QSC

Processors

DCP 300

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QSC’s Digital Cinema Processor, the DCP 300, builds on the legacy of DCM and Basis to provide all signal processing and monitoring functions for Digital Cinema in a single integrated system. Designed to be used with QSC’s Digital Cinema Amplifiers (DCA) and featuring advanced DSP presets for QSC’s Digital Cinema Speakers (DCS), the DCP 300 optimizes loudspeaker performance while simplifying cinema sound system wiring and configuration.

Specification:
Front Panel Controls
Power switch Rocker switch
Mute control Push button
Auditorium fader Rotary encoder
Monitor volume/parameter adjust Rotary encoder
Menu-driven LCD Touch control LCD
Rear Panel Connectors
D-Cinema input group 1 DB-25: AES3/EBU channels 1-8
D-Cinema input group 2 DB-25: AES3/EBU channels 9-16
Main analog input DB-25: Analog audio channels 1-8
Extended surround input DB-25: Surround and Le/Re channels
Universal Mic/Line input XLR: Mic (+ phantom pwr) or line level
S/PDIF input RCA: Stereo digital audio interface and Lt/Rt matrix
RCA (L/R) inputs RCA (2): Left and right line level, stereo and Lt/Rt matrix
Dataport outputs HD-15 (14): QSC amplifier interface
Automation inputs 6-pin Euro-style (2) TTL compatible dry contact closure
Serial Control DB-9 RS-232 serial interface
Logic output 4-pin Euro-style (2) outbound control
Relay outputs 6-pin Euro-style (2) outbound control
USB port Config and management interface
QSControl RJ45 10/100 Mbps network management
CobraNet RJ45s 100 Mbps primary/backup network audio
SD card receptacle Configuration memory card (1 GB min)
HI/VI Impaired Output
Output stage type Single ended (balanced Z)
Output impedance 50 Ohms
Nominal output level -11.8 dBu (200 mVrms)
Loading requirements Rmin = 2k ohms, Cmax = 4nF
Audio Network
Protocol CobraNet version 2 protocol
Data rate 100 Mbps (Fast Ethernet)
Ports 1 Primary, 1 Backup (auto-failover)
Connection requirements Cat-5 UTP cable or better (100m maximum length), direct connection to wired network switch ports only, dedicated LAN or VLAN
QSControl Network
Protocol Standard TCP/IP implementation over Ethernet or Fast Ethernet.
Data rate 10/100 Mbps
Connection requirements Cat-5 UTP cable or better (100m maximum length), direct connection to wired network switch ports only, dedicated LAN or VLAN
Line voltage requirements 100 VAC -240 VAC, 50/60 Hz
Dimensions (H/W/D) 5.25” x 19” x 15.2” (133 mm x 483 mm x 386 mm)
Weight 16.6 lb (7.5 kg)

Amplifiers

2-Channel

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Crystal-clear, breathtaking, seat-shaking cinema sound is here with our DCA Series Digital Cinema Amplifiers. Five 2-channel and two 4-channel models offer power points from 200 to 1700 watts per channel in a two rack, 21 pound amplifier. With QSC’s exclusive PowerLight® switching technology you’ll hear ultra-powerful bass and superior highs in every scene.

  • QSC DCA1222
  • QSC DCA1622
  • QSC DCA2422
  • QSC DCA3422

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4-Channel

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The latest advances in sound system technology such as Dolby Digital Surround-EX and tri-amplification require more amplifier channels than ever before. That’s why we designed our newest DCA amplifiers to give you four channels of power in a compact package that doesn’t eat up precious rack space. And, compared to the cost of two stereo amplifiers, you’ll find they leave more room in your budget as well. In addition to their superior performance we’ve packed these amps with useful features designed specifically for the cinema market.

  • QSC DCA1644
  • QSC DCA1824

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QSC ISA 750

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Designed as a cost-effective solution specifically for sound contractors, the ISA Series features seven models including four low impedance models (ISA 280, ISA 450, ISA 750, ISA 1350) rated for 2-ohm operation, and three “Ti” versions with isolated 25, 70 and 100 volt outputs for distributed audio systems (ISA 300Ti, ISA 500Ti, ISA 800Ti). Versatile loading options and a comprehensive feature set make the ISA Series a rugged, cost-effective power solution for any permanently installed sound system.

