EAW Speaker MQH1346e User Manual

TECHNICAL SPECIFICATIONS MQH1346e  
FEATURES  
• Full-range, 3-way system  
• 2x slot-loaded 15-in LF; horn-loaded 10-in MF; 2-in  
Neodymium HF  
• LF woofers spaced for directional control to below  
200 Hz  
• Asymmetrical (down-angled) 40° x 60° beamwidth  
DESCRIPTION  
A 3-way, quad-amplified full-range system in a vented trap-  
ezoidal enclosure. Includes dual, slot-loaded 15-in woofers,  
a horn-loaded 10-in MF cone with Radial Phase Plug™, and a  
2-in exit/3-in diaphragm Neodymium compression driver. The  
MF and HF horns provide an asymmetrical 40° x 60°  
beamwidth. The enclosure is vertically configured for array-  
ing in horizontal rows, and features a comprehensive system  
of 3/8”-16 threaded suspension points.  
APPLICATIONS  
PERFORMANCE  
The MQH1346e represents a highly specialized approach de-  
veloped to solve difficulties in larger venues. It provides  
unique, down-angled coverage by using specially designed  
asymmetrical MF and HF horns. Dual 15-in woofers are sepa-  
rated at an optimal distance to provide significant off-axis  
attenuation to below 200 Hz. To avoid problematic lobing in  
the upper LF range, discrete signal processing reduces the  
input to one LF driver while allowing the other to continue  
to work up into the lower midrange. This more evenly matches  
the MF horns beamwidth while assisting in maintaining pat-  
tern control through the entire crossover region. The  
MQH1346e requires four separate amplifier channels (quad-  
amplification) and digital signal processing in order to achieve  
the pattern control described.  
Frequency Response  
±3 dB 75 Hz to 15 kHz  
-10 dB 42 Hz  
Axial Sensitivity (dB SPL, 1 Watt @ 1m)  
LowerLF 92  
Upper LF 94  
MF 110  
HF 109  
Impedance (Ohms)  
Lower LF  
Upper LF  
MF  
8
8
8
8
Application Usage: Install  
HF  
Houses of Worship  
Theatres  
Performing Arts Centers  
Auditoriums  
Arenas  
Power Handling, AES Standard (Watts)  
Lower LF 600  
Stadiums  
Upper LF 600  
MF 400  
HF 150  
Calculated Maximum Output (dB SPL @ 1m)  
Lower LF Peak 126.0  
Upper LF Peak 128.0  
MF Peak 142.0  
HF Peak 137.0  
Lower LF Long Term 120.0  
Upper LF Long term 122.0  
MF Long Term 136.0  
HF Long Term 131.0  
Nominal Coverage Angle, -6 dB Points (degrees)  
Horizontal 40  
Vertical 60  
Recommended High-Pass Frequency  
24 dB/Octave 45 Hz  
EASTERN ACOUSTIC WORKS  
EAW products are continually improved. All specifications are therefore subject to change without notice. •MQH1346e-0002685/2p/April 2002 Printed In USA  
 

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