SPECIFICATIONS MQTD412
DIMENSIONAL DRAWING
A & E SPECIFICATIONS
One Main Street, Whitinsville, MA 01588
508 234 6158
Toll Free 800 992 5013
FAX 508 234 8251
www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
MQTD412/888173 Rev(1)/2 pp 7/25/00
Printed in USA
The low frequency loudspeaker systems shall incorporate 2x
12-in plus 2x 8-in LF transducers. Each driver pair shall be
spaced so as to create a tuned dipolar array. The driver pairs
shall require an active crossover at 250 Hz, 24 dB/octave. The
system shall provide 10-12 dB attenuation 90° off axis (v)
from 160 Hz to 500 Hz.
System frequency response shall vary no more than ±3 dB from
58 Hz to 500 Hz measured on axis. The 12-in driver pair shall
produce a Sound Pressure Level (SPL) of 101 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 SPL on axis at 1 meter. The
12-in driver pair shall handle 1000 Watts of amplifier power
(AES Standard) and shall have a nominal impedance of 2x 8
Ohms.
The 8-in driver pair shall produce a Sound Pressure Level (SPL)
of 101 dB SPL on axis at 1 meter with a power input of 1 Watt,
and shall be capable of producing a peak output of 133 SPL
on axis at 1 meter. The 8-in driver pair shall handle 400 Watts
of amplifier power (AES Standard) and shall have a nominal
impedance of 2x 12 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 wear-resistant textured
black paint. Input connectors shall be dual four-terminal bar-
rier strips. A total of sixteen 3/8"-16 Threaded Mounting
Points (4 each top, bottom, and sides) shall be provided. The
front of the loudspeaker shall be covered with a powder coat-
ed perforated steel grille.
The low frequency loudspeaker shall be the EAW model
MQTD412.
Manufacturing tolerances are +/- 0.13 and +/- 1°
TOP/BOTTOM
FRONT
SIDES
BACK
509001 (A)
exp 3/29/00 dpm
MQTD412
DIMENSIONS APPLY
TO TOP & BOTTOM
10.34
C
L
(12.75)
5.68
9.31
21.00
30
°
17.15
ACCESS PANEL
L
C
10.69
5.62
7.38
INPUT
6.37
1.95
36.10
13.15
24.00
GRILLE PARTIALLY SHOWN
40.00
INDICATES MOUNTING POINT,
3/8-16 THREADED HOLE (PI ANGLE).
INDICATES CENTER OF BALANCE.
