QSC LF-4115 Benutzerhandbuch

Features
• Three-way selectable, bi or tri-amplified screen channel system
• MH-1063 provides 90° horizontal by +20° to -30° vertical coverage
• LF-4115 is constructed of MDF and is heavily braced
• Low-distortion waveguides provide highly articulate dialogue
• Shallow depth (20") facilitates installation
• THX™ approved for professional cinema applications
Developed specifically for the unique requirements
of professional motion picture playback, the SC-413
extends QSC's commitment to the cinema market. As
a member of the DCS Digital Cinema Speaker Series,
the SC-413 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-4115 low-frequency system.
The MH-1063 mid-high system features a high
output, horn loaded 10" midrange cone driver and
a 2.5" (63mm) titanium diaphragm compression
driver mounted to an adjustable pan and tilt bracket.
The MH-1063 includes a driver protection network
and a passive crossover for bi-amp operation. Power
limiter circuitry protects the high-frequency driver
from overpowering. The MH-1063 provides extended
frequency coverage for the critical midrange band. A
high power 10" cone driver allows operation as low
as 250 Hz and the advanced phase plug coupling
permits a crossover point of up to 1800 Hz to the
high-frequency horn. This ensures that most of the
dialog range is reproduced by a single element for
unmatched intelligibility.
The LF-4115 single 15" (381mm) low-frequency
enclosure is designed specifically to address the
extended low-frequency response required for cinema
applications. The LF-4115 covers the frequency range
from 35 Hz to 250 Hz.
The SC-413 is designed for ease of installation.
The MH-1063 components come pre-assembled to
reduce field assembly time. Three bolts are all that
are required to secure the MH-1063 to the top of the
LF-4115 enclosure.
THX is a trademark of THX Ltd.
All manuals and user guides at all-guides.com
Specifications
Nominal Coverage
Frequency Range
Crossover Frequency
Impedance
Sensitivity 1 watt /1 meter,
half space
Maximum Input Power
8 hours of 6 db crest factor
IEC 268 noise spectrum
2 hours of 6 db crest factor
pink noise, 50 Hz - 20 kHz,
AES method
Recommended Amplifier Power 800 W RMS maximum
Recommended Processing
Connectors
Transducers
Enclosure
Dimensions (HWD)
Weight - Net
System Weight
Baffle Cut-Out
1) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz - 20 kHz band limiting, 6 dB signal crest factor.
2) Maximum input power tested in accordance with IEC 268-5 recommendations, 200 Hz - 2 kHz band limiting, 6 dB signal crest factor.
Cinema Loudspeaker System
SC-413
90° horizontal x +20 to -30° vertical
33 - 16 kHz (-6 dB)
250 and 1700 Hz, 24 dB per octave
LF-4115
4Ω
93.5 dB
1
400 W RMS
500 W RMS
Subsonic filter below 30 Hz,
> 18 dB per octave
Barrier strip screw terminals
accept up to #10 AWG
stranded wire
One 15" (381mm) high efficiency, 10" high efficiency mid range,
extended bass woofer featuring a 1.5" (38mm) exit, 2.5" titanium
4" copper voice coil
Quasi B4 alignment, ported
enclosure with fully flared ports,
symmetrical port design, tuned to ±10° horizontal pan
36 Hz, constructed of MDF and
heavily braced. Features vandal
resistant woofer mounting bolts
18.5" x 30" x 20.3"
(470 mm x 762 mm x 516 mm)
83 lbs (38 kg)
168 lbs (77 kg)
58.75" x 32"
SC-413
MH-1063
8Ω
Bi-amp Tri-amp
105 dB MF 105 dB HF 107.5 dB
2
250 W RMS 275 W RMS 60 W RMS
passive
mid-high
350 W RMS
800 W RMS maximum
4th order LR crossover at 200 and
1700 Hz via QSC DCM or QSControl.net
Barrier strip screw terminals
accept up to #10 AWG stranded wire
diaphragm compression driver
Tilt/Pan Bracket
±10° vertical tilt
39" x 30" x 20"
(990 mm x 762 mm x 508 mm)
85 lbs (39 kg)