Frequency Response, 1 meter
on-axis, swept-sine in anechoic
environment:
63 Hz - 18.5 kHz (±3 dB)
Usable Low Frequency Limit
(-10 dB point):
48 Hz
Power Handling:
Full Range:
700 W continuous
1,400 W program
2,800 W peak
Low Frequency Section:
500 W continuous
1,000 W program
2,000 W peak
High Frequency Section:
100 W continuous
200 W program
400 W peak
Sound Pressure Level, 1 Watt,
1 meter in anechoic
environment:
Full Range:
96.0 dB SPL, (2.83 V input)
Low Frequency Section:
97.0 dB SPL, (2.83 V input)
High Frequency Section:
109.0 dB SPL, (2.83 V input)
Maximum Sound Pressure Level
(1 meter):
Full Range:
124.5 dB SPL continuous
130.5 dB SPL peak
Low Frequency Section:
124.0 dB SPL continuous
130.0 dB SPL peak
High Frequency Section:
129.0 dB SPL continuous
135.0 dB SPL peak
Radiation Angle measured at
-6 dB point of polar response:
500 Hz – 1.6 kHz:
Horiz. 105o± 15o
Vert. 115o± 15o
1.6 kHz - 5 kHz:
Horiz. 60o± 10o
Vert. 50o± 20o
5 kHz - 16 kHz:
Horiz. 55o± 5o
Vert. 30o± 5o
Directivity Factor, Q (Mean):
16.18 ± 9.18
Directivity Index, Di (Mean):
11.13 dB ± 3.13 dB
Transducer Complement:
Low Frequency Section:
1x 12in. woofer, vented
1208-8 SPS
High Frequency Section:
1x 1.6 in. exit/100 mm voice coil
compression driver on Quadratic
Throat Waveguide™
44 XT (w/o adapter) on a CH®-
642qt
Box Tuning Frequency:
Low Frequency Section:
55 Hz
Harmonic Distortion:
1% rated power
2nd Harmonic:
100 Hz: 3.22%
1 kHz: 0.52%
SPECIFICATIONS
ILS™1264H