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 info@eaw.com 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°
