QSC MHV-1090F, User Manual

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Suspension
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 or
placement. 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 regarding physical equipment installation. Ensure that all local, state and national regulations regarding the
safety and operation of loudspeakers and related equipment are understood and adhered to.
Ensure all attachment points are installed and correctly tightened in order to maintain enclosure’s rated strength. Additionally, air
leaks resulting from missing hardware will degrade the loudspeaker’s performance. Use only QSC’s M10 forged shoulder eye bolts.
Contact QSC Technical Services department for complete information.
Aiming
The aiming axis of the HF and MF horns is tilted down 10 degrees relative to the cabinet and this should be taken into account when adjusting
the coverage in the room. In general, the aiming axis of the horns should be directed at the prime seating area 2/3 of the way back or across the
auditorium. Slight adjustments may be needed to achieve the best possible compromise when covering the near and far seating area.
Connections
Amplifier connections to the MHV-1090F are made on the rear panel via a Neutrik NL4P Speakon
TM
connector supplied by the installer. This 4
conductor connector provides power to both the MF and HF/VHF sections of the MHV-1090. The MF connections use the 1+ and 1- terminals and the
HF/VHF connections use the 2+ and 2- terminals. Pre-made Speakon cables using high grade, 4 conductor stranded wire are readily available from a
number of suppliers and is highly recommended.
MF HF/VHF
1+ 1- 2+ 2-
POS NEG POS NEG
INPUT
PINOUT
NOTE! Maintain proper loudspeaker connection polarity throughout the entire system for maximum performance. Do not apply full
range signal to the MHV-1090! All required signal processing must be done before the signal is applied to the loudspeaker.