Input
Connectors: XLR and 1/4" TRS (Pin 2 and tip hot)
Type: Electronically balanced/unbalanced, RF filtered
Impedance: Balanced > 50 kOhm, unbalanced > 25 kOhm
Max Input Level: > +24 dBu balanced or unbalanced
CMRR: Typically > 50 dB at 1 kHz
Outputs
Connectors: XLR and 1/4" TRS (Pin 2 and tip hot)
Type: Servo-balanced/unbalanced, RF filtered
Impedance: Balanced 120 Ohm, unbalanced 60 Ohm
Max Output Level: > +21 dBu, > +20 dBm
Sidechain Input
Connector: 1/4" TS
Type: Unbalanced, RF filtered
Impedance: > 10 kOhm
Max Input Level: > +24 dBu
Sidechain Output
Connector: 1/4" TRS (tip hot)
Type: Impedance balanced, RF filtered
Impedance: Balanced 2 kOhm, unbalanced 1 kOhm
Max Output Level: > +21 dBu balanced or unbalanced
System Performance
Bandwidth: 20 Hz to 20 kHz, +0/0.5 dB
Frequency Response: 0.35 Hz to 90 kHz, +0/-3 dB
Noise: < -96 dBu, unweighted, 22 kHz measurement bandwidth
Dynamic Range: > 118 dB, unweighted
THD+Noise: 0.008% typical at +4 dBu, 1 kHz, unity gain
0.08% typical at +20 dBu, 1 kHz, unity gain
< 0.1%, any amount of compression up to 40 dB, 1 kHz
IMD: < 0.1% SMPTE
Interchannel Crosstalk: < -80 dB, 20 Hz to 20 kHz
Stereo Coupling: True RMS Power Summing
Compressor
Threshold Range: -40 dBu to +20 dBu
Ratio: 1:1 to :1
Threshold Characteristic: Selectable OverEasy(R) or hard knee
Attack/Release Characteristic: AutoDynamic
Attack/Release Modes: Selectable Manual or Auto
Manual Attack Time: Scalable program-dependent
Manual Release Time: Scalable program-dependent
Auto Attack Time: Program-dependent
Auto Release Time: Program-dependent
Output Gain: -20 to +20 dB
Limiter
Threshold Range: +4 dBu to +24 dBu (off)
Ratio: :1
Limiter Type: PeakStopPlus two-stage limiter
Stage 1: PeakStop brickwall limiter
Attack Time: Zero
Release Time: Zero
Stage 2: Predictive intelligent program limiter
Attack Time: Program-dependent
Release Time: Program-dependent
Expander/Gate
Threshold Range: Off to +15 dBu
Ratio: 1:1 to 30:1
Attack Time: < 100 usec
Release Time: Program-dependent
Function Switches
SC Ext: Routes the external sidechain input signal to the detector.
SC Mon: Routes the sidechain signal to the output, interrupting the normal audio.
OverEasy: Activates the OverEasy compression function.
Contour: Activates the frequency-dependent detector function.
Auto: Activates automatic program-dependent attack and release times, disabling the manual Attack and Release controls.
I/O Meter: Switches between monitoring input and output levels on the Input/Output Level meter.
Bypass: Activates the direct input-to-output hard-wire relay bypass. Relay automatically hard-wire bypasses unit at power-down and provides a power-on delay of 1.5 sec.
Operating Level (rear panel): Switches the nominal operating level between -10 dBV and +4 dBu simultaneously for both input and output levels.
ST Link: Links both channels for stereo operation. Channel One becomes the master.
Indicators
Gain Reduction Meter: 12-segment LED bar graph at 1, 2, 4, 6, 9, 12, 15, 18, 21, 24, 27, and 30 dB
Input/Output Meter: 8-segment LED bar graph at -24, -18, -12, -6, 0, +6, +12, and +18 dBu
Compressor Threshold Meter: 3-segment LED bar graph at Below (-), OverEasy, and Above (+)
Exp/Gate Threshold Meter: 2-segment LED bar graph at Below (-) and Above (+)
Limiter, Threshold Meter: 1 LED to indicate PeakStopPlus limiting
Function Switches: LED indicator for each front-panel switch
Options
Output Transformer
Per Channel: Jensen JT-123-dbx or JT-11-dbx, BCI RE-123-dbx, or RE-11-dbx
Power Supply
Operating Voltage: 100-120 VAC 50/60 Hz 200-240 VAC 50/60 Hz
Power Consumption: 20 Watts
Fuse: 100-120 VAC: 250 mA Slow Blow
200-240 VAC: 125 mA Type T
Mains Connection: IEC receptacle
Physical
Dimensions (H x W x D): 1.75 x 19 x 9" (4.4 x 48.3 x 20.1 cm)