QSC SC-412C Manual de Usario

QSC Vocero SC-412C

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Developed specifically for the unique requirements

of professional motion picture playback, the SC-412

extends QSC’s commitment to the cinema market. As

a member of the DCS Digital Cinema Speaker Series,

the SC-412 is a two-way, bi-amplified screen channel

loudspeaker system comprised of two main units—the

HF-75 high-frequency system and the LF-4115 low-

frequency system.

The HF-75 high-frequency system features a 3 large "

format (75mm) titanium diaphragm compression

driver mounted on a custom designed high-frequency

cinema horn with an adjustable pan and tilt bracket.

The HF-75 includes a driver protection and equalization

network. DC blocking capacitors protect against DC or

low-frequency signals that would likely destroy an

unprotected driver. Power limiter circuitry protects the

driver from overpowering and a response correction

filter smoothes the frequency response of the horn/

driver combination. The driver and equalization

network provides for more reliable operation, ensuring

the show will go on.

The LF-4115 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 1000 Hz, depending upon the high-

frequency system requirements.

The SC-412 is designed for ease of installation.

The HF-75 components come pre-assembled to

reduce field assembly time. Three bolts are all that

are required to secure the HF-75 to the top of the

LF-4115 enclosure.

SC-412

Cinema Loudspeaker System

Specifications SC-412

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

Frequency Range 33 Hz - 16 kHz (-6 dB)

Crossover Frequency 700 Hz, 24 dB per octave

LF-4115 HF-75

Impedance 4 8Ω Ω

Sensitivity 1 watt /1 meter, 93.5 dB 107.5 dB

half space

Maximum Input Power1

8 hours of 6 db crest factor 400 W RMS 60 W RMS

IEC 268 noise spectrum

2 hours of 6 db crest factor 500 W RMS 80 W RMS

pink noise, 50 Hz - 20 kHz,

AES method

Recommended Amplifier Power 800 W RMS maximum 100 W RMS maximum

Recommended Processing Subsonic filter below 30 Hz, 4th order LR crossover at 700 Hz

> 18 dB per octave

Connectors Barrier strip screw terminals Barrier strip screw terminals

accept up to #10 AWG accept up to #10 AWG

stranded wire stranded wire

Transducers One 15" (381mm) high efficiency, 1.5" (38mm) exit, 3" titanium

extended bass woofer featuring a diaphragm compression driver

4" copper voice coil

Enclosure Quasi B4 alignment, ported Tilt/Pan Bracket

enclosure with fully flared ports, ±10° vertical tilt

symmetrical port design, tuned to ±10° horizontal pan

36 Hz, constructed of MDF and

heavily braced. Features vandal

resistant woofer mounting bolts

Dimensions (HWD) 18.5" x 30" x 20.3" 16" x 30" x 20"

(470 mm x 762 mm x 516 mm) (406 mm x 762 mm x 508 mm)

Weight - Net 83 lbs (38 kg) 40 lbs (18.4 kg)

System Weight 123 lbs (56.4 kg)

Baffle Cut-Out 35.5" 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.

Features

• Two-way, bi-amplified screen channel system

• SC-412 provides 90° horizontal by +20° to -30° vertical coverage

• Low-distortion waveguides provide highly articulate dialogue

• Shallow depth (20") facilitates installation

SC-412

Dimensions

qscaudio.com

Specifications subject to change without notice.

1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174

SC-412 Spec Sheet - 03/10/06

Top

Side

21.53"

546.9 mm

20.25"

514.4 mm

30"

762 mm

Front

33.83"

859.3 mm

15.46"

392.6 mm

18.38"

466.8 mm

9.7"

246.4 mm

101.6 mm

20.25"

514.4 mm

*TD-000149-00*

Cinema Loudspeaker Systems User Manual

HF-75 High Frequency Component

Introduction

The HF-75 is the high frequency component of the SC-412 and SC-422 two-

way, biamplified screen channel loudspeakers for high performance cinema

applications. The system is shipped as two separate components: the HF-75

high frequency system and the LF-4115 or LF-4215 woofer system.

The HF-75 high-frequency system features a large format, 3” (75mm) tita-

nium diaphragm compression driver mounted on a custom designed high-

frequency cinema horn with an adjustable pan and tilt bracket. The horn fea-

tures broad horizontal and vertical coverage angles to ensure coverage of

every seat in the auditorium. The horn is a low-distortion waveguide provid-

ing highly articulate dialogue without the “honky” coloration associated

with conventional horn loudspeakers.

The HF-75 includes a driver protection and equalization network. DC block-

ing capacitors protect against DC or low-frequency signals that would likely

destroy an unprotected driver. Power limiter circuitry protects the driver from

over-powering and a response correction filter smoothes the frequency

response of the horn/driver combination. The driver and equalization net-

work provides for more reliable operation, ensuring the show will go on.

The HF-75 components come pre-assembled to reduce field assembly time.

Three bolts are all that are required to secure the HF-75 to the top of the low

frequency enclosure.

