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BSS DPR-404
code: 851.BSS.010.RAC
A 4 channel compressor with high frequency de-essing.
Each channel includes:
- Threshold control
- Below threshold metering
- Ratio control
- A gain reduction meter
- A clip LED
- Gain control
- Linking
- High frequency de-esser.
Attack and release time constants are automatically and continually regulated by dynamic and harmonic content of program material.
The unit features electronically balanced inputs and outputs.
SPECIFICATIONS
Input Section
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Impedance |
Balanced 12k ohm differential. |
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Max. Input Level |
+ 20dBv. |
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CMRR |
better than 50dB, 20Hz to 20Khz. |
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Connector |
XLR331 or equivalent. |
Output Section
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Impedance |
Balanced and floating to drive 600 ohm loads. |
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Max. Output Level |
+20dBv into 600 Ohm load. |
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Connector |
XLR332 or equivalent. |
System Performance
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Frequency Response |
+ 1DB, 20Khz, ultrasonic low pass filter 3db at
32kHz. |
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Noise |
Measured to CCIR 4682, <-86dBv. |
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Distortion |
THD <0.05%, 20Hz to 20kHz. |
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SMPTE IM |
<0.02%. |
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Crosstalk |
<90dB, 20Hz to 20kHz. |
Operating Controls
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De-ess Frequency |
Variable from 10kHz to 10kHz, dynamic HF shelf
turnover frequency. |
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De-ess Threshold |
Variable from +20dBv to 30dBv, independent of
compressor/limiter settings. |
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Threshold |
Variable between +20dBv and 30dBv. |
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Ratio |
Variable from 1:1 to infinity:1 (LIMIT) progressive
soft to hard knee characteristic. |
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Attack |
Program dependent, auto time constant. Nominal
200microsec (30 microsec FAST) for 10% response, and nominal 2ms (300
microsec FAST) for 63% response. |
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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. |
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Gain |
Variable from 20dB to +20dB. |
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Link |
Stereo linkable in pairs 1/2 and 3/4 Channels 1 and 3
become masters. |
Metering
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Gain Reducton |
8 point LED display showing progressive gain
reduction from right to left calibrated in dB's. |
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Below Threshold |
5 points LED display showing sidechain level below
and up to threshold. |
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Clip |
Single LED showing onset of channel clip. |
General
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Size |
482mm x 44mm x 282mm (19" x 1.75" x 11"). |
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Weight |
5kg (11lbs) gross shipping. |
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Electricity Supply |
Switched 120/240V +10% 20% 50/60Hz. |
