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20” (508 mm)

39”

(991 mm)

30” (762 mm)

Cinema Mid

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High Loudspeaker System User Manual

MH

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1075C 

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

Introduction

The MH-1075C “mid-high pack” provides the mid and high frequency components of 

three-way screen channel loudspeaker systems for high performance cinema applica-

tions. 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, 3.0” (75mm) titanium diaphragm 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 con-

ventional horn loudspeakers. Both horns feature broad horizontal and vertical cover-

age 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-1075C loudspeaker includes 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-1075C components come pre-assembled to reduce field assembly 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, LLC Refer all servicing to quali-
fied 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

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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

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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

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000352

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A

© Copyright 2012, QSC Audio Products, LLC

QSC® is a registered trademark of QSC Audio Products, LLC

“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

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6175 Sales & Marketing (714) 957

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7100 or toll free (USA only) (800) 854

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4079

Customer Service(714) 957

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7150 or toll free (USA only) (800) 772

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2834

*TD

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000352

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Содержание MH-1075C

Страница 1: ...ers 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 i...

Страница 2: ...ge 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 desi...

Страница 3: ...for maximum performance Do not apply full range signal to the MH 1075C There is a mid high passive crossover for bi amp mode only There is no crossover connected when operating in tri amp mode A prote...

Страница 4: ...minals marked INPUT HI and the mid frequency signal to the terminals marked INPUT MID TRI AMP Mode one amplifier channel is used for the low frequency cabinet one amplifier channel for the mids and on...

Страница 5: ...e Mid Freq 105 dB SPL 1 watt 1 meter Tri amp mode High Freq 108 dB SPL 1 watt 1 meter Bi amp mode 105 dB SPL 1 watt 1 meter Crossover Frequencies Tri amp mode 250 Hertz or higher 24dB octave and 1 7k...

Страница 6: ...l 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...

Страница 7: ...ores de frecuencia media y alta Se requieren amplificadores separados y un cruce activo para el canal de frecuencia baja y el canal de frecuencia media alta El ajuste tri amp desactiva el cruce intern...

Страница 8: ...rar r pida y f cilmente la cobertura deseada Para aplicaciones t picas el punto de orientaci n debe ser el asiento central de la fila posterior del auditorio Si ya se instal la pantalla de la sala de...

Страница 9: ...para el modo bi amp Cuando se opera en el modo tri amp no hay un cruce conectado Siempre est activa una red de protecci n Todo el procesamiento requerido de se ales se debe hacer antes de aplicar la...

Страница 10: ...ara la caja de baja frecuencia un canal del amplificador para las frecuencias medias y un canal del amplificador para las frecuencias altas El conmutador de modo del sistema MH 1075C est ajustado en T...

Страница 11: ...Modo Tri amp Alta frecuencia SPL 108 dB 1 vatio 1 metro Modo Bi amp SPL 105 dB SPL 1 vatio 1 metro Frecuencias de cruce Modo Tri amp 250 Hertz o m s 24dB octava y 1 7k Hertz 24dB octava Modo Bi amp 2...

Страница 12: ...a garant a le otorga derechos legales espec ficos Esta garant a limitada es libremente transferible durante el per odo de la misma El cliente podr a gozar de derechos adicionales que podr an variar de...

Страница 13: ...teurs fournit un filtre passif entre les tages d attaque moyenne et haute fr quence Des amplificateurs s par s et un filtre actif sont n cessaires pour le canal basse fr quence et moyenne haute fr que...

Страница 14: ...lement et rapidement la couverture souhait e Pour des applications typiques le point de vis e doit tre le fauteuil central au fond de la salle de cin ma Si l cran de la salle de cin ma a d j t install...

Страница 15: ...e haute fr quence pour le mode deux amplificateurs uniquement Aucun filtre passif n est connect en mode trois amplificateurs Un r seau de protection est toujours actif L ensemble du traitement du sign...