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Monitors

Digital Cinema Monitor

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QSC’s Digital Cinema Monitors provide signal processing and monitor functions in a single integrated system. Designed to be used with QSC’s Digital Cinema Amplifiers (DCAs), DCMs optimize loudspeaker performance while simplifying cinema sound system wiring and configuration. The DCM 10D and DCM 30D cover cinema systems ranging from three to five screen channels, and are configurable for bi-amp, tri-amp or quad-amp operation. DCMs are also compatible with all cinema processor formats including Dolby Digital Surround-EX and DTS-ES.

  • DCM-10D
  • DCM-30D

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Speakers

SC-423

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Developed specifically for the unique requirements of professional motion picture playback, the SC-423 extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-423 is a three-way, selectable bi or tri-amplified screen channel loudspeaker system comprised of two main units – the MH-1063 mid-high frequency system and the LF-4215 low-frequency system.

Specification:
Nominal Coverage 90° horizontal by +20 to -30° vertical
Frequency Range (-6 dB) 32 Hz -16 kHz
Crossover Frequency 250 & 1700 Hz, 24 dB per octave

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SC-434

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Developed specifically for the unique requirements of professional motion picture playback, the SC-434 extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-434 is a four-way, selectable tri or quad-amplified screen channel loudspeaker system comprised of two main units–the MHV-1090 high-frequency system and the LF-4315 low-frequency system.

Specification:
Nominal Coverage 90° horizontal by +20 to -30° vertical
Frequency Range (-6 dB) 33 – 20 kHz
Crossover Frequency 250, 1700 and 6000 Hz, 24 dB per octave

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SC-323

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Developed specifically for the unique requirements of professional motion picture playback, the SC-323 extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-323 is a three-way, selectable bi or tri-amplified screen channel loudspeaker system comprised of two main units – the MH-1063 mid-high frequency system and the LF-3215 low-frequency system.

Specification:
Nominal Coverage 90° horizontal by +20 to -30° vertical
Frequency Range (-6 dB) 33 Hz -16 kHz
Crossover Frequency 250 & 1700 Hz, 24 dB per octave

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SR-26

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Developed specifically for the unique requirements of professional motion picture playback, QSC extends its commitment to the cinema market with the introduction of the SR-26 Cinema Surround Loudspeaker. As a member of QSC’s DCS Digital Cinema Speaker Series, the SR-26 offers high-power handling, excellent sensitivity, and extended bass response in a very compact enclosure.

Specification:
Frequency Range1
(-6dB, Half space) 48-20,000 Hz
(-10dB, Half space) 35-20,000 Hz
Nominal Coverage 90° horizontal x 50 ° vertical
(averaged from 1 kHz to 10 kHz, -6 dB)
Directivity Index 7.9 dB
Q 6.2
Maximum Output2 Calculated Peak at 121 dB
rated power Calculated Continuous 115 dB
Impedance 8 ohms nominal
Maximum Input Power3(100 hours of 6db crest factor IEC 268 noise spectrum) 100 watts RMS
(2 hours of 6db crest factor pink noise, 50 – 20,000 Hz, AES method) 150 watts RMS
Recommended Amplifier Power 300 watts RMS maximum into 8 ohms
Sensitivity 1 watt/1 meter, half space 94 dB
Crossover Frequency 2.6 kHz
Recommended Processing Subsonic filter at 50 Hz as provided by QSC DCA amplifiers
Connectors Barrier strip screw terminals accept up to #10 AWG stranded wire
Transducers 2 x 6.5″ long throw low frequency transducers
1″ titanium diaphragm compression driver on a CD horn
Enclosure Plywood, baffle angle is 15° downward
Dimensions 14″ W x 23″; H x 11.75″ D (363 mm x 589 mm x 299 mm)
Weight 33 lbs. (15 kg)
1. All frequency ranges specified refer to measured free field response (half space, 2pi).
2. Calculated SPL at 1m, (half space, 2pi), speaker operating at rated RMS power with pink noise within specified frequency range.
3. Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal crest factor.

