SC-322X - Speaker QSC - Free user manual and instructions

USER MANUAL SC-322X QSC

• Passive, two-way, screen channel system
- HF-63X2 provides 90^ horizontal by +20^ to -30^ 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

Black studio speaker chamber with two speakers and a top panel (no text or symbols visible)

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, two-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" (381mm) 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 +20 to -30° vertical
Frequency Range	32 Hz - 16 kHz (-6 dB)
Impedance	4Ω
Sensitivity 1 watt/1 meter, half space	97.5 dB
Maximum Input Power ^1
2 hours of 6 db crest factor pink noise, 50 Hz - 20 kHz, AES method	300 W RMS
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 accept up to #10 AWG stranded wire, four terminals; two inputs and two parallel outputs	Barrier strip screw terminals accept up to #10 AWG stranded wire, four terminals; two inputs and two LF-outputs
Transducers	Two 15" (381mm) high efficiency, extended bass woofer featuring 3" copper voice coils	1.5" (38mm) exit, 2.5" titanium diaphragm compression driver
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)	16" x 30" x 20" (406 mm x 762 mm x 508 mm)
Weight - Net	172 lbs (78 kg)	40 lbs (18.4 kg)
System Weight	212 lbs (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.

Specifications subject to change without notice.

Cinema Loudspeaker Systems User Manual HF-63X1 and HF-63X2

High Frequency Component

Introduction

The HF-63X1 and HF-63X2 are the high frequency components of full-range, two-way screen channel loudspeaker systems for high performance cinema applications. The HF-63X1 is designed specifically for use with QSC's LF-3115 low frequency loudspeaker and the HF-63X2 for the LF-3215 loudspeaker.

The HF-63X1/X2 high-frequency system features a large format, 2.5" (63.5mm) titanium diaphragm compression driver mounted on a custom designed high-frequency cinema horn with an adjustable pan and tilt bracket. The horn features broad horizontal and vertical coverage angles to ensure coverage of every seat in the auditorium. The horn is a low-distortion waveguide providing highly articulate dialogue without coloration associated with conventional horn loudspeakers. Equipped with a passive crossover providing tailored output for the LF-3115 or LF-3215, no additional signal processing is required.

The HF-63X1/X2 components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the HF-63X1/X2 to the top of a QSC low frequency loudspeaker. Threaded inserts in the LF enclosures and matching punched hole pattern in the HF-63X1/X2 make mounting to the low frequency enclosure simple.

Mounting

Refer to the illustration for mounting information. The HF-63X1/X2 attaches to the top of the LF-3115 or LF-3215 with three 5/16-18 bolts, 0.75" long, with lock washers. This hardware ships installed on the low frequency cabinet. 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. Servicing 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, cabinets, 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, professional engineer when any doubt or questions arise regarding a physical equipment installation.

Technical line drawing of a mechanical assembly with no visible text or symbols

Technical line drawing of a mechanical assembly with no visible text or symbols

30" (762mm)

16" (406mm) 20" (508mm)

TD-000219-00 rev A © Copyright 2006. QSC Audio Products, Inc. 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

Connections

The HF-63X1/X2 has barrier strip screw terminals that accept up to #10 AWG (5.3mm ^4 ) stranded loudspeaker wire.

INPUT Terminals

Connect the amplifier's full range output signal to the HF-63X1 or HF-63X2 INPUT terminals. Observe proper polarity; the amplifier's + signal to the HF-63X1 or HF-63X2 + INPUT, the amplifier's - signal to the HF-63X1 or HF-63X2 - INPUT. Use the largest wire size and shortest wire length for the application.

HF OUT Terminals

The HF OUT terminals are factory-connected to the compression driver. These terminals should ONLY be connected to the HF-63X1 or HF-63X2 compression driver. Observe proper polarity; the + HF OUT signal to the compression driver's + input, the - HF OUT signal to the compression driver's - input.

LF OUT Terminals

The HF-63X1 is designed specifically for use with QSC's LF-3115 low frequency loudspeaker and the HF-63X2 for the LF-3215 loudspeaker. The LF OUT terminals are factory-terminated to lead wires with spade-lugs. These should ONLY be connected to QSC's model LF-3115 or model LF-3215 low frequency loudspeaker. Observe proper polarity; connect the + LF OUT signal to the low frequency loudspeaker's + input, the - LF OUT signal to the low frequency loudspeaker's - input.

