EAW MQ1312 User manual

Frequency Response (1 W @ 1m)
±3 dB 50 Hz to 1.6 kHz
-10 dB 40 Hz
Axial Sensitivity (dB SPL, 1 Watt @ 1m)
LF 100
Impedance (Ohms) LF 3x 8
Power Handling, AES Standard (Watts)
LF 1500
Calculated Maximum Output (dB SPL)
LF Peak 137.8
LF Long Term 131.8
Nominal Coverage Angle/-6 dB points (degrees)
Horizontal 160
Vertical 60
Recommended High-Pass Frequency
24 dB/Octave 40 Hz
• Low frequency loudspeaker system
• Optimized for permanent installation only
• 3x direct radiating 12-in woofers
• Optimized to array with MQ1364, MQ1366 and
MQ1394
The new MQ Series represents the next generation of perma-
nent installation loudspeaker systems. The Series comprises
matched sets of mid/high and low frequency enclosures that
enjoy complementary dimensions and trapeziod angles to
facilitate the creation of optimized-coverage arrays. The
MQ1312 uses three direct radiating 12-in woofer cones in an
optimally tuned, vented enclosure.
The MQ1312 low frequency module works with the MQ1364,
MQ1366 and MQ1394 mid/high modules to create arrays for
use in a wide variety of permanently installed applications.
The most common array configuration is 2x MQ1364’s or
MQ1366’s separated by a single MQ1312. In such an array, a
certain amount of splay must be provided to achieve optimal
coverage.
When arraying 2x MQ1394’s separated by a single MQ1312,
the modules should be tight packed to achieve optimal cov-
erage. This provides an excellent center channel array for
large, fan-shaped venues that use an L/C/R configuration.
All MQ Series enclosures feature a comprehensive system of
3/8”-16 threaded mounting points for maximum flexibility
when suspending arrays overhead.
Applications include:
Large Houses of Worship Arena
Stadiums Theater Performing Arts Center
SPECIFICATIONS MQ1312
FEATURES
DESCRIPTION
PERFORMANCE
One Main Street, Whitinsville, MA 01588 508 234 6158 Toll Free 800 992 5013 FAX [phone] [e-mail] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. MQ1312/888140/2 pp 4/1/00 Printed in USA
APPLICATION
PHYSICAL
Configuration Dedicated low frequency loud
speaker
LF Subsystem 3x 12-in woofers
Cabinet Type (shape) Trapezoid
Enclosure Materials Baltic birch plywood
Finish Black polyurethane
Connectors 6-terminal barrier strip & 2x
Neutrik NL4 Speakon
Suspension Hardware (16) 3/8"-16 threaded mounting
suspension points (4 each top,
bottom and sides)
Grille Powder coated perforated steel
Dimensions inches millimeters
Height 40 1016
Width (front) 24 610
Width (rear) 12.75 324
Depth 21 533
Trapezoid Angle 30°
Weights pounds kilograms
Net Weight 125 56.9
Shipping Weight 131 56.6

SPECIFICATIONS MQ1312
DIMENSIONAL DRAWING A & E SPECIFICATIONS
One Main Street, Whitinsville, MA 01588 508 234 6158 Toll Free 800 992 5013 FAX [phone] [e-mail] www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. MQ1312/888140/2 pp 4/1/00 Printed in USA
The low frequency loudspeaker systems shall incorporate 3x
12-in LF transducers. The LF drivers shall be mounted in sep-
arate vented subenclosures tuned for optimum low frequency
response.
System frequency response shall vary no more than ±3 dB from
50 Hz to 1600 Hz measured on axis. The loudspeaker shall pro-
duce a Sound Pressure Level (SPL) of 100 dB SPL on axis at 1
meter with a power input of 1 Watt, and shall be capable of
producing a peak output of 137.8 SPL on axis at 1 meter. The
loudspeaker shall handle 1500 Watts of amplifier power (AES
Standard) and shall have a nominal impedance of 3x 8 Ohms.
The loudspeaker enclosure shall be trapezoidal in shape. It
shall be constructed of 1/2-in thickness void-free cross-grain-
laminated Baltic birch plywood and shall employ extensive
internal bracing. It shall be finished in black polyurethane.
Input connectors shall be a 6-terminal barrier strip and 2x
Neutrik NL4 Speakon with connections as follows (LF1 is top-
most driver, LF3 is lowest):
NL4 (left) NL4 (right)
Pins 1 +/–LF1 +/–LF3 +/–
Pins 2 +/–LF2 +/–LF4 N/C
A total of sixteen 3/8"-16 threaded mounting/suspension
points (4 each top, bottom, sides) shall be provided. The front
of the loudspeaker shall be covered with a powder coated per-
forated steel grille.
The low frequency loudspeaker shall be the EAW model
MQ1312.
Manufacturing tolerances are +/- 0.13 and +/- 1°
FRONT
SIDES BACK
MOUNTING POINT, 3/8-16 THREADED HOLE.
510837 (0)
exp 8/2/99 dpm
MQ1312
CENTER OF BALANCE
TOP
30°
L
C
17.15
10.34
5.68
(12.75) 12.70
21.00
7.50
13.15
36.10
1.95
6.37
40.00
24.00
GRILL PARTIALLY
SHOWN
7.38
10.69
INPUT
L
C
20.00
5.63