QSC Audio SC-412 specifications Features, Specifications

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SC-412

Cinema Loudspeaker System

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

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.

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

4Ω

8Ω

 

 

 

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.

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Contents Specifications FeaturesQscaudio.com SC-412Mounting HF-75High Frequency Component IntroductionHF Input Terminals ConnectionsHF Output Terminals QSC DCM or other active crossoverWeight ConnectorsNominal Coverage Maximum OutputContacting QSC Audio Products QSC Audio Products 3 Year Limited WarrantyDisclaimer LF-4115Low Frequency Loudspeaker Introduction TD-000171-00Parallel Connection of Second LF-4115 Normal ConnectionNormal Connection Example Parallel Connection Example Impedance Ohms nominal Which can cause permanent hearing lossUpon request Allel OutputContacting QSC Audio Products Montaje Terminales de Entrada de HF ConexionesTerminales de Salida de HF DCM de QSC u otro cruce activoSPL e impedancia en función de la frecuencia DB 600 a 16,000 Hertzios como promedioSPL dB Impedancia ohmios Frecuencia hertzios Renuncia de responsabilidad Cómo comunicarse con QSC Audio ProductsGarantía limitada de 3 años de QSC Audio Products Derechos de autor 2004, QSC Audio Products, Inc EquipoConexión en paralelo de un segundo LF-4115 Conexión normalEjemplo de una conexión normal Ejemplo de conexión en paraleloProcesamiento Intervalo de frecuenciasRecomendado Cómo comunicarse con QSC Audio Products MacArthur Blvd., Costa Mesa, CA MontageBornes HF Input Entrée HF BranchementsDCM QSC ou autre filtre passif activé Impédance Ohms nominale DimensionsSensibilité ConnecteursAvis de non-responsabilité Pour contacter QSC Audio ProductsQSC Audio Products Garantie limitée de 3 ans TD-000171-00 rév. C Copyright 2004, QSC Audio Products, Inc Branchement en parallèle dun second LF-4115 Branchement normalExemple de branchement normal Plage de fréquence Traitement recommandéImpédance EnceintePour contacter QSC Audio Products Einführung Verbindungen Maximaler Ausgang Nominelle AbstrahlungImpedanz EmpfindlichkeitHaftungsausschluss Kontaktaufnahme mit QSC Audio ProductsBeschränkte Dreijahresgarantie durch QSC Audio Products MacArthur Blvd., Costa Mesa, CA, 92626 USA Paralleler Anschluss des zweiten LF-4115 Normaler AnschlussGehäuse Empfohlene VerarbeitungKontaktaufnahme mit QSC Audio Products HF-75 高频组件 HF 输出终端 SPL 保修 （仅限美国；其它国家，请联系您的经销商或分销商） LF-4115 低频扬声器 第二个 LF-4115 并联 OUTPUT。 保修 （仅限美国；其它国家，请联系您的经销商或分销商）

SC-412 specifications

The QSC Audio SC-412 is a high-performance loudspeaker designed specifically for professional audio applications. With its robust construction and advanced technologies, it delivers excellent sound quality, making it a popular choice for live performances, installations, and event spaces.

One of the standout features of the SC-412 is its powerful driver configuration. It includes two 12-inch direct-radiating woofers that provide deep, punchy bass response, complemented by a 1.75-inch exit compression driver mounted on a high-frequency horn. This configuration ensures a wide frequency range, enabling the SC-412 to reproduce everything from subtle vocal nuances to explosive rock guitar riffs with clarity and depth.

A key technology used in the SC-412 is QSC's proprietary Directivity Matched Transition (DMT) design. This advanced engineering approach ensures consistent directivity across the frequency range, providing even sound coverage in various acoustic environments. As a result, audiences experience a balanced and immersive listening experience, regardless of their position in the venue.

The cabinet construction of the SC-412 further contributes to its performance. It is built from durable, ply-birch wood and features a rugged finish, enhancing both aesthetics and durability. The enclosure is designed to minimize resonance, delivering accurate sound reproduction while ensuring that the cabinet itself does not color the audio signal. Additionally, the SC-412 includes a rear rigging point, making it easy to install in various orientations, whether flying or on a stand.

In terms of connectivity, the SC-412 features both speakON and binding post connectors, offering versatility for various setups and ensuring compatibility with a wide range of amplifiers and mixers. The loudspeaker's nominal impedance of 8 ohms allows for flexible system design and configuration.

The QSC Audio SC-412 is an excellent choice for audio professionals seeking reliability and performance. Its advanced features, like the DMT design and high-quality components, make it suitable for demanding applications in both live sound and fixed installations. With its ability to deliver powerful, clear, and consistent audio, the SC-412 stands out as a versatile solution for sound reinforcement needs. Whether used for concerts, corporate events, or permanent installations, it delivers the quality and reliability that audio professionals have come to expect from QSC.
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