Type I Noise Reduction System 150

dbx Inc.; Waltham (MA)

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  • Year
  • 1974 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 295482

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 120/220 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Type I Noise Reduction System 150 - dbx Inc.; Waltham MA
  • Shape
  • Rack
  • Dimensions (WHD)
  • 483 x 44 x 184 mm / 19 x 1.7 x 7.2 inch
  • Notes

  • Dynamic range 110dB (peak signal to A weighted background noise)
    Input impedance 100k ohms (designed to be driven from a source impedance less than 10k ohms)
    Nominal Input level -10dB
    Maximum input level +16dB
    Output impedance 100 ohms (designed to drive 5k ohm load or greater) 
    NOTE- not designed for operation into 600ohms loads
    maximum output Level +16dB
    Frequency Response +-0.5dB 30Hz to 20kHz (encode/decode)
    Slew rate >10V/usec
    Effective noise reduction 30dB plus 10dB of Headroom
    Equivalent input noise -85dBV
    Distortion <0.5% THD 30Hz to 100Hz   <0.1% THD 100Hz to 20kHz
    Power consumption 7W

  • Net weight (2.2 lb = 1 kg)
  • 4 kg / 8 lb 13 oz (8.811 lb)
  • Author
  • Model page created by Bartosz Szwed. See "Data change" for further contributors.

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