QSC Audio MH-1075 - Manual (Page 6)

6
MH-1075 Specifications (subject to change without notice
Freq. Range 180 - 15k (-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 Hertz average)
Q: 8 (400 to 16k Hertz average)
Max. Output: [Tri-amp mode] Mid Freq. 135.5 dB SPL calculated peak, 1m, full space
[Tri-amp mode] High Freq. 133 dB SPL calculated peak, 1m, full space
[Bi-amp mode] 135.5 dB SPL calculated peak, 1m ,full space
Impedance: [Bi-amp mode] 8 ohms nominal
6.4 ohms minimum at 1500 Hertz
91 ohms maximum at 150 Hertz
Maximum Input Power [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.)
Sensitivity [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
Crossover Frequencies [Tri-amp mode] 250 Hertz or higher, 24dB/octave and 1.7k Hertz, 24dB/octave
[Bi-amp mode] 250 Hertz or higher, 24dB/octave
Crossover Network 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.
Connectors 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).
Transducers MF: 10" high efficiency midrange, phase-ring loaded.
HF: 1.5" (38mm) exit, 3" (76mm) titanium diaphragm compression driver.
Mounting Hardware: Attaches to top of the low frequency cabinet using three 5/16”-18 x 3/4” long bolts.
Size 39” high x 30” wide x 20” deep (991 x 762 x 508mm)
Weight 85 lb. (39 kg) net