HF-63X1 or HF63X2 Compression Driver To LF-3115 or LF-3215 The HF-63X1 is designed specifically for use with QSC's LF-3115 low fre- quency loudspeaker and the HF-63X2 for the LF-3215 loudspeaker. HF OUT connection ter- minals. Connect to HF- 63X1 or HF-63X2 com- pression driver. LF OUT connection terminals. Connect to LF-3115 or LF 3215 loudspeaker INPUT terminals. HF-63X1 or HF-63X2 INPUT connection terminals INPUT + Amplifier *NOTE SPEAKERS INTERNALLY CONNECTED IN PARALLEL. FOR INDIVIDUAL CONNECTION: REMOVE PANEL, CUT YELLOW AND BLUE JUMPER WIREX. (For instructions see User Manual)

HF-63X1 and HF-63X2 Specifications (subject to change without notice)

Frequency Range: 1,300 - 16,000 Hz (-6 dB)

Nominal Coverage:

90° horizontal X +15 to -35° vertical (50° total, adjustable mount provides for vertical plane adjustments. The horizontal plane can be adjusted by altering mounting position on the low frequency enclosure before tightening bolts.

DI: 9.0 dB (600 to 16,000 Hertz average)

Q: 8.0 (600 to 16,000 Hertz average)

SPL (peak): HF-63X1 with LF-3115: 123 dB

HF-63X2 with LF-3215: 126 dB

Impedance: HF-63X1 with LF-3115: 8 Ohms nominal

HF-63X2 with LF-3215: 4 Ohms nominal

Maximum Input Power: HF-63X1 with LF-3115: 150 W

(2 hours EIA 426B) HF-63X2 with LF-3215: 300 W

Sensitivity: HF-63X1 with LF-3115: 95.0 dB

HF-63X2 with LF-3215: 97.5 dB

Crossover Frequency: 1,300 Hz

Connectors:

Barrier strip screw terminals accept up to #10 AWG stranded wire. Six terminals: Two full-range input terminals, two HF OUT terminals (factory wired to compression driver), and two LF OUT terminals with factory supplied wiring for connection to QSC LF-3115 or LF-3215 low frequency loudspeaker.

Transducers: 1.5" (38mm) exit, 2.5" (63.5mm) titanium diaphragm compression driver.

Mounting Hardware:

Attaches to top of the LF-3115 or LF-3215 low frequency cabinet using three 5/16"-18 x 3/4" long bolts.

Size:

30" wide X 16" high X 20" deep (762mm X 406mm X 508mm)

Weight:

50 lbs. (shipping), 40 lbs. (net), 22.7/18.4 kilograms

Warranty (USA only; other countries, see your dealer or distributor)

Disclaimer

QSC Audio Products, Inc. is not liable for any damage to amplifiers, or any other equipment that is caused by negligence or improper installation and/or use of this loudspeaker product.

QSC Audio Products 3 Year Limited Warranty

QSC Audio Products, Inc. ("QSC") guarantees its products to be free from defective material and / or workmanship for a period of three (3) years from date of sale, and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use - provided the unit is returned to our factory or one of our authorized service stations via pre-paid transportation with a copy of proof of purchase (i.e., sales receipt). This warranty provides that the examination of the return product must indicate, in our judgment, a manufacturing defect. This warranty does not extend to any product which has been subjected to misuse, neglect, accident, improper installation, or where the date code has been removed or defaced. QSC shall not be liable for incidental and/or consequential damages. This warranty gives you specific legal rights. This limited warranty is freely transferable during the term of the warranty period.

Customer may have additional rights, which vary from state to state.

In the event that this product was manufactured for export and sale outside of the United States or its territories, then this limited warranty shall not apply. Removal of the serial number on this product, or purchase of this product from an unauthorized dealer, will void this limited warranty. Periodically, this warranty is updated. To obtain the most recent version of QSC's warranty statement, please visit www.qscaudio.com. Contact us at 800-854-4079 or visit our website at www.qscaudio.com.

Contacting QSC Audio Products

Mailing address: QSC Audio Products, Inc.

1675 MacArthur Boulevard

Costa Mesa, CA 92626-1468 USA

Telephone Numbers:

Main Number [phone]

Sales & Marketing [phone] or toll free (USA only) [phone]

Customer Service(714) 957-7150 or toll free (USA only) [phone]

Facsimile Numbers:

Sales & Marketing Fax[phone]

Customer Service Fax[phone]

World Wide Web:www.qscaudio.com

E-mail:[e-mail]

[e-mail]

Cinema Loudspeaker Systems User Manual

LF-3215 Low Frequency Loudspeaker

Introduction

The LF-3215 dual 15" (381mm) low frequency enclosure is designed specifically for cinema applications. Meeting cinema requirements for extended low frequency response differentiates the LF-3215 from more conventional "rock-and-roll" woofer systems. The LF-3215 covers the frequency range from 32 Hertz to 1500 Hertz, depending upon the high frequency system requirements. With its tight spacing between woofers, the LF-3215 offers improved coupling and keeps coverage angles wide over a greater frequency range than more widely spaced designs.