Mounting

Refer to the illustration for mounting information. The HF-75 attaches to the

top of the LF-4115 or LF-4215 with three 5/16-18 bolts, 0.75” long, with lock

washers. We recommend the use of serviceable thread locking compound

when installing the bolts to prevent loosening due to vibration. Aim the horn

in the horizontal plane (pan) before tightening. Adjust the vertical tilt with

the bracket adjustment.

Install in accordance with QSC Audio Product’s instructions

and a licensed, professional engineer. Only use attachments,

mounts, accessories, or brackets specified by QSC Audio

Products, Inc. Refer all servicing to qualified personnel. Ser-

vicing is required when the apparatus has been damaged in

any way.

WARNING! Before placing, installing, rigging, or suspending

any speaker product, inspect all hardware, suspension, cab-

inets, transducers, brackets and associated equipment for

damage. Any missing, corroded, deformed or non-load rated

component could significantly reduce the strength of the

installation, placement, or array. Any such condition

severely reduces the safety of the installation and should be

immediately corrected. Use only hardware which is rated for

the loading conditions of the installation and any possible

short-term unexpected overloading. Never exceed the rating

of the hardware or equipment. Consult a licensed, profes-

sional engineer when any doubt or questions arise regarding

a physical equipment installation. TD-000149-00 rev.D

QSC® is a registered trademark of QSC Audio Products, Inc.

“QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office

1675 MacArthur Blvd., Costa Mesa, CA, 92626 USA

Main Number (714) 754-6175 Sales & Marketing (714) 957-7100 or toll free (USA only) (800) 854-4079

Customer Service(714) 957-7150 or toll free (USA only) (800) 772-2834

Especificaciones del producto

Marca:	QSC
Categoría:	Vocero
Modelo:	SC-412C
Color del producto:	Zwart
Peso.:	30400 g
Ancho:	437 mm
Profundidad:	889 mm
Altura:	178 mm
Peso del embalaje:	47200 g
Interruptor encendido / apagado:	Ja
Familia de procesadores:	Intel® Xeon®
Modelo de procesador:	E5-2689 v4
red LAN:	Ja
Puerto(s) VGA (D-Sub):	1
Número de puertos Ethernet LAN (RJ-45):	4
Suministro de red:	2000 W
Certificados de sostenibilidad:	RoHS
Conecta y reproduce:	Ja
Tipo de procesador:	Ja
LAN Ethernet, velocidades de transferencia de datos:	10,100,1000 Mbit/s
Temperatura de almacenamiento:	-40 - 70 °C
numero de fans:	7 ventilator(en)
Zócalo del procesador:	LGA 2011 (Socket R)
Sistema de autobús:	8 GT/s
Versión de ranuras PCI Express:	3.0
Memoria interna máxima:	1000 GB
Humedad de almacenamiento:	5 - 95 procent
Tipo de vivienda:	Rack (1U)
El exceso de apoyo de los fans:	Ja
ETC:	Ja
Factor de forma de memoria:	240-pin DIMM
Tipo de interfaz Ethernet:	Fast Ethernet, Gigabit Ethernet
placa base con chipset:	Intel® C612
Tecnología de cableado Ethernet de cobre:	10GBASE-T, 100BASE-TX, 1000BASE-T
Interfaces de unidad de almacenamiento compatibles:	Serial Attached SCSI (SAS)-2, Serial ATA III
Ranuras PCI Express x8:	4
voltaje de la memoria:	1.35, 1.5 V
Tipos de incursión:	0, 1,5, 10
Número de conectores SATA III:	2
Procesadores compatibles:	Intel® Xeon®
Número de procesadores admitidos:	2
Memoria UDIMM máxima:	512 GB
Número de ranuras DIMM:	16
Admite velocidades de reloj RDIMM:	800,1066,1333,1600,1866 MHz
Compatible con capacidades del módulo DIMM:	1GB, 2GB, 4GB, 8GB, 16GB, 32GB
Número de unidades de almacenamiento admitidas:	72
Tamaños de unidades de almacenamiento admitidos:	3.5 "
Tipos de memoria soportados:	DDR3-SDRAM
Bahías HDD de intercambio en caliente:	Ja
voltaje-de-entrada-de-CA:	100 - 240 V
Frecuencia-de-entrada-de-CA:	50 - 60 Hz
Temperatura de funcionamiento (TT):	10 - 35 °C
Humedad relativa de funcionamiento (VV):	8 - 90 procent
Número de fuentes de alimentación redundantes instaladas:	1
Tipo de bus del sistema:	QuickPath Interconnect (QPI)
Diámetro del ventilador:	90 mm
tipo de BIOS:	AMI
Tamaño de la memoria del BIOS:	16 Mbit
Versión del BIOS de administración del sistema (SMBIOS):	2.3
Número de conectores SATA II:	4
Puerto IPMI LAN (RJ-45):	Ja
Corriente de salida CC (+5 V):	4 A
Caché máximo:	30 MB
Número de puertos SAS:	8
Funciones de BIOS:	APM 1.2, PCI 2.2, Plug & Play, SMBIOS 2.3, UEFI