SC-322X

Cinema Loudspeaker System

Features

Passive, 2-way, screen channel system

HF-63X2 provides 90° horizontal by +15° to -35° vertical coverage

LF-3215 is constructed of MDF and features single woofer chambers

Low-distortion waveguide provides highly articulate dialogue

Shallow depth (20") facilitates installation

Developed specifically for the unique requirements of professional motion picture playback, the SC-322X extends QSC’s commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-322X is a passive, 2-way screen channel loudspeaker system comprised of two main units—the HF-63X2 high-frequency system and the LF-3215 low- frequency system.

The HF-63X2 high-frequency system features a 2.5" (63mm) titanium diaphragm compression driver mounted on a custom designed high-frequency cinema horn with an adjustable pan and tilt bracket. The HF-63X2 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-3215 dual 15" (381 mm) low-frequency enclosure is designed specifically to address the extended low- frequency response required for cinema applications.

The LF-3215 covers the frequency range from 35 Hz to 1000 Hz, depending upon the high-frequency system requirements. 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-322X is designed for ease of installation. The HF-63X2 components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the HF-63X2 to the top of the LF-3215 enclosure.

Specifications

SC-322X

 

 

 

 

Nominal Coverage

90° horizontal x +15 to -35° vertical

 

 

 

 

Frequency Range

32 Hz – 16 kHz (-6 dB)

 

 

 

 

Impedance

4Ω

 

 

 

 

Sensitivity 1 watt /1 meter,

97.5 dB

 

half space

 

 

 

 

 

Maximum Input Power1

 

 

2 hours of 6 db crest factor

300 W RMS

 

pink noise, 50 Hz – 20 kHz,

 

 

AES method

 

 

Recommended Amplifier Power

600 W RMS maximum

 

 

 

Recommended Processing

Subsonic filter below 30 Hz, > 18 dB per octave

 

 

 

 

LF-3215

HF-63X2

 

 

 

Connectors

Barrier strip screw terminals

Barrier strip screw terminals

 

accept up to #10 AWG

accept up to #10 AWG

 

stranded wire

stranded wire

 

 

 

Transducers

Two 15" (381mm) high efficiency,

1.5" (38mm) exit, 2.5" titanium

 

extended bass woofer featuring

diaphragm compression driver

 

3" copper voice coils

 

 

 

 

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)

36" x 30" x 20.3"

16" x 30" x 20"

 

(910 mm x 762 mm x 516 mm)

(406 mm x 762 mm x 508 mm)

 

 

 

Weight – Net

172 lb (78 kg)

40 lb (18.4 kg)

 

 

 

System Weight

212 lb (96.4 kg)

 

 

 

 

Baffle Cut-Out

53" 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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QSC Audio HF-63X2, LF-3215 specifications Features, Specifications

HF-63X2, LF-3215 specifications

The QSC Audio LF-3215 and HF-63X2 are premium loudspeakers designed for professional audio applications, delivering exceptional sound quality and performance. These models exemplify QSC's commitment to cutting-edge technology and engineering excellence, making them suitable for a variety of environments, including live events, installations, and mobile sound systems.

The LF-3215 is a powerful low-frequency loudspeaker that features a robust 15-inch driver, designed for high efficiency and output. With a peak power capacity of 2400 watts, this unit can handle demanding bass frequencies with ease, ensuring an impactful audio experience. The cabinet is constructed from durable plywood, providing both strength and portability while minimizing resonance. To enhance sound clarity, the LF-3215 also employs advanced passive crossover technology, which optimizes the interaction between the woofer and other speakers in the system.

On the other hand, the HF-63X2 is a high-frequency enclosure that incorporates dual 6.5-inch drivers, specifically engineered to deliver superior clarity and detail in the upper frequency ranges. The design includes a custom horn that ensures a wide dispersion pattern, allowing for even coverage throughout the listening area. This makes the HF-63X2 ideal for applications where audience engagement is crucial, such as concerts, presentations, and large gatherings.

Both the LF-3215 and HF-63X2 feature a sleek and modern aesthetic, designed to fit seamlessly into any professional setting. They come equipped with multiple mounting options, making installation straightforward and flexible. The combination of these loudspeakers creates a full-range system capable of reproducing a wide spectrum of sound, from the thumping lows of bass to the crisp highs of vocals and instruments.

The use of state-of-the-art materials and technology in both models ensures longevity and reliability in demanding conditions. Their thermal management systems help in dissipating heat, thereby maintaining optimal performance during extended use. Moreover, the QSC Q-SYS platform compatibility allows for integration with advanced audio processing and management systems, enhancing the overall versatility of the setup.

In summary, the QSC Audio LF-3215 and HF-63X2 loudspeakers represent a powerful combination of low and high-frequency technology. Their outstanding features, including high power handling, durable construction, and precise audio reproduction, make them excellent choices for professionals seeking to elevate their sound systems. Whether used in live sound or permanent installations, these loudspeakers stand out for their reliability and exceptional audio performance.