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DCM
Dimensions (HWD):
5.25" x 19" x 15"
Line Voltage Requirements:
100 VAC – 240 VAC, 50/60 Hz
Accessories Included:
(1) 6 ft. (2m) UL/CSA line cord • (1) User Manual
(1) Software CD
Front Panel Controls
Power Switch:
(1) Rocker Switch
Monitor Mode Select:
(1) Momentary Push Button
Monitor Channel Select:
(9 or 11) Momentary Push Buttons
Monitor Volume:
(1) Rotary Potentiometer
Test Lead Connections:
(2) Test Point Jacks
Bypass Mode Select Switch:
(1) Slide Switch
Indicators
Power Indicator:
(1) Green LED
Monitor Mode Indicators:
(1) Green LED and (1) Yellow LED
Processor Channel Indicators:
(9 or 11) Green LEDs
Amplifier Channel Indicators:
(9 or 11) Yellow LEDs
Load Fault Indicator:
(1) Red LED
Clip Indicator:
(1) Red LED
Bypass Mode Indicator:
(1) Flashing Red LED
Alt EQ Mode Indicator:
(1) Yellow LED
Rear Panel Controls
Bypass Crossover Level:
(2 or 3) Rotary Trimpots
Bypass Crossover Type:
(1) Slide Switch
Analog/Digital Input Select:
(1) Slide Switch
(D models only)
Rear Panel Control Connectors
Main Analog Input:
(1) 25-pin female D-sub connector
Surround EX Input:
(1) 25-pin female D-sub connector
Digital Input (D models only):
(1) 25-pin female D-sub connector
Amplifier DataPorts:
(10 or 19) 15-pin female high-density D-sub connectors
Control Port:
(1) USB Series-B Receptacle
Hearing Impaired Line Output:
(1) 3 postion screw-terminal connector
Powered Sub Line Output:
(1) 3 postion screw-terminal connector
External Monitor Speaker Output: (1) 2 position screw-terminal connector
Aux Line Level Input:
(1) 3 position screw-terminal connector
Alt EQ Contact Closure Input:
(1) 2 position screw-terminal connector
AC Power Inlet:
(1) IEC style
DCM Inputs
Input Stage Type:
Active balanced
Input Impedance:
20k ohms
Maximum Analog Input Level:
+14.2 dBu (4.0 Vrms)
A/D Conversion:
24 bit delta-sigma 128x oversampled
Dataport Outputs - Screen Channels
Output Level Range:
+6 dB to -18 dB in 0.1 dB steps
Dynamic Range:
>103 dB
THD+N, AES-17, 20Hz – 20kHz,
+12 dBuInput Level, All Filters
Set Flat:
< 0.013% Analog Inputs / < 0.008% Digital Inputs
Frequency Response:
20 Hz – 20 kHz (no filtering)
D/A Conversion:
24 bit delta-sigma 128x oversampled
Filter Topology:
24 bit digital IIR filters
Crossover Filters:
Linkwitz-Riley 24 dB / octave digital filters programmable from
20 Hz – 20 kHz
Parametric EQ:
(3 per channel + 3 per band)
Digital bandpass filter with ±10 dB of boost/cut programmable from 20 Hz –
20 kHz. Q is programmable in 1/10th octave steps from 1/10 to 2 octaves
CD Horn EQ:
Digital shelf filter with up to 6 dB of boost programmable from
1 kHz – 20 kHz. Available on high-frequency band only
Screen EQ:
Digital shelf with up to 6 dB of boost programmable from
1 kHz – 20 kHz
Subsonic (highpass) filter:
Digital high pass filter programmable from 15 Hz – 50 Hz.
Q can be programmed as 0.707 (flat) or 2 (B6 boost)
Allpass Filter:
2nd order allpass filter programmable from 20 Hz – 2000 Hz
(dual low band output only)
Channel Delay:
Programmable in 1ms steps from 0 – 20 ms
Programmable in 21 µs steps from 0 – 10 ms per band
Band Delay:
Band Polarity:
Normal, Inverted
Mute:
Individual mutes on each channel and band output
Specifications subject to change without notice.
QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark office and other countries.
