BSS Audio DPR-504 4-Channel Professional Noise Gate - USED

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Price:
Sale price$331.00 Regular price$399.00

Description

The BSS DPR-504 is a 4-channel professional noise gate which has been designed for simple and intuitive use. It incorporates modern integrated circuit technology for high packing density and long term reliability. Ingenious proprietary techniques are employed to make the engineers life easier without compromise to performance or versatility.
Four independent channels that are linkable to give either one or two stereo linked master/slave modes
Flexible parametric Key filter for frequency conscious gating with absolute precision. The parametric EQ approach provides a higher degree of control for accurately rejecting spurious unwanted gate triggers than similar shelving filters.
Key listen provides operator with the facility to hear the effect of Key side- chain EQ or other processing effect as an aid to setting up.
Dual metering system which indicates both average and peak responses simultaneously and gives the operator precise information regarding the signal levels around the threshold point. Separate 'gate open' marker LED, linked to gate dynamics, continually monitors interrelation between gate activity and the actual signal.
Each channel features

  • A parametric key filter with key filter listening.
  • Simultaneous key level and threshold metering with average and peak metering.
  • A gate status LED.
  • A RELEASE/HOLD control (hold tracks proportionally with release times).
  • Attack switchable auto/fast (auto tracks signal dynamics for optimum setting).
  • Link (links two channels together).
  • Key source allows external triggers.

SPECIFICATION


DPR-504 Quad Noise Gate

Specifications:

Input Section

  • Impedance: Balanced 12k ohm differential
  • Max. Input Level: + 20dBv
  • CMRR: better than 50dB, 20Hz to 20Khz
  • Connector: XLR3-31 or equivalent style

Output Section

  • Impedance: Balanced and floating to drive 600 ohm loads
  • Headroom: +20dBv into 600 ohm load
  • Frequency: +/-1dB 20Hz to 20kHz. Ultrasonic low pass filter
  • Response: -3dB at 32kHz
  • Noise: Measured to CCIR 468-2
  • Zero attenuation: <-86dBv
    Maximum attenuation <-90dBv
    Distortion: THD <0.05% 20Hz to 20kHz
    SMPTE IM: <0.02%
    Connector: XLR3-32 or equivalent.

Operating Controls

  • Key filter: Variable between 100Hz and 20kHz centre frequency
  • Key width: Variable between 0.5 and 10 octaves
  • Key source: Switchable internal or EXTernal via 1/4" RTS jack
  • Threshold: Variable between +20dBv and 30dBv
  • Attack: Audio attack switchable FAST (20uS) or AUTO (40uS - 5mS) program
  • dependant
  • Release: Combined Hold/Release function variable 1mS to 4S
  • Hold period tracks proportionally with release
  • Release has custom audio taper
  • Range Switchable attenuation between -70dB and -20dB
  • Link: Stereo linkable in pairs 1/2 and 3/4 Channels 1 and 3 become masters
  • EXT Socket 3 pole 1/4" RTS jack socket to provide unbalanced access into key side chain

Metering

  • Key level: Simultaneous average and peak reading 12 point LED display showing 28dB range of Key side-chain signal
  • Gate open: Single triangular LED showing exact gate status
  • Mimics response profile as set by attack and release controls


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