The 300 watt, 15" transducers are well suited for cinema use. They feature 3" (76mm) voice coils, 120 oz.(3.4kg) ceramic magnets, and vented pole pieces to ensure cool operation. Cooler temperatures increase transducer lifespan and decrease the problem of power compression at high power levels. The suspension and voice coil of each transducer have been designed to provide low distortion and high impact bass at high power levels.

The enclosure is constructed of high quality medium density fiberboard panels with stiffening braces on all panels and features separate woofer chambers. This prevents over-excursion of a transducer caused by improper box loading in the rare event of a transducer failure. The eight stiffening braces reduce panel resonance.

Both internal and external port openings are fully radiused ensuring smooth air flow at high power. This prevents audible port turbulence noise.

With symmetrical port loading, bass ports are evenly spaced on each side of the transducers, making internal pressure more uniform across the back surface of the transducer. This prevents the cone from being displaced to one side or another by unbalanced forces, reducing the chance of driving the voice coil out of the center of the gap at high power levels.

Three T-nuts in the top of the enclosure provide easy mounting of QSC's HF-63 high frequency system, or MH-1063 mid-high frequency system.

Enclosure is not designed to be suspended, flown, or rigged. Do not suspend, fly, or rig this enclosure.

This product is capable of producing sound pressure levels that can permanently damage human hearing. Always keep sound pressure levels in the listening area below levels that can damage human hearing.

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. Servicing 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, cabinets, 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, professional engineer when any doubt or questions arise regarding a physical equipment installation.

Technical line drawing of a two-tiered speaker chamber with circular cutouts and mounting holes (no text or symbols)

Mounting points for mid- high or high frequency system

30" (762mm)

4" (102mm) 35" (889mm) 18" 457mm) 20" 508mm

TD-000173-00 rev.C
© Copyright 2004, QSC Audio Products, Inc.
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

Connections

Normal Connection

The LF-3215 has barrier strip screw terminals for connection. The terminals accept up to #10 AWG (5.3mm ^2 ) stranded loudspeaker wiring. Use the largest wire size and shortest wire length possible for the application. Observe the polarity markings and keep polarity consistent throughout the system for best performance.

Normal Connection Example:

Amplifier capable of driving 4 ohm loads + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + -

Parallel Connection of Second LF-3215

The terminals marker SPK2 may be used to connect another LF-3215 in parallel. Connect the wires as shown in the illustration, at right. Note: If the LF-3215's internal wiring has been modified in any way, this may not function. If this is the case, remove the terminal cup and verify the presence of the factory yellow jumper and blue jumper wires; remedy as required or have the loudspeaker serviced.

Parallel Connection Example:

Amplifier capable of driving 2 ohm loads For instructions on Our Manual For instructions on Our Manual

Individual Transducer Connection (requires modification)

The transducers are wired in parallel inside the enclosure. If individual transducer connection is required, remove the terminal cup and remove the yellow and the blue jumper wires that are connected between the SPK1 and SPK2 terminals. Replace the terminal cup and mark the enclosure with a note of the modification.

Individual Transducer Connection Example:

CAUTION! Requires removal of terminal cup and removing both the yellow and the blue jumper wires that connect the SPK1 and SPK2 terminals.

INTUUSIP30® SP42® "INTUUSIP30" INTUUSIP30 CONNECTED INTUUSIP30 IN VEREYAL CONNECT TO REMAIN POWER, LET YELLOW AND BHAZ AMOUNTED. Pre-interview use for Manual.

LF-3215 Specifications (subject to change without notice)

Frequency Range: 32 - 1500 Hertz (-6dB)

28 - 3300 Hertz useable range (-10dB)

Nominal Coverage: 100° horizontal X 55° vertical at 600 Hertz

Maximum Output:

132.5 dB SPL calculated peak, 1 meter, half space, at rated rms power with 6 dB crest factor pink noise input, 25 - 250 Hertz. 126.5 dBA SPL calculated maximum continuous, 1 meter. The dBA scale is typically used to identify sound sources which can cause permanent hearing loss.

