BSS Audio
DPR-402 User Manual v3.0
Page 30
17 Specifications
17
.1 General
Input Impedance:
10k ohm balanced or unbalanced.
Input Headroom:
>+20dBv.
Input CMMR:
Better than -50dB 30Hz-20kHz. Typically -65dB at
1kHz.
Output level:
>+20dBv into 600 ohms or greater.
Output Impedance:
<1 ohm unbalanced.
Output Gain:
±20dB continuously variable.
Frequency Response:
±1dB 25Hz to 20kHz. Ultrasonic filter -3dB at 30kHz.
Noise:
Equivalent input noise <-86dBv 22Hz to 22kHz
<-82dBv CCIR weighted.
Distortion:
Unity Gain +10dBm output, below threshold.
THD. <0.03% 20Hz-20kHz. Typically 0.002% at
1kHz.
IMD. <0.01% SMPTE. Typically 0.003%.10dB
compression.
Threshold 0dB. 1kHz, 5sec rel. Time (see note 1).
2nd Harmonic <0.15%.
3rd Harmonic <0.05%.
IMD (SMPTE) <0.25%.
Cross Talk:
Better than -85dB 20Hz to 20kHz, any settings.
17
.2 Compressor
Threshold Range:
-30dBv to 20dBv continuously variable.
Compressor Ratio:
1:1 to infinity:1 continuously variable. Over infinity
available by Barrier strip re-linking.
Maximum VCA Range:
>30dB.
Attack Time:
50 microseconds to 80 milliseconds in 11 switched
steps (see note 2).
Release Time:
5 milliseconds to 5 seconds in 10 switched steps and
AUTO (see note 2).
AUTO TIME Constant:
A two part program dependant time constant. Attack
time is typically 200 microseconds on fast transient
overdrives. Release is typically 10 milliseconds for
