Multi-Band Expander with Logicontrol System 4BX

dbx Inc.; Waltham (MA)

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  • Year
  • 1980–1986 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 322917

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 120 or 220 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Multi-Band Expander with Logicontrol System 4BX - dbx Inc.; Waltham MA
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 456 x 89 x 311 mm / 18 x 3.5 x 12.2 inch
  • Notes

  • Multi-Band Expander with Impact Restoration and Remote Logicontrol continuously ajustable from 1 to 1.5x. S/N   >105 dB ; Freq-range: 20-20000Hz ; Impact Restoration Gain +12 dB each band.

    Splits the audio band in 3 separate bands.

    Exspansion: 1:1.5 maximum each band.
    Dynamic Range: 105 dB (peak signal to weighted background noise ratio).
    Transition Level range (treshold): 30mV to 3V (mid-band).
    Frequency Response: +-0.5dB, 20hz to 20kHz at an expansion ratio 1.0:1
    Harmonic Distortion: < 0.1% 20Hz to 20kHz at any exspansion settings.
    Intermodulation Distortion: less than or equal to 0.1%.
    Input noise: 90dB below 1 Volt.
    Input impedance: 50 kOhms.
    Maximum output level:6 Volts RMS.
     

  • Net weight (2.2 lb = 1 kg)
  • 6.4 kg / 14 lb 1.6 oz (14.097 lb)
  • Price in first year of sale
  • 1,500.00 USD
  • Author
  • Model page created by Danko Tkalec. See "Data change" for further contributors.

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The model Multi-Band Expander with Logicontrol System is part of the collections of the following members.

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