Страница 16: ...sse fr quence un deuxi me est utilis pour les moyennes fr quences et un troisi me est utilis pour les hautes fr quences Le s lecteur de mode du MH 1075C est sur position TRI AMP ce qui signifie que le...

Страница 17: ...ion sonore 105 dB 1 W 1 m Mode Tri amp Haute fr quence Niveau de pression sonore 108 dB 1 W 1 m Mode Bi amp Niveau de pression sonore 105 dB 1 W 1 m Fr quences du filtre passif Mode Tri amp 250 Hz ou...

Страница 18: ...enue pour responsable de dommages accessoires et ou indirects Cette garantie vous accorde des droits sp cifiques Cette garantie limit e est librement cessible durant sa p riode de validit Le client po...

Страница 19: ...Hochfrequenztreibern F r den Niederfrequenzkanal und den Mittel Hoch Kanal werden separate Verst rker und ein aktives Crossover ben tigt Die Tri Amp Einstellung deaktiviert das interne Mittel Hoch Cro...

Страница 20: ...typische Anwendungen sollte mit der Visiereinrichtung auf den mittleren Sitz in der letzten Reihe des Kinosaals gezielt werden Wenn die Kinoleinwand bereits installiert wurde kann eine Taschenlampe a...

Страница 21: ...en Bi Amp Modus ist ein passives Mittel Hoch Crossover Kabel vorgesehen Beim Betrieb im Tri Amp Modus ist kein Crossover Kabel angeschlossen Ein Schutznetzwerk ist jederzeit aktiv Die gesamte erforder...

Страница 22: ...wird f r das Niederfrequenzgeh use einer f r die Mittelfrequenzen und einer f r die Hochfrequenzen benutzt Der MH 1075C Modusschalter ist auf TRI AMP gesetzt mit Umgehung des internen passiven Mittel...

Страница 23: ...uenz 105 dB SPL 1 W 1 m Tri Amp Modus Hochfrequenz 108 dB SPL 1 W 1 m Bi Amp Modus 105 dB SPL 1 W 1 m Crossover Frequenzen Tri Amp Modus 250 Hz oder h her 24 dB Oktave und 1 7 kHz 24 dB Oktave Bi Amp...

Страница 24: ...en Datumscode entfernt oder unkenntlich gemacht wurde QSC ist f r keine Neben und oder Folgesch den haftbar Diese Garantie gew hrt Ihnen bestimmte Rechte Diese beschr nkte Garantie ist w hrend der Gar...

Страница 25: ...10 254mm 3 0 75mm MH 1075C 18dB LF MH MH 1075C QSC QSC Audio Product QSC Audio Product TD 000352 00 A 2012 QSC Audio Products LLC QSC QSC Audio Products LLC QSC QSC 1675 MacArthur Blvd Costa Mesa CA...

Страница 26: ...CH 2 3 20mm M8 QSC MH 1075C 200 MH 1075C...

Страница 27: ...CH 3 LF Series Cabinet MH 1075C DCM DCA CH2 CH1 Mid High Program Low Frequency Program MH 1075C 10 AWG 6mm2 MH 1075C MH 1075C MH 1075C...

Страница 28: ...CH 4 LF Series Cabinet MH 1075C DCM DCA High Frequency Program DCA Low Frequency Program Mid Frequency Program MH 1075C...

Страница 29: ...8 400 16K 135 5 dB SPL 1m 133 dB SPL 1m 135 5 dB SPL 1m 8 275 W AES 2 80 W AES 2 250 W IEC 8 105 dB SPL 1 1 108 dB SPL 1 1 105 dB SPL 1 1 250 24dB 1 7 24dB 250 24dB 1 7 18 dB 10 AWG 6mm2 10 1 5 38mm 3...

Страница 30: ...Audio Products QSC Audio Products LLC 1675 MacArthur Boulevard Costa Mesa CA 92626 1468 USA 714 754 6175 714 957 7100 800 854 4079 714 957 7150 800 772 2834 714 754 6174 714 754 6173 www qsccinema com...

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