QSC Audio Speaker ISIS I 282H User Guide

I-282H  
ISIS Series Loudspeaker  
Features  
• Dual 8", 2-way system – in a lightweight, weather-resistant,  
multipurpose enclosure featuring a heavy duty, powder coated  
aluminum grille  
• Advanced Directivity™ rotatable waveguide – (90° x 60°)  
enables the loudspeaker to deliver accurately focused sound,  
regardless of the enclosure’s mounted orientation  
• High power capability – rated at 450 watts (IEC)  
• Switchable biamp or passive operation – with parallel outputs  
• Contemporary style, weather resistant enclosure and  
components – ideal for a wide range of applications  
• Two parallel Speakon® connectors – for quick, secure audio  
input setup  
• Pole cup, yoke mount, and monitor feet – included for  
versatile mounting options  
The QSC I-282H is a dual 8",  
2-way, full range loudspeaker  
with contemporary styling that  
Specifications  
Configuration  
Compact 2-way, ported enclosure  
easily integrates into multiple  
environments. Pole mounted,  
truss mounted, or used as a floor  
monitor/stage fill, these injection  
molded speakers are an excellent  
choice for musicians, mobile  
entertainers, and anyone else  
needing a high-quality, lightweight  
SR package that sounds superb,  
is visually unobtrusive, and with  
its built-in handles, is easy to  
transport.  
Transducers  
Low-frequency Transducers  
High-frequency Transducer  
Dual 8" high power, treated paper cone, 2" voice coil, neodymium magnet  
1" exit high output compression driver, 1.7" diameter voice coil  
Frequency Range1  
Frequency Response (-6 dB)  
Usable Frequency Range (-10 dB) 60 Hz – 29.5 kHz  
80 Hz – 27.7 kHz  
Maximum Output (SPL at 1 m)2  
Continuous  
Peak  
Fullrange (passive mode)LF (biamp mode)  
HF (biamp mode)  
120  
126  
124  
130  
121  
127  
Nominal Impedance  
Passive  
LF  
HF  
8Ω  
8Ω  
8Ω  
Power Rating3  
Passive  
450 W (IEC, 8 hours)  
LF  
HF  
The I-282H enclosure incorporates  
two 8" weather resistant, LF  
transducers with heavy-duty  
double roll cloth surrounds and  
a 1" exit HF compression driver.  
The HF driver is coupled with  
QSC’s unique Advanced Directivity  
Rotatable Waveguide—enabling the  
loudspeaker to deliver accurately  
focused sound, regardless of its  
orientation. For quick and secure  
input setup, the I-282H provides  
two parallel Speakon connectors.  
500 W (IEC 8 hours, 50 Hz – 2 kHz) 45 W (IEC 8 hours, 2 kHz – 20 kHz)  
Recommended Max Amp Power  
Sensitivity (SPL, 1 W at 1 m)4  
Passive  
900 W RMS  
Passive  
LF  
HF  
93 dB (100 Hz – 10 kHz) 97 dB (200 Hz – 2 kHz)  
104 dB (2 kHz – 10 kHz)  
Nominal Coverage  
Bass Loading  
Enclosure  
90°H x 60°V (-6 dB) | rotatable to 60°H x 90°V  
Ported, tuned to 60 Hz  
E
Material  
Injection molded, weather resistant, high impact polystyrene  
Finish  
Black  
Weather Resistance  
Grille  
Yes  
An ideal solution for a variety of  
mobile SR applications, the I-282H  
includes a pole cup for pole  
mounting with either 1 1/2" or 1  
3/8" diameters. Or by using the  
included yoke mount with swivel  
extension feet, the I282-H can be  
vertically or horizontally mounted  
for pan and tilt focusing or used as  
a floor monitor. For truss mounting,  
the yoke accepts most industry  
standard truss clamps.  
Heavy duty powder coated aluminum  
Connectors  
Two Speakon® NL4FC connectors wired in parallel, passive/active switchable  
Mounting Hardware  
Weight – Net / Shipping  
Included: Pole cup and Yoke mount  
28.5 lb (12.9 kg) / 36.8 lb (16.7 kg)  
1) All frequency ranges specified refer to measured free field response (full space, 4π)  
2) Calculated SPL at 1 m, full space (4π), speaker operating at rated RMS power with pink noise within specified frequency range  
3) Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz – 20 kHz band limiting, 6 dB signal  
crest factor, 8 hours  
4) Based on nominal impedance, measured in full-space  
 

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