QSC Audio SC-322 specifications Frequency Range

HF-63 Specifications (subject to change without notice)

Frequency Range:	400 - 16k Hz (-6 dB, full space)
Nominal Coverage:	90° horizontal X +15 to -35° vertical (50° total, adjustable mount provides for vertical plane adjustments. The hori-
	zontal plane can be adjusted by altering mounting position on the low frequency enclosure before tightening bolts.
DI:	9.0 dB (600 to 16,000 Hertz average)
Q:	8.0 (600 to 16,000 Hertz average)
Maximum Output:	131.5 dB SPL calculated peak, 1 meter, half space.
Impedance:	8 ohms nominal

9.0ohms minimum at 8,000 Hertz 30 ohms maximum at 475 Hertz

Maximum Input Power: 50 watts rms (8 hours of 6 dB crest factor pink noise, 1,000 to 10,000 Hertz)

60 watts rms (2 hours of 6 dB crest factor pink noise, 1,000 - 10,000 Hertz, AES method)

Sensitivity:	107.5 dB half space, 1 watt, 1 meter
Crossover Frequency:	1,000 Hertz or higher, 24 dB per octave
Connectors:	Barrier strip screw terminals accept up to #10 AWG stranded wire. Four terminals: (two HF INPUT and two post
	compensation HF OUTPUT). HF OUTPUT factory wired to compression driver.
Transducers:	1.5” (38mm) exit, 2.5” (63.5mm) 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:	30” wide X 16” high X 20” deep (762mm X 406mm X 508mm)
Weight:	50 lbs. (shipping), 40 lbs. (net), 22.7/18.4 kilograms

SPL and Impedance vs. Frequency

	SPL
SPL (dB)	Impedance (Ohms)
	Impedance

Frequency (Hertz)