QSC MH-1063 Manual

QSC Højttaler MH-1063

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*TD-000180-00*

Cinema Mid-High Loudspeaker System User Manual

MH-1063 10” (254mm) mid, 2.5” (63mm) compression driver

MH-1075 10” (254mm) mid, 3.0” (75mm) compression driver

Introduction

The MH-1063 and MH-1075 “mid-high packs” provide the mid and high frequency

components of three-way screen channel loudspeaker systems for high performance

cinema applications. They were designed to operate with and be directly mounted on

QSC’s cinema low frequency enclosures.

Mid frequencies are reproduced with a 10” (254mm) high-efficiency, phase-ring

loaded driver mounted on a custom designed cinema horn. The high-frequency driver

is a large format, 2.5” (63mm, MH-1063) or 3.0” (75mm, MH-1075) titanium dia-

phragm compression driver mounted on a custom high-frequency cinema horn. The

high frequency horn is a low-distortion waveguide providing highly articulate dialogue

without coloration associated with conventional horn loudspeakers. Both horns fea-

ture broad horizontal and vertical coverage angles to ensure coverage of every seat in

the auditorium. The driver assemblies are mounted on an adjustable pan and tilt

bracket that has an integral aiming sight, simplifying installation.

The MH-1063 and MH-1075 loudspeakers include a driver protection and crossover

network to assure reliable operation. DC blocking capacitors protect against DC or

low-frequency signals that could damage an unprotected driver. Power limiter circuitry

protects the driver from over-powering and an 18dB/octave crossover seamlessly

blends the high and mid frequency elements. Outboard processing is required to form

the crossover between the LF and MH loudspeakers.

Bi-amp or tri-amp operation is possible using a selector switch mounted on the con-

nections panel. The bi-amp setting provides a passive crossover network between mid

and high drivers. Separate amplifiers and an active crossover are required for the low

frequency channel and the mid-high channel. Tri-amp setting disables the internal

mid-high crossover and each driver is driven independently by its own amplifier and

active crossover; one for the low, one for the mid, and one for the high frequencies.

The MH-1063 and MH-1075 components come pre-assembled to reduce field assem-

bly time. Three bolts are all that are required to secure the mid-high assembly to the

top of a QSC low frequency enclosure.

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, trans-

ducers, 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. TD-000180-00 rev.A

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

Settings

BI-AMP / TRI-AMP Operating Mode Selection

Set the operating mode selector switch to BI-AMP or TRI-AMP, depending on your application setup.

Mounting

Attaching to Low Frequency Enclosure

The mid-high loudspeaker assembly attaches to the top of the QSC low frequency cabinet 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 com-

pound when installing the bolts to prevent loosening due to vibration. Do not fully tighten the mounting hardware before aiming (see

below).

Aiming

Aim the horn in the horizontal plane (pan) before tightening the attachment hardware. Adjust the vertical tilt with the mid-high vertical

adjustment bracket. The mid-high assembly is equipped with an aiming sight to assist in achieving desired coverage quickly and easily.

For typical applications, the aim point should be the center seat in the back row of the auditorium. If the cinema screen has already

been installed, a flashlight placed at the desired aiming point can be seen through the screen perforations in a darkened auditorium.

Where the sight holes are located: How to use the sights:

Aim point:

BI-AMP-When set to BI-AMP, the MH-1063 and MH-1075 accepts mid-

high frequency signals on one set of inputs and uses an internal crossover

network between the mid- and high-frequency drivers. The signal applied

to the mid-high loudspeaker assembly must not contain low-frequency

content (below 200 Hz).

TRI-AMP- When set to TRI-AMP, the MH-1063 and MH-1075 accepts

separate mid- and high-frequency signals on two sets of inputs. The inter-

nal crossover network is bypassed and only the protective circuitry for the

H.F. driver remains. Each of the driver’s signals must have the appropriate

signal processing before operating.

Do not connect amplifiers directly to the driver inputs!

Always use the input terminal strip.

Produkt Specifikationer

Mærke:	QSC
Kategori:	Højttaler
Model:	MH-1063

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