Qsc-audio SC-424 Bedienungsanleitung PDF herunterladen

Developed specifically for the unique requirements

of professional motion picture playback, the SC-424

extends QSC’s commitment to the cinema market.

As a member of the DCS Digital Cinema Speaker

Series, the SC-424 is a four-way, selectable tri or

quad-amplified screen channel loudspeaker system

comprised of two main units - the MHV-1090 mid-

high-very high-frequency system and the LF-4215

low-frequency system.

The MHV-1090 mid-high-very high system features

a high output, horn loaded 10" midrange cone

driver and a coaxial neodymium high-frequency/very

high-frequency compression driver . The MHV-1090

includes a 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" 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 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

7000 Hz with a smooth, linear response. The large

diaphragm excursion of +/-0.8 mm results in high

output and increased power handling. The very high-

frequency driver covers the frequency range from

7000 to 22,000 Hz and eliminates the dome break

up of conventional drivers that can cause resonance

and harsh, metallic sound.

The LF-4215 dual 15” (381 mm) low-frequency

enclosure is designed specifically to address the

extended low-frequency response required for cinema

applications. The LF-4215 covers the frequency range

from 35 Hz to 250 Hz. 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-424 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.

SC-424

Cinema Loudspeaker System

Features

• Four-way selectable, tri or 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 provide highly articulate dialogue

• Shallow depth (20”) facilitates installation

• THX

™ approved for professional cinema applications

NEW!

Specifications

SC-424

Nominal Coverage 90° horizontal x +20 to -30° vertical

Frequency Range (-6 dB) 33 - 20 kHz

Active Crossover Frequencies 250, 1700 and 6000 Hz, 24 dB per octave

LF-4215 MHV-1090

Impedance 4Ω MF: 8Ω HF: 8Ω VHF: 8Ω

Sensitivity 1 watt /1 meter,

half space

99.5 dB Tri-amp

MF:105 dB

HF/VHF: 110 dB

Quad-amp

MF: 105 dB

HF: 110 dB

VHF: 110 dB

Maximum Input Power

8 hours of 6 db crest factor

IEC 268 noise spectrum

800 W RMS MF: 275 W RMS

HF/VHF: 230 W RMS

MF: 275 W RMS

HF: 150 W RMS

VHF: 80 W RMS

2 hours of 6 db crest factor

pink noise, 50 Hz - 20 kHz,

AES method

1000 W RMS MF: 800 W RMS

HF/VHF: 500 W RMS maximum

Recommended

Amplifier Power

1600 W RMS maximum MF: 800 W RMS

HF: 500 W RMS

VHF: 300 W RMS maximum

Recommended Processing Subsonic filter below 30 Hz,

>18 dB per octave

4th order LR crossover at 250, 1700 and

6000 Hz via QSC DCM or QSControl.net

Connectors Barrier strip screw terminals accept up to #10 AWG stranded wire

Transducers Two 15" (381mm) high

efficiency, extended bass

woofer featuring a 4" copper

voice coils

MF: 10" high-effeciency, horn-loaded

cone with pahse plug

HF/VHF: coaxial neodymium compression

driver with 3.5" (90 mm) HF diaphram

and 1.75" (44 mm) VHF diaphram

Enclosure Quasi B4 alignment, ported

enclosure with fully flared

ports, symmetrical port design,

tuned to 36 Hz, constructed

of MDF and heavily braced.

Features vandal resistant

woofer mounting bolts

Tilt/Pan Bracket

±10° vertical tilt

±10° horizontal pan

Dimensions (HWD) 36" x 30" x 20.3"

(910 mm x 762 mm x 516 mm)

39" x 30" x 20"

(990 mm x 762 mm x 508 mm)

Weight - Net 172 lbs (78 kg) 84 lbs (38.5 kg)

System Weight 256 lbs (116 kg)

Baffle Cut-Out 76" x 32"

1) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz - 20 kHz band limiting, 6 dB signal crest factor.

THX is a trademark of THX Ltd.

1 2

Inhaltsverzeichnis

Seite 1 - Cinema Loudspeaker System

Developed specifically for the unique requirements of professional motion picture playback, the SC-424 extends QSC’s commitment to the

Seite 2 - Dimensions

SC-424Dimensionsqscaudio.comSpecifications subject to change without notice.1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/

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Qsc-audio SC-424 Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Akustik Qsc-audio SC-424 herunter. QSC Audio SC-424 User Manual Benutzerhandbuch

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