With ease of operation and low cost, without sacrificing quality and musicality.

The DPR-404from BSS Audio is a compact and professional 4-channel compressor and de-esser. Based on the well established BSS subtractive gain reduction principle, it offers you four independent channels of high quality, musical compression and high frequency de-essing, with the minimum of operator controls.

Attack and release time constants are automatically and continually regulated by dynamic and harmonic content of program material. The DPR-404 features electronically balanced inputs and outputs. The DPR-404 was designed to be quick and easy to operate by both skilled and novice engineers alike.

BSS Audio DPR-404 Quad Compressor De-esser Features:

• 30dB of gain reduction using BSS proprietary subtractive approach.
• Fully adjustable soft knee ratio up to 20:1 hard limit.
• Automatic adjustment of time constants with two user definable ranges.
• Output gain adjustment control with LED clip indicator. BSS proprietary
• activity meter showing below threshold signal level, gain reduction and
• usable range.
• Bypass in/out switching with LED indicator. Independent high frequency de-
• esser threshold control and tuneable filter allows selective de-essing
• simultaneously with compression.
• Twin LEDs show de-ess activity.
• Link switching allows adjacent channels to be linked for accurate stereo
• working.
• One DPR-404 can be selected to process two stereo channels, or one stereo
• channel and two independent mono channels, or four independent mono
• channels.
• Compressor side chain insert on rear panel 1/4" RTS jack.
• Electronically balanced inputs and outputs with optional transformer
• balancing.

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BSS Audio DPR-404 Quad Compressor De-esser Specifications:

• Input Section
• Impedance: Balanced 12k ohm differential
• Max. Input Level: + 20dBv
• CMRR: better than 50dB, 20Hz to 20Khz
• Connector: XLR331 or equivalent
  
  Output Section
• Impedance: Balanced and floating to drive 600 ohm loads.
• Max. Output Level: +20dBv into 600 Ohm load.
• Connector: XLR332 or equivalent.
  
  System Performance
• Frequency Response: + 1DB, 20Khz, ultrasonic low pass filter 3db at 32kHz.
• Noise: Measured to CCIR 4682, <-86dBv.
• Distortion: THD <0.05%, 20Hz to 20kHz.
• SMPTE IM: <0.02%.
• Crosstalk: <90dB, 20Hz to 20kHz.
  
  Operating Controls
• De-ess Frequency: Variable from 10kHz to 10kHz, dynamic HF shelf turnover frequency.
• De-ess Threshold: Variable from +20dBv to 30dBv, independent of compressor/limiter settings
• Threshold: Variable between +20dBv and 30dBv
• Ratio: Variable from 1:1 to infinity:1 (LIMIT) progressive soft to hard knee characteristic
• Attack: Program dependent, auto time constant. Nominal 200microsec (30 microsec FAST) for 10% response, and nominal 2ms (300 microsec FAST) for 63% response.
• Release: Program dependant, 2 part auto time constant. Nominal 10ms (2ms FAST) to 63% recovery after 4ms overdrive 10db above threshold, and nominal 1s (300ms FAST) to 63% recovery after 40ms overdrive 10dB above threshold.
• Gain: Variable from 20dB to +20dB
• Link: Stereo linkable in pairs 1/2 and 3/4 Channels 1 and 3 become masters
  
  Metering
• Gain Reducton: 8 point LED display showing progressive gain reduction from right to left calibrated in dB's.
• Below Threshold: 5 points LED display showing sidechain level below and up to threshold.
• Clip: Single LED showing onset of channel clip.
  
  General
• Size: 482mm x 44mm x 282mm (19" x 1.75" x 11").
• Weight: 5kg (11lbs) gross shippin
• Electricity Supply: Switched 120/240V +10% 20% 50/60Hz
  
  

BSS Audio DPR-404 Quad Compressor De-esser

$1,349.99

MSRP: $1,499.00 Savings: $149.01(9%)

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