All other trademarks are the property of their respective owners. Patents may apply or be pending.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174
DCM Spec Sheet - 09/18/08
Dataport Outputs - Surround and Subwoofer
Output Level Range:
+6 dB to -18 dB in 0.1 dB steps
Dynamic Range:
>103 dB
THD+N, AES-17, 20Hz – 20kHz,
+12 dBuInput Level, All Filters
Set Flat:
< 0.013% Analog Inputs / < 0.008% Digital Inputs
Frequency Response:
20 Hz – 20 kHz (no filtering)
D/A Conversion:
24 bit delta-sigma 128x oversampled
Filter Topology:
24 bit digital IIR filters
Parametric EQ (2 per channel):
Digital bandpass filter with ±10 dB of boost/cut programmable
from 20 Hz to 20 kHz. Q is programmable in 1/10th octave steps from
1/10 to 2 octaves
Subsonic (highpass) Filter:
Digital high pass filter programmable from 15 Hz – 50 Hz.
Q can be programmed as 0.707 (flat) or 2 (B6 boost)
Channel Delay:
Programmable from 0 – 150 ms per output (surrounds only)
Mute:
One mute for all subwoofer outputs, one per surround channel
Bass Management:
Weighted sum of screen channels may be low pass filtered and
mixed with sub output
DataPort Outputs - Aux
Output Level Range:
+6 dB to -18 dB in 0.1 dB steps
Dynamic Range:
>103 dB
THD+N, AES-17, 20Hz-20kHz,
+12 dBuInput Level, All Filters
Set Flat:
< 0.013% Analog Inputs / < 0.008% Digital Inputs
Frequency Response:
20 Hz – 20 kHz (no filtering)
D/A Conversion:
24 bit delta-sigma 128x oversampled
Filter Topology:
24 bit digital IIR filters
Crossover Filters:
Linkwitz-Riley 24 dB/octave digital filters programmable from
20 Hz – 20 kHz
Parametric EQ:
Digital bandpass filter with ±10 dB of boost/cut programmable from
(3 per channel + 3 per band )
20 Hz – 20 kHz. Q is programmable in 1/10th octave steps from 1/10
to 2 octaves
Subsonic (highpass) Filter:
Digital high pass filter programmable from 15 Hz – 50 Hz. Q can be
programmed as 0.707 (flat) or 2 (B6 boost)
CD Horn EQ:
Digital shelf filter with up to 6 dB of boost programmable from 1kHz
– 20 kHz. Available on high frequency band only
Screen EQ:
Digital shelf with up to 6 dB of boost programmable from 1 kHz – 20 kHz
Channel Delay:
Programmable from 0 – 20 ms per output
Programmable in 21 µs steps from 0 – 10 ms per output
Band Delay:
Mute:
Individual mutes on each channel output
Surround Bass Management:
Weighted sum of surround channels may be low pass filtered and
mixed with aux output
Amplifier A.C. Control
All amps power on with DCM activation
Emergency Bypass Crossover
Filter Type:
2nd order active Butterworth, 2 or 3 way
Attenuation Range (trimpot):
0 dB to -20 dB
Crossover Frequencies:
1000 Hz (2-way), 500 Hz and 1500 Hz (3-way)
Powered Subwoofer Output
Output Stage Type:
Single ended (balanced impedance)
Output Impedance:
50 ohms
Maximum Output Level:
+14.8 dBu (6Vp = 4.25 Vrms)
Loading Requirements:
R
= 2k ohms C
MIN
(total of remote & dataport connection)
Monitor Speaker Output
Amplifier Output Power:
15 watt Class D amplifier
Frequency Response:
20 Hz – 20 kHz (±2 dB)
Dynamic Processing:
1.5:1 Compression
Aux Input
Input Stage Type:
Active Balanced
Input Impedance:
20k ohms
Maximum Input Level:
+14.2 dBu (4.0 Vrms)
Hearing Impaired Output
Output Stage Type:
Single Ended (balanced impedance)
Output Impedance:
50 ohms
Nominal Output Level:
-11.8 dBu (200 mVrms)
Loading Requirements:
R
= 2k ohms C
MIN
Contact Closure Input
Input Type:
TTL Compatible or Dry Contact Closure
Operating Mode:
Connection to ground through a maximum impedance of 1.3 k ohms
selects alt EQ settings
Internal Monitor Speaker
Dimensions:
4" full range driver
Specifications
= 4 nF
MAX
= 4 nF
MAX
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