EAW MQH1346e - Manual

EASTERN ACOUSTIC WORKS
One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email [email protected] • Web http://www.eaw.com
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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IP 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
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.
Application Usage: Install
Houses of Worship Auditoriums
Theatres Arenas
Performing Arts Centers Stadiums
PERFORMANCE
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 8
Upper LF 8
MF 8
HF 8
Power Handling, AES Standard (Watts)
Lower LF 600
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