AudioDPR402 BSS Stereo Depressor Limiter
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The DPR-402 is a 2-channel compressor/limiter, high frequency de-esser and wide band de-esser with peak limiting, adjustable speed, dynamics program manipulation, and full LED metering for both input and output.
Integrated side-chain and gain reduction metering allow for continuous dynamic activity monitoring.
Auto mode provides program dependant attack and release control.
Integrated side-chain and gain reduction metering allow for continuous dynamic activity monitoring.
Auto mode provides program dependant attack and release control.
TECHNICAL SPECIFICATIONS
Input Section
IMPEDANCE10KOhm, electronically balanced.
MAX INPUT LEVEL+20dBv.
INPUT CMRR> -50dB 30Hz-20Hz.
INPUTXLR3-31 or equivalent. Wired as
CONNECTORpin 1 o/c, pin 2 cold, pin 3 hot.
Output Section
IMPEDANCELess than 1 Ohm unbalanced,current limited.
MAX OUTPUT LEVEL +20dBv into 600 ohms.
OUTPUT GAIN+20dB continuously variable.
OUTPUT XLR3-32 or equivalent. Wired as
CONNECTORpin 1 earth, pin 2 earth, pin 3 hot.
System Performance
FREQUENCY+1dB 25Hz-20kHz. Ultrasonic
RESPONSEfilter -3dB@ 30kHz.
NOISEEquiv. input noise -86dBv 22Hz -22kHz, -82dBv CCIR weighted.
DISTORTIONUnity gain, + 10 dBm output,below threshold: THD 0.03%20Hz-20kHz.IMD 0.01%SMPTE, 10 dBcompression. Threshold 0dB.1kHz, 5 sec rel. time setting: 2NDHARMONIC 0.15%. 3RDHARMONIC 0.05%.IMD 0.25%Harmonic distortion in this type ofequipment will increase with reducedfrequency and shorter time constants.
CROSSTALK< -85dB 20Hz -20kHz.
Compressor
THRESHOLD-30 to +20 dBv cont. variable.
RATIO1:1 continuously variable to infinity:1.
MAX. VCA RANGE30dB.
ATTACK TIME11 steps 50μsec-80msec.
RELEASE TIME10 steps 5ms to 5 sec and AUTO
AUTO TIME CONSTANT A two part program-dependent time constant. Typical attacktime is 200 μsec on fast transients, release time 10msec for 63%recovery from a 10dB 4msecresponse, and 1 sec for a 10dB 40 msec response.
De-esser
THRESHOLD RANGE -30 to +20 dBv continuouslyvariable.
RATIOInfinite, at and above twice the setfrequency.
FREQUENCY RANGE 800Hz to 15kHz continuouslyvariable.Frequency is that at which 3dB of gainreduction occurs for 10dB of signal overdrive above threshold.10dB of gain reduction will occur at and above twice thisfrequency.
Peak Limiter
THRESHOLD RANGE +4dBv to +20dBv continuouslyvariable.
RATIO20:1.
ATTACK TIMEFast setting 150μsec, Slow setting750μsec.
RELEASE TIMEFast setting 100msec, Slow setting500msec.
Dimensions and Power
SIZE482 x 44 x 228mm19in x 13/4in x 9in overall.
WEIGHT4.5kg (10lbs) packed.
ELECTRICAL SUPPLY 120-220V +105-20% 50/60Hz15VA
Input Section
IMPEDANCE10KOhm, electronically balanced.
MAX INPUT LEVEL+20dBv.
INPUT CMRR> -50dB 30Hz-20Hz.
INPUTXLR3-31 or equivalent. Wired as
CONNECTORpin 1 o/c, pin 2 cold, pin 3 hot.
Output Section
IMPEDANCELess than 1 Ohm unbalanced,current limited.
MAX OUTPUT LEVEL +20dBv into 600 ohms.
OUTPUT GAIN+20dB continuously variable.
OUTPUT XLR3-32 or equivalent. Wired as
CONNECTORpin 1 earth, pin 2 earth, pin 3 hot.
System Performance
FREQUENCY+1dB 25Hz-20kHz. Ultrasonic
RESPONSEfilter -3dB@ 30kHz.
NOISEEquiv. input noise -86dBv 22Hz -22kHz, -82dBv CCIR weighted.
DISTORTIONUnity gain, + 10 dBm output,below threshold: THD 0.03%20Hz-20kHz.IMD 0.01%SMPTE, 10 dBcompression. Threshold 0dB.1kHz, 5 sec rel. time setting: 2NDHARMONIC 0.15%. 3RDHARMONIC 0.05%.IMD 0.25%Harmonic distortion in this type ofequipment will increase with reducedfrequency and shorter time constants.
CROSSTALK< -85dB 20Hz -20kHz.
Compressor
THRESHOLD-30 to +20 dBv cont. variable.
RATIO1:1 continuously variable to infinity:1.
MAX. VCA RANGE30dB.
ATTACK TIME11 steps 50μsec-80msec.
RELEASE TIME10 steps 5ms to 5 sec and AUTO
AUTO TIME CONSTANT A two part program-dependent time constant. Typical attacktime is 200 μsec on fast transients, release time 10msec for 63%recovery from a 10dB 4msecresponse, and 1 sec for a 10dB 40 msec response.
De-esser
THRESHOLD RANGE -30 to +20 dBv continuouslyvariable.
RATIOInfinite, at and above twice the setfrequency.
FREQUENCY RANGE 800Hz to 15kHz continuouslyvariable.Frequency is that at which 3dB of gainreduction occurs for 10dB of signal overdrive above threshold.10dB of gain reduction will occur at and above twice thisfrequency.
Peak Limiter
THRESHOLD RANGE +4dBv to +20dBv continuouslyvariable.
RATIO20:1.
ATTACK TIMEFast setting 150μsec, Slow setting750μsec.
RELEASE TIMEFast setting 100msec, Slow setting500msec.
Dimensions and Power
SIZE482 x 44 x 228mm19in x 13/4in x 9in overall.
WEIGHT4.5kg (10lbs) packed.
ELECTRICAL SUPPLY 120-220V +105-20% 50/60Hz15VA