QSC Audio MH-1075 Specifications subject to change without notice, Crossover Frequencies

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

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