HF-75 Loudspeaker User Manual
Contents
1. 10 high efficiency midrange phase ring loaded HF 1 5 38mm exit 3 76mm titanium diaphragm compression driver Attaches to top of the low frequency cabinet using three 5 16 18 x 3 4 long bolts 39 high x 30 wide x 20 deep 991 x 762 x 508mm 85 Ib 39 kg net SPL dB SPL dB MH 1063 SPL and Impedance vs Frequency 55 20 Hz 50 100 200 500 1K 2K 5K 10K 20K Frequency Hertz MH 1075 SPL and Impedance vs Frequency 55 20 Hz 50 100 200 500 1K 2K 5K 10K 20K Frequency Hertz Impedance Ohms Impedance Ohms Warranty USA only other countries see your dealer or distributor Disclaimer OSC 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 OSC 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 pro2. MH 1063 MH 1075 to the lower set of input terminals marked BI AMP BI AMP Mode one amplifier channel is used for the low frequency cabinet and one amplifier channel for the mid high assembly The MH 1063 MH 1075 mode switch is set to BI AMP Active crossovers are used before amplification The mid high assembly pro vides a passive crossover between the mid and high frequency drivers P MH 1063 MH 1075 f ee LF series Cabinet I I MID HI BI AMP DCM F TEES atin rnk i lo oe a a Qoo000000 O b mime Mid High Program Low Frequency Program ai ie a DCA ot aa 5 CH2 te 2 Connections continued TRI AMP mode connections When the mode switch is set to TRI AMP connect the high frequency signal to the terminals 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 fre quency cabinet one amplifier channel for the mids and one amplifier channel for the high frequencies The MH 1063 MH 1075 mode switch i
3. 3 World Wide Web www gscaudio com E mail info qscaudio com service qscaudio com aoc QSC Audio Products Inc 1675 MacArthur Boulevard Costa Mesa California 92626 USA 2004 OSC and the OSC logo are registered with the U S Patent and Trademark Office
4. al crossover network is bypassed and only the protective circuitry for the F driver remains Each of the driver s signals must have the appropriate aid O H F dri ins Each of the driver s signal have th i lt signal processing before operating pave Ae Do not connect amplifiers directly to the driver inputs Always use the input terminal strip J TRI AMP V Connections INPUT Terminals The MH 1063 and MH 1075 have barrier strip screw terminals that accept up to 10 AWG 5 3mm stranded loudspeaker wire Observe proper polarity Use the largest wire size and shortest wire length for the application OUTPUT Terminals The OUTPUT terminals are factory connected to the drivers These terminals should ONLY be connected to their respective driver Do not connect signals to these terminals as all protection and equalization circuitry will be bypassed Do not apply full range signal to the MH 1063 MH 1075 There is a mid high passive crossover for bi amp mode NOTE Maintain proper loudspeaker connection polarity throughout the entire system for maximum performance only There is no crossover connected when operating in tri amp mode A protection network is always active All required signal processing must be done before the signal is applied to the loudspeaker Do not connect any sig nal to the upper sets of OUTPUT terminals BI AMP mode connections Ensure the mode switch is set to BI AMP connect the input to the
5. icing is required when the apparatus has been damaged in any way am 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 y he corroded deformed or non load rated component could significantly 20 508mm 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 ernie doubt or questions arise regarding a physical equipment installation Copyright 2004 OSC Audio Products Inc QSC is a registered trademark of OSC Audio Products Inc QSC and the QSC logo are registered with the U S Patent and Trademark Office 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 t
6. ifying 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 SA N 4 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 OSC Audio Product s instructions and a Saa licensed professional engineer Only use attachments mounts g TH A accessories or brackets specified by QSC Audio Products Inc Refer all servicing to qualified personnel Serv
