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Appendix D
Microphone Input
Connector: Female XLR Pin 2 Hot
Type: Electronically balanced/unbalanced
Impedance: 330Ω
Maximum Input Level: -9 dBu or +11 dBu with 20 dB pad engaged
CMRR: >40dB, Typically 55dB
Equivalent Input Noise: Typically -120 dBu with a 150Ωsource load, 20Hz to
20kHz BW
Line Input (Rear Panel)
Connector: TRS 1/4" Jack
Type: Electronically balanced/unbalanced
Impedance: 20kΩunbalanced, 40kΩbalanced
Maximum Input Level: +21dBu balanced or unbalanced
CMRR: >40dB, Typically 55dB
Gain (Drive Control) -15dB to +15dB
Instrument Input (Front Panel)
Connector: TS 1/4" Jack
Type: Unbalanced
Impedance: 470 kΩ
Maximum Input Level: +21dBu unbalanced
Analog Outputs
Connector: Male XLR Pin 2 Hot and TRS 1/4"
Type: Servo-balanced/unbalanced
Impedance: Balanced 120Ω, unbalanced 60Ω
Maximum Output Level: >+21 dBu, >+20 dBm (into a 600Ω load)
Insert
Connector: TRS 1/4"
Type: Unbalanced
Impedance: 100Ω(SEND), 20kΩ(RETURN)
Digital Outputs
Connectors: XLR for AES/EBU
RCA for S/PDIF
Impedance: 110Ωfor AES/EBU
75Ωfor S/PDIF
Word Sync Input/Output
Connectors: BNC
Input Impedance: 75Ω terminated by internal jumper
Input: 96, 88.2, 48, or 44.1kHz word clock
Output: 96, 88.2, 48, or 44.1kHz word clock
System Performance
DRIVE Control Range: +30dB to +60dB for Mic Input
-15dB to +15dB for Line and Instrument Inputs
Output Level Control Range -20dB to +20dB
LINE: Selects between microphone and line inputs
Phantom Power: +48V
PAD: 20dB pad
PHASE: Reverses pins 2 and 3 of the microphone input XLR
LOW CUT: 75Hz, 12dB/octave high pass filter
Analog Frequency Response: <10Hz to 75kHz
THD+Noise: 0.35% typical at +4dBu out, 1kHz, 40 dB gain
Equalizer
LOW Frequency: 80 Hz, shelving filter
HIGH Frequency: 12 kHz, shelving filter
MID Frequency: Sweepable from 100 Hz to 8 kHz, bandwidth 1.5
octaves
Gain (all bands): Sweepable from –15 to +15 dB
Compressor
Threshold Range: -40 dBu to +20 dBu
Threshold Characteristic: Selectable OverEasy or Hard Knee
Compression Ratio: Variable; 1:1 to Infinity:1; 60 dB maxim um
Compression
Attack Time: Program-dependent; Typically 5 ms (SLOW disabled),
15 ms (SLOW enabled) for 15 dB Gain Reduction
Release Time: Program-dependent; Typically 50 dB/sec (SLOW dis-
abled), 8 dB/sec (SLOW enabled)
De-Esser
Characteristic: Wideband gain reduction
Frequency Range: 800 Hz to 10 kHz High Pass
Release Time: 12 dB/octave program-dependent; approximately 1
ms/dB
Analog to Digital Conversion
Type: dbx Type IV™ A/D Conversion System
Sample Rate: 96, 88.2, 48, or 44.1kHz selectable
Wordlength: 24, 20, or 16 bit selectable
Dither Type: TPDF, SNR
2
, or none
Noise Shape: Shape 1, Shape 2, or none
Output Format: S/PDIF or AES/EBU
Convertor Dynamic Range 107dB typical, A-weighted, 22kHz bandwidth
Power Supply
Operating Voltage:
DO: 120VAC 60Hz, 100VAC 50/60Hz
EU: 230VAC 50/60 Hz
Power Requirements: 35 Watts
D.3 Specifications
Appendix
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