Dynex Noise Suppressor

Model 241

DYNEX Noise Suppressor

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THIS PRODUCT IS NO LONGER IN PRODUCTION.

The Inovonics 241 DYNEX Noise Suppressor is a program-controlled filter/expander offering a simple yet effective means of suppressing a certain amount of the residual background noise present in most audio transmission and recording/reproducing systems.

Features

Specifications

Documentation

Features


  • Reduction of surface noise or rumble in disc playback equipment

  • Suppression of magnetic asperity noise in tape or film reproducing systems

  • Quieting of optical film sound channels

  • Improving S/N in interface between low grade telephone line and broadcast facilities

  • Variable Threshold adjustment

  • Visual indication of Threshold coincidence and full expansion

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Specifications


Frequency Response

±0.5 dB, 20Hz-20kHz

Output Noise Level

Below -85dBm

Distortion

  • Below 0.1% THD up to +10dBm output
  • Below 0.3% THD up to +23dBm output (Clipping Level above +24dBm)

Noise Suppression Characteristics

  • RUMBLE: Choice of two LF rolloff curves with restoration to flat response when low frequency energy exceeds preset Threshold.
  • HISS: Choice of two HF “shelving” curves with restoration to flat response when high frequency energy exceeds preset Threshold.
  • WIDEBAND NOISE: LF + HF rolloff characteristic with restoration to flat response when energy in supressed band exceeds preset Threshold.

Input

100K unbalanced (transformer optional) for nominal studio line levels of +4 or +8dBm. -03 versionaccepts unbalanced inputs between -10 and 0dBm.

Output

Feeds 600ohm lines or bridging inputs at nominal line levels. Clipping level in excess of +24dBm

Power Requirements

105-130 VAC (230V available), 50/60Hz, 0.1A.

Size and Weight

1-7/8” X 8-1/2” X 6-1/2”; 4lbs.

Documentation


241 Manual