QSC Audio ISIS Series User Manual
Page 15
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15
ISIS 122M and ISIS W-122M Specifications
Full Range Specifications (Crossover Mode switch set to Full Range, Passive)
Frequency Range (free field)
Frequency Response (-6 dB)
60-19k Hz
Usable Frequency Range (-10 dB) 50-20k Hz
Maximum Output
Calculated Continuous rms Output
120 dB SPL
Calculated Maximum Peak Output
126 dB SPL
Continuous Noise Exposure Level
119 dBA SPL
Impedance
Nominal
8 ohms
Minimum
6.8 ohms @ 15k Hz
Maximum
58 ohms @ 30 Hz
Power Rating
rms Power Handling
350 Watts, 100hrs, IEC 268-5, 50-20kHz, 6 dB crest factor
Recommended Amplifier Power
700 Watts
Sensitivity
1 W, 1 m free field
95 dB SPL
Nominal Coverage, -6 dB
Conical, 60°
Directivity Index & Q
Frequency (Hz)
DI (dB)
Q
500
4.4
2.8
1000
7.9
6.1
2000
9.5
8.8
4000
12.0
15.7
8000
11.2
13.2
16000
9.6
9.1
Bi-Amp Specifications
(Crossover Mode switch set to Bi-Amp, LF= low frequency transducer, HF= high frequency transducer)
Frequency Range (free field)
LF
HF
Frequency Response (-6 dB)
70-3.9k Hz
600-19k Hz
Usable (-10 dB)
50-4k Hz
500-20k Hz
Maximum Output
Calculated Continuous rms Output
121 dB SPL
127 dB SPL
Calculated Maximum Peak Output
127 dB SPL
133 dB SPL
Continuous Noise Exposure Level
120 dBA SPL
Impedance
Nominal
8 ohms
8 ohms
Minimum
7.9 ohms @ 305 Hz
8.5 ohms @ 4k Hz
Maximum
52 ohms @ 32 Hz
69.0 ohms @ 450 Hz
Power Rating
rms Power Handling (2 hrs., 6 dB crest factor, within usable freq. range)
350 W
80 W
Recommended Amplifier Power
700 W
160 W
Sensitivity
1 W, 1 m, free field, within usable freq. range
96 dB
108 dB
Bi-Amp with recommended DSP Parameters (
QSC DSP configurations are available at the QSC website www.qscaudio.com
)
Frequency Range (free field)
Frequency Response (-6 dB)
55-19k Hz
Usable (-10 dB)
45-20k Hz
Directivity Index & Q (free field)
Frequency (Hz)
DI (dB)
Q
500
4.5
2.8
1000
12.2
16.4
2000
9.7
9.3
4000
12.3
17.7
8000
11.0
12.5
6000
9.8
9.6
Physical
Weight
Cored Composite:
15.4 kg net, 18.6 kg gross (34 lbs. net, 41 lbs. gross)
Wood:
23.6 kg net, 26.8 kg gross (52 lbs. net, 59 lbs. gross)
Specifications are subject to change without notice.