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4x 15-inch 4-way Cinema Screen Channel Loudspeaker System
Series: DCS
Model: SC-444
- Four-way selectable, tri/quad-amplified screen channel system
- Unique HF/VHF diaphragm has less mass than traditional diaphragms resulting in exceptional dynamic range, extended high frequency response and lower distortion
- LF-4215 is constructed of MDF and is heavily braced
- Low-distortion waveguides provides highly articulate dialogue
- Shallow depth (20-inch) facilitates installation
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SC-444 is four-way, selectable tri/quad-amplified screen channel loudspeaker system comprised of three main units MHV-1090 high-frequency system and dual LF-4215 low-frequency systems. MHV-1090 mid-high-very high system features a high output, horn loaded 10-inch midrange cone driver and a coaxial neodymium high-frequency/very high-frequency compression driver. The MHV-1090 includes driver protection network and a passive crossover for tri-amp operation. The protection circuitry prevents low-frequency signals from damaging the high-frequency and very high-frequency driver. A high power 10-inch cone driver allows operation as low as 250Hz and the advanced phase plug coupling permits a crossover point of up to 1800Hz to the high-frequency horn. This ensures that most of the dialog range is reproduced by a single element, for unmatched intelligibility. The coaxial neodymium high-frequency/very high frequency compression driver provides a dramatic improvement in dynamic response, clarity and transparency. The annular high-frequency diaphragm covers the frequency range between 1800 and 7000Hz with a smooth, linear response. The large diaphragm excursion of +/-0.8mm results in high output and increased power handling. The very high frequency driver covers the frequency range from 7000 to 22000Hz and eliminates the dome break up of conventional drivers that can cause resonance and harsh, metallic sound. The LF-4215 dual 15-inch (381mm) low-frequency enclosures are designed specifically to address the extended low-frequency response required for cinema applications. The dual LF-4215s cover the frequency range from 35 to 250Hz. Close coupled woofers (CCW), with their tight spacing between woofers, improves coupling and keeps coverage angles wide over a greater frequency range than more widely spaced designs. The SC-444 is designed for ease of installation. The MHV-1090 components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the MHV-1090 to the top of the LF-4215 enclosure.
- Four-way selectable, tri/quad-amplified screen channel system
- Unique HF/VHF diaphragm has less mass than traditional diaphragms resulting in exceptional dynamic range, extended high frequency response and lower distortion
- LF-4215 is constructed of MDF and is heavily braced
- Low-distortion waveguides provides highly articulate dialogue
- Shallow depth (20-inch) facilitates installation
- THX approval
- RoHS Compliant
- Horizontal Symmetry - Yes
- Vertical Symmetry - Yes
- Spec Sheet available - Yes
- Product Weight: 428 lbs
- Coverage Horizontal: 90
- Coverage Vertical: -30
- Coverage Horizontal: 90 degrees
- Horizontal Symmetry: Yes
- Vertical Symmetry: Yes
- Regulatory Compliance: THX, RoHS
- Coverage Vertical: +20/-30 °
- Frequency Range: 33 to 20 kHz (-6dB)
- Baffle cut-out: 111.6 x 32 in
- Active Crossover Frequency: 250/1700/6000Hz, 24dB per octave
- Connectors: barrier strip screw terminals accept up to #10AWG stranded wire
- 2x LF-4215 impedance: 4 ohms (each)
- 2x LF-4215 sensitivity: 102.5 dB (1W/1m, half space)
- 2x LF-4215 maximum RMS input power: 800 W (8 hours of 6dB crest factor IEC 268 noise spectrum)
- 2x LF-4215 recommended RMS amplifier power: 1600 W (maximum)
- 2x LF-4215 recommended processing: subsonic filter below 30Hz, >18dB per octave
- 2x LF-4215 transducers: four 15-inch (381mm) high efficiency, extended bass woofer featuring 4-inch copper voice coil
- 2x LF-4215 dimensions: (W) 30 x (H) 72 x (D) 20.3 in
- 2x LF-4215 net weight: 344 lbs
- MHV-1090 MF/HF/VHF impedance: 8 ohms
- MHV-1090 tri-amp MF sensitivity: 105 dB (1W/1m, half space)
- MHV-1090 tri-amp HF/VHF sensitivity: 110 dB (1W/1m, half space)
- MHV-1090 MF transducers: 10-inch high-efficiency, horn-loaded cone with phase plug
- MHV-1090 HF/VHF transducers: coaxial neodymium compression driver with 3.5-inch HF diaphram and 1.75-inch VHF diaphram
- MHV-1090 tri-amp MF maximum RMS input power: 275 W (8 hours of 6dB crest factor IEC 268 noise spectrum)
- MHV-1090 quad-amp HF maximum RMS input power: 150 W (8 hours of 6dB crest factor IEC 268 noise spectrum)
- MHV-1090 tri-amp MF recommended RMS amplifier power: 800 W (maximum)
- MHV-1090 recommended processing: 4th order LR crossover at 250/1700/6000Hz via QSC DCM/QSControl.net
- MHV-1090 dimensions: (H) 39 x (W) 30 x (D) 20 in
- MHV-1090 net weight: 84 lbs
Cinema Screen Channel Loudspeaker System
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Central Ohio Audio Video
6650 Busch Blvd.
Columbus, OH 43229
USA
(614) 848-5222
http://www.centralohav.com/
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6650 Busch Blvd.
Columbus, OH 43229
Office: (877) 432-8273
Fax: (614) 848-6189