EAW MQTD412 2D Manuel utilisateur

Frequency Response (1 Watt @ 1m)

±3 dB 58 Hz to 500 Hz

-10 dB 48 Hz

Axial Sensitivity (dB SPL, 1 Watt @ 1m)

12-in 101

8-in 101

Impedance (Ohms) 12-in 2x 8

8-in 2x 12

Power Handling, AES Standard (Watts)

12-in 1000

8-in 400

Calculated Maximum Output (dB SPL)

12-in Peak 137.0

8-in Peak 133.0

12-in Long Term 131.0

8-in Long Term 127.0

90 Degreee Off -Axis Rejection

Vertical 10-12dB Attenuation 160-

500 Hz

A unique 2 way bass system employing Tuned Dipolar Array

Technology. Includes 2x 12" Woofers (vented) and 2x 8"

woofers (sealed) in a trapezoidal enclosure.

The MQTD412 uses patented Tuned Dipolar Array (TDA)

Technology to achieve unprecedented LF directivity in the

vertical plane without enormous horns or baffles. The com-

pact, