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Specifications- ISIS 215PCM Processors
Note: Specifications are subject to change without notice.
Digital Signal Processor Specifications
Type
Freely configurable, custom DSP with software for PC. Computer connection needed only for set up.
Signal Processing
Two QSC DSP-3 Processors, 24 bit, 48 kHz., one for each amplifier
Frequency response
at 3 dB below full scale input voltage
20 Hz– 10 kHz ±0.3 dB (XLR inputs on 215PCM rear panel)
20 Hz– 20 kHz ±0.7 dB (XLR inputs on 215PCM rear panel)
20 Hz– 20 kHz±0.2 dB (if using DataPort input on Processors)
Distortion
<0.01% THD+N @ +4 dBu out
Delay (throughput)
1.00 millisecond
Dynamic range
>93 dB unweighted, 20 Hz– 20 kHz, 1.5V, 4V and 9V sensitivity
>88dB unweighted, 20 Hz– 20 kHz, 18V sensitivity
Polarity
In-phase or inverted
Mute
>90 dB attenuation
Input Connector type
True-Cannon XLR connectors mounted on 215PCM rear panel
Type
Electronically balanced
Grounding
All shield terminals connected to chassis
Input sensitivity
, full scale
1.5, 4.0, 9.0 or 18.0 Vrms, (Units are selectable in software interface)
6, 14.5, 21.5 or 27.5 dBu
3.5, 12.0, 19.0, 25.0 dBv
Input Impedance
Discrete Mode- 8.3 k ohm balanced, 3.7 k ohm unbalanced
Combination Mode- 4.15 k ohm balanced, 1.85 k ohm unbalanced
Common-mode rejection
>50 dB, 20 Hz– 20 kHz
Crosstalk
>75 dB separation, 20 Hz– 20 kHz
Outputs
Program outputs hard wired to amplifiers
Post-DSP auxillary outputs
Three- 2 (Top Box), 1 (Subwoofer, CH2 output not used)
Type
Electronically balanced detachable terminal blocks
Grounding
Shield terminal connected to chassis
Post-DSP auxillary output level,
full scale
6.0 or 4.0 Vrms; 18.0 or 14.5 dBu; 15.5 or 12.0 dBv (Units are selectable in software interface)
Output impedance
600 ohms balanced
QSC System Manager Connectivity
(applicable only to users employing QSC System Manager)
System Interface Compatibility
QSC DataPort amplifier network monitors
Cable
QSC DPC-X DataPort cable, male-male (various lengths are available , contact QSC’s Technical
Services Department)
DataPorts Used
2 (1 per Processor)
Amplifier status monitor features
Clip indicator
Senses channel clipping
Protect indicator
Senses amplifier protect status
AC Power Status
Reports standby/operate mode
RS-232 Ports
(used for configuring each Processor’s DSP chain)
Number of ports
Two (one for each processor)
Cable Type
Normal 9-pin serial cable, male-to-female
Maximum Length
25 feet (7.6 meters)
Communication Settings
Automatic (unless other software using port)
DSP Capabilities
(freely configurable DSP “blocks”, use as many of any block until DSP “resources” are consumed)
High-Pass Filter
Low-Pass Filter
High-Shelf Filter
Low-Shelf Filter
Limiter
Compressor
Delay
Polarity
Parametric EQ
Level Meter
2 to 1 Mixer
1 to 2 Splitter
Mute
Fader
Pink & White Noise Source
Variable Frequency Tone Source
Clip & Protect Indication available if operating the DSP real-time from PC
External Contact Closure Sensing (pin #9 of RS-232, operates with ”Switched Gain” objects in Signal Manager software)
