Type: Quadrophonic integrated amplifier
  • Years of manufacture: 1974 - 1976
  • Made in: Japan
  • Color: Wood / Metal Silver
  • Power consumption:
  • Dimensions: 400 x 115 x 280 mm (WxHxD).
  • Weight: 7.5 kg
  • Original price approx.: 1'075 DM


Connections

  • Number of inputs:
    • Phono 1 CC: 30 mV / 70 kOhm, 1.2 V max.
    • Phono 1 MM: 2.5 mV / 47 kOhm, 100 mV max.

Phono 2 MM: 2.5 mV / 47 kOhm, 100 mV max. Tuner: 150 mV / 47 kOhm

    • Aux 1, 2: 150 mV / 47 kOhm
    • 4-channel adapter: 150 mV / 47 kOhm
    • Tape Play 1, 2: 500 mV / 47 kOhm
    • Main In: 500 mV, 37 kOhm
  • Number of outputs:
    • Tape Rec 1, 2: 150 mV

Tape Rec DIN: 30 mV Pre Out: 500 mV

    • 2 headphone outputs (6.3 mm jack each, front/rear): 500 mV, 8 Ohm
    • 2 pairs of speakers


Technical Data

  • continuous power 4-channel (at distortion factor)
    • 8 Ohm: 4x 15 W (20 - 20'000 Hz), 4x 17 W (1 kHz)
    • 4 Ohm:
  • continuous power 2-channel (at distortion factor)
    • 8 Ohm: 2x 26 W
    • 4 Ohm:
  • Dynamic power
    • 8 Ohm:
    • 4 Ohm:
  • Total harmonic distortion: < 0.8 %
  • Attenuation factor: 20
  • Frequency Response:
    • Phono RIAA: 20 - 20'000 Hz, ± 0.5 dB
    • High level: 10 - 55'000 Hz, ± 3 dB
  • Signal-to-noise ratio:
    • Phono MM: 65 dB
    • Phono CC: 70 dB
    • Tuner, Tape: 80 dB
  • Crosstalk attenuation: 50 dB
  • Tone control:
    • Bass: ± 10 dB (at 100 Hz)

Treble: ± 10 dB (at 10 kHz)

    • Loudness:
    • High Filter:
    • Low Filter:
  • Mute:


Special Features

  • 4 VU meters
    • Range switchable: - 10 dB
  • Switch for 4-channel RM, Discrete / Stereo / Mono
    • Version SB-404 S with SQ


Remarks










Pictures

  • Extract from Japan brochure: Toshiba SB-404

Toshiba SB-404-Prospekt-2.jpg


Reports

Links