QSC DSP-3 Hardware Manual page 27

Section 3:
Specifications
Signal Processing 24 bit, 48 kHz.
Frequency response
at 3dB below full
scale input voltage
Distortion
Delay (throughput)
Dynamic range
Polarity
Mute
Inputs
Program inputs
Connector type
Type
Grounding
Input sensitivity
(full scale input level)
Impedance
Power amplifier connectivity
Power amplifier interface
Compatibility all QSC and non- QSC amplifiers
Full-feature set all QSC DataPort equipped amplifiers
Connector and cable
HD-15 VGA cable, 2 meters length
qualified (for longer runs, contact
QSC's Technical Services Department)
RS-232 Port
Cable Type
Maximum Length
Contact closure input (sense)
Inputs
Configuration
Resistance for closure detect <150 Ohms
Resistance for open detect
TTL Compatible
Maximum Voltage= +9vdc
20 Hz–10 kHz ±0.3 dB (term. block inputs)
20 Hz–20 kHz ±0.7 dB (term. block inputs)
20 Hz–20 kHz±0.2 dB (DataPort inputs)
<0.01% THD+N @ +4 dBu out
687.5 microseconds
>93 dB unweighted
20 Hz–20 kHz, 1.5V, 4V and 9V sensitivity
>88dB unweighted
20 Hz–20kHz, 18V sensitivity
In-phase or inverted
>90 dB attenuation
2
"Phoenix-style" (a.k.a.
"Euro-style") detachable terminal blocks
Electronically balanced
All shield terminals connected to
chassis
1.5, 4.0, 9.0 or 18.0 Vrms
6, 14.5, 21.5 or 27.5 dBu
3.5, 12.0, 19.0 or 25.0 dBv
Units are selectable in software interface
8.3 K Ohm balanced
3.7 K Ohm unbalanced
9-pin serial cable, male-to-female
25 feet (7.6 meters)
1 discrete input (pin #9 of RS-232 port)
Single-ended input
>1.9 K Ohms
Note: Specifications are subject to change without notice.
Common-mode rejection
Crosstalk
Outputs
Program outputs
Connector type
Pinout
Cable type
Qualified length
Daisy-chain output
Connector
Type
Grounding
Output level
(full scale)
Output impedance
Amplifiers one 2-Ch. amplifier per DSP-3
Amplifier status monitor
Clip indicator
Protect indicator
(status monitoring not available for non-DataPort amplifiers)
>50 dB, 20 Hz–20 kHz
>75 dB separation, 20 Hz–20 kHz
2 (via HD-15)
HD-15 DataPort connection
Special, see appendix
QSC DataPort cable
2 meters
2 (1 per channel)
"Phoenix-style" (a.k.a.
"Euro-style") detachable
terminal blocks
Electronically balanced
Shield terminal connected to
chassis
6.0 or 4.0 Vrms
18.0 or 14.5 dBu
15.5 or 12.0 dBv
600 Ohms balanced
Senses channel clipping
Senses amplifier protect status
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