7. ight 180 15k 6dB full space 90 horizontal X 20 to 30 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 9 dB 400 to 16k Hertz average 8 400 to 16k Hertz average Tri amp mode Mid Freq 135 5 dB SPL calculated peak 1m full space Tri amp mode High Freg 133 dB SPL calculated peak 1m full space Bi amp mode 135 5 dB SPL calculated peak 1m full space Bi amp mode 8 ohms nominal 6 4 ohms minimum at 1500 Hertz 91 ohms maximum at 150 Hertz Tri amp mode Mid Freq 275 W AES method 2 hrs Tri amp ode High Freq 80 W AES method 2 hrs Bi amp mode 250 W IEC method 8 hrs Tri amp mode Mid Freq 105 dB SPL 1 watt 1 meter Tri amp mode High Freq 108 dB SPL 1 watt 1 meter Bi amp mode 135 5 dB SPL 1 watt 1 meter Tri amp mode 250 Hertz or higher 24dB octave and 1 7k Hertz 24dB octave Bi amp mode 250 Hertz or higher 24dB octave 1 7k Hertz 18 dB octave electrical slope HF driver power limiting circuit never disrupts continuity Swit chable operation between Bi Amp and Tri amp operation Tri amp setting removes crossover circuit from signal leaving power limiter and DC blocking capacitors Barrier strip screw terminals accept up to 10 AWG stranded wire Four terminals two HF input and two MF input for Tri amp mode operation MF
8. ighten 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 fi fi Aim point 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 INPUTS HI l oF ra BI AMP When set to BI AMP the MH 1063 and MH 1075 accepts mid miD IG i high frequency signals on one set of inputs and uses an internal crossover network between the mid and high frequency drivers The signal applied BI AMP We to the mid high loudspeaker assembly must not contain low frequency content below 200 Hz TRI AMP V INPUTS HI I TRI AMP When set to TRI AMP the MH 1063 and MH 1075 accepts lt separate mid and high frequency signals on two sets of inputs The inter n
9. minimum at 1500 Hertz 91 ohms maximum at 150 Hertz Tri amp mode Mid Freq 275 W AES method 2 hrs Tri amp mode High Freq 60 W AES method 2 hrs Bi amp mode 250 W IEC method 8 hrs Tri amp mode Mid Freq 105 dB SPL 1 watt 1 meter Tri amp mode High Freq 107 5 dB SPL 1 watt 1 meter Bi amp mode 135 dB SPL 1 watt 1 meter Tri amp mode 250 Hertz or higher 24dB octave and 1 7k Hertz 24dB octave Bi amp mode 250 Hertz or higher 24dB octave 1 7k Hertz 18 dB octave electrical slope HF driver power limiting circuit never disrupts continuity Swit chable operation between Bi Amp and Tri amp operation Tri amp setting removes crossover circuit from signal leaving power limiter and DC blocking capacitors Barrier strip screw terminals accept up to 10 AWG stranded wire Four terminals two HF input and two MF input for Tri amp mode operation MF 10 high efficiency midrange phase ring loaded HF 1 5 38mm exit 2 5 63 5mm titanium diaphragm compression driver Attaches to top of the low frequency cabinet using three 5 16 18 x 3 4 long bolts 39 high x 30 wide x 20 deep 991 x 762 x 508mm 85 Ib 39 kg net MH 1075 Specifications subject to change without notice Freq Range Nominal Coverage DI Q Max Output Impedance Maximum Input Power Sensitivity Crossover Frequencies Crossover Network Connectors Transducers Mounting Hardware Size We
10. rm 1675 MacArthur Blvd Costa Mesa CA 92626 USA Cp Main Number 714 754 6175 Sales amp 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 Cinema Mid High Loudspeaker System User Manual M H 1 063 10 254mm mid 2 5 63mm compression driver n M H 1 075 10 254mm mid 3 0 75mm compression driver i 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 30 i ae 762mm gt 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 r 7 high frequency horn is a low distortion waveguide providing highly articulate dialogue without coloration associated with conventional horn loudspeakers Both horns fea FOR 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 simpl
11. s set to TRI AMP bypassing the internal mid high passive cross over Active or passive crossovers are used before amplification Power limiter and DC blocking remain active gt MH 1063 MH 1075 Demy E i 000000000 High 5 Frequency Program Mid 2 oon ___ Frequency 2 Aes i ie Program e h 4 f MID D A i B ame IEE Low Frequency LF series Pranie Cabinet DCA MH 1063 Specifications subject to change without notice Freq Range Nominal Coverage DI Q Max Output Impedance Maximum Input Power Sensitivity Crossover Frequency Crossover Network Connectors Transducers Mounting Hardware Size Weight 180 15k 6dB full space 90 horizontal X 20 to 30 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 9 dB 400 to 16k Hertz average 8 400 to 16k Hertz average Tri amp mode Mid Freq 135 5 dB SPL calculated peak 1m full space Tri amp mode High Freq 131 5 dB SPL calculated peak 1m full space Bi amp mode 135 dB SPL calculated peak 1m full space Bi amp mode 8 ohms nominal 7 9 ohms
12. vides 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 OSC 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 lim ited 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 OSC s war ranty 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 OSC Audio Products Inc 1675 MacArthur Boulevard Costa Mesa CA 92626 1468 USA Telephone Numbers Main Number 714 754 6175 Sales amp 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 Facsimile Numbers Sales amp Marketing Fax 714 754 6174 Customer Service Fax 714 754 617
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