QSC MHV-1090 User Manual - page 5
MHV-1090 Specifications
(subject to change without notice)
Freq. Range
180 - 20k Hz (-6dB, full space)
Nominal Coverage
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.
DI:
9 dB (400 to 16k Hz average)
Q:
8 (400 to 16k Hz average)
Max. Output:, calculated
Mid-frequency 135.5 dB SPL
(1 meter, full space)
Tri-amp mode: high-frequency/very high-frequency 138 dB SPL
Quad-amp mode: high-frequency 138 dB SPL, very high-frequency 135 dB SPL
Impedance:
Tri-amp mode: 8 ohms nominal, mid-, high-, and very high-frequency
Quad-amp mode: 8 ohms nominal, mid-, high-, and very high-frequency
Maximum Input Power
Mid-frequency: 275 W
(AES method, 2 hours)
Tri-amp mode: high/very high-frequency 155 W (calculated, sum of high and very high-frequency individual ratings)
Quad-amp mode: high-frequency 85 W, very high-frequency 70 W
Sensitivity
Mid-frequency: 105 dB SPL
(1 Watt, 1 meter)
Tri-amp mode: high/very high-frequency 110 dB SPL
Quad-amp mode: high-frequency 110 dB SPL, very high-frequency 110 dB SPL
Crossover Frequencies
Tri-amp mode: mid-frequency 250 Hz or higher, high-frequency/very-frequency 1.7 kHz, both 24 dB/octave
Quad-amp mode: mid-frequency 250 Hz or higher, high-frequency 1.7 kHz, very high-frequency 6.0 kHz, all 24 dB/
octave
Crossover Network
High-frequency to very high-frequency crossover at 7 kHz, 12 dB per octave, only in tri-amp mode. Quad-amp mode
switch setting removes crossover circuit from signal path, but leaves DC blocking capacitors in circuit.
Connectors
Mid-frequency driver: barrier strip screw terminals accept up to #10 AWG stranded wire
High-frequency, very high-frequency drivers: barrier strip screw terminals accept up to #10 AWG stranded wire
Tri-amp mode connect high-frequency/very high-frequency program only to VHF/HF INPUTS terminals
Quad-amp mode connect high-frequency program to HF INPUTS terminals and connect very high-frequency program
to VHF INPUTS terminals.
Transducers
Mid-frequency: 10" high efficiency mid-range, phase-ring loaded
High-frequency: 1.5" exit, 3.5" voice coil polyester diaphragm coaxial compression driver
Very High-frequency: 1.5" exit, 1.75" voice coil polyester diaphragm coaxial compression driver
Mounting Hardware:
Attaches to top of QSC’s low-frequency cinema enclosures using three M8 bolts, hex head, 20mm minimum length
(supplied with low-frequency enclosure)
Size
39” high x 30” wide x 20” deep (991 x 762 x 508mm)
Weight
73.5 lb. (33 kg) net