EAW technical specifications TECHNICAL SPECIFICATIONS MQH1346e, Features, Description, Arenas

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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

EASTERN ACOUSTIC WORKS

One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email info@eaw.com • 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