Subwoofers

SB-5218

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Part of the DCS Digital Cinema Speaker Series, QSC’s SB-5218 and SB-7218 subwoofers offer a unique solution that addresses the requirements of digital motion picture soundtracks. Featuring dual 18″ low frequency transducers mounted in ported enclosures, these systems extend response to the lowest audible frequency.

Specification:
Frequency Range1
(-6dB, Half space) 24-100 Hz
(-10dB, Half space) 19-250 Hz
Nominal Coverage n/a
Maximum Output2
Calculated Peak at

135 dB
rated power
Calculated Continuous
129 dB
Impedance 4 ohms nominal
Maximum Input Power3 (100 hours of 6db crest factor IEC 268 noise spectrum) 800 watts RMS
(2 hours of 6db crest factor pink noise, 50 – 20,000 Hz, AES method) 1000 watts RMS
Recommended Amplifier Power 1600 watts RMS maximum
Sensitivity 1 watt/1 meter, half space 99.5 dB
Transducers Two 18″ (457mm) 500 watt high-efficiency subwoofer transducers featuring 4″ (100mm) copper voice coils on Kapton formers
Recommended Processing LF boost Freq. = 25 Hz
Q = 2.0
Gain = +6 dB
provided by QSC, SF-3 or DCM
Connectors Barrier strip screw terminals accept up to #10 AWG stranded wire
Enclosure B6 alignment, vented enclosure with symmetrical port design, tuned to 25 Hz, constructed of MDF and heavily braced. Features vandal resistant woofer mounting bolts.
Dimensions 48″ wide x 30″ high x 24″ deep (1220mm x 762mm x 610mm)
Weight 205 lbs (93 kg)
1. All frequency ranges specified refer to measured free field response (half space, 2pi).
2. Calculated SPL at 1m, (half space, 2pi), speaker operating at rated RMS power with pink noise within specified frequency range.
3. Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal crest factor.

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SB-15121

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Part of the DCS Digital Cinema Speaker Series, QSC’s SB-5218 and SB-7218 subwoofers offer a unique solution that addresses the requirements of digital motion picture soundtracks. Featuring dual 18″ low frequency transducers mounted in ported enclosures, these systems extend response to the lowest audible frequency.

Specification:
Frequency Range1
(-6dB, Half space) 23.8 Hz – 250 Hz
(-10dB, Half space) 21.5 Hz – 250 Hz
Maximum Output2
Calculated Peak at 137 dB SPL
rated power
Calculated Continuous
131 dB SPL
Impedance 4 ohms nominal
Maximum Input Power3
100 hours of 6db crest factor pink noise, 25 Hz – 250 Hz 1500 W RMS
2 hours of 6db crest factor pink noise, 25 Hz – 250 Hz, AES method 2500 W RMS
Recommended Amplifier Power 3400 W RMS maximum / 1200 W RMS minimum
Sensitivity 1 watt/1 meter, half space 99 dB 40 Hz – 100 Hz
Nominal Coverage Omnidirectional (80 Hz)
Transducers One 21″ (533 mm) high efficiency subwoofer transducer featuring a vented 6″ (153 mm) copper voice coil on a fiberglass former. High excursion/low distortion design, with extremely high power handling and low thermal and port compression. Neodymium magnet to provide a very high force factor and linear excursion.
Recommended Processing HPF at 20 Hz, minimum 12 dB / Octave slope
Connectors Barrier strip screw terminals accept up to #10 AWG stranded wire. Four terminals; two inputs and two parrallel outputs.
Enclosure Vented enclosure with symmetrical port design, tuned to 25 Hz, constructed of medium density fibre-board and heavily braced. Features vandal resistant woofer mounting bolts.
Dimensions 48.8″ x 30″ x 24″ (1238 mm x 762 mm x 610 mm) including feet
Net Weight 231 lb (105 kg)
Shipping Weight 257 lb (114 kg)
1. All frequency ranges specified refer to measured free field response (half space, 2pi).
2. Calculated SPL at 1m, (half space, 2pi), speaker operating at rated RMS power with pink noise within specified frequency range.
3. Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal crest factor.