Impedance: 4 ohms nominal

4.1 ohms minimum, 180 Hertz

55 ohms maximum, 21 Hertz

Maximum Input Power:

600 watts rms (8 hours of 6 dB crest factor pink noise, 40 - 400 Hertz)

750 watts rms (2 hours of 6 dB crest factor pink noise, 40 - 400 Hertz)

Recommended amplifier power capability- 1200 watts rms maximum into 4 ohms (per LF-3215)

Sensitivity: 98.5 dB half space, 97.5 dB full space, 35 - 1000 Hertz, 1 watt, 1 meter

Recommended Processing:

Subsonic filter below 30 Hertz, >18 dB per octave, maximum recommended crossover frequency is 1000 Hertz. QSC DSP configurations are available at www.qscaudio.com. Parameters for alternative processing hardware are available upon request.

Connectors:

Barrier strip screw terminals accept up to #10 AWG stranded wire. Four terminals: (two INPUT and two PARALLEL OUT). Transducers are internally wired in parallel. For independent transducer connection, remove blue jumper wire and yellow jumper wire on internal-side of terminal cup and mark enclosure accordingly.

Transducers:

Two 15" (381mm) high efficiency low frequency transducers featuring vented 3" (76mm) copper voice coils on Kapton® formers. High excursion/low distortion design, with extremely high power handling, and low thermal and port compression.

Enclosure:

Quasi B4 alignment, ported enclosure with fully flared ports, low turbulence symmetrical port design, tuned to 36 Hertz, constructed of medium density fibreboard and heavily braced. Features vandal resistant woofer mounting bolts.

Size: 30" wide X 35" high X 20" deep (762 mm X 889 mm X 508 mm)

Weight: 195 lbs. shipping, 172 lbs. net (88/78 kg.)

Warranty (USA only; other countries, see your dealer or distributor)

Disclaimer

QSC Audio Products, Inc. is not liable for any damage to amplifiers, or any other equipment that is caused by negligence or improper installation and/or use of this loudspeaker product.

QSC Audio Products 3 Year Limited Warranty

QSC Audio Products, Inc. ("QSC") guarantees its products to be free from defective material and / or workmanship for a period of three (3) years from date of sale, and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use - provided the unit is returned to our factory or one of our authorized service stations via pre-paid transportation with a copy of proof of purchase (i.e., sales receipt). This warranty provides that the examination of the return product must indicate, in our judgment, a manufacturing defect. This warranty does not extend to any product which has been subjected to misuse, neglect, accident, improper installation, or where the date code has been removed or defaced. QSC shall not be liable for incidental and/or consequential damages. This warranty gives you specific legal rights. This limited warranty is freely transferable during the term of the warranty period.

Customer may have additional rights, which vary from state to state.

In the event that this product was manufactured for export and sale outside of the United States or its territories, then this limited warranty shall not apply. Removal of the serial number on this product, or purchase of this product from an unauthorized dealer, will void this limited warranty. Periodically, this warranty is updated. To obtain the most recent version of QSC's warranty statement, please visit www.qscaudio.com. Contact us at 800-854-4079 or visit our website at www.qscaudio.com.

Contacting QSC Audio Products

Mailing address: QSC Audio Products, Inc.

1675 MacArthur Boulevard

Costa Mesa, CA 92626-1468 USA

Telephone Numbers:

Main Number [phone]

Sales & Marketing [phone] or toll free (USA only) [phone]

Customer Service(714) 957-7150 or toll free (USA only) [phone]

Facsimile Numbers:

Sales & Marketing Fax[phone]

Customer Service Fax[phone]

World Wide Web:www.qscaudio.com

E-mail:[e-mail]

[e-mail]

QSC™

Line drawing of a two-tiered speaker box with circular cutouts and a small inset component (no text or symbols)

30" (762mm)

4" (102mm) 35" (889mm) 18" 457mm) 20" 508mm

TD-000173-00 rev. C

© Derechos de autor 2004, QSC Audio Products, Inc.

[e-mail]

Technical line drawing of a two-tiered speaker chamber with circular cutouts and a small inset component (no text or symbols)

30" (762mm)

4" (102mm) 35" (889mm) 18" 457mm) 20" 508mm

Branchements

Branchement normal

Adresse postale : QSC Audio Products, Inc.

1675 MacArthur Boulevard

[e-mail]

Technical line drawing of a two-tiered speaker chamber with circular cutouts and a small inset component (no text or symbols)

30" (762mm)

4" (102mm) 35" (889mm) 18" 457mm) 20" 508mm

Verbindungen

Normaler Anschluss

[e-mail]

QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA

Technical line drawing of a two-tiered speaker box with circular cutouts and mounting holes (no text or symbols)

30" (762mm)

4" (102mm) 35" (889mm) 18" 457mm) 20" 508mm

连接

正常连接

[e-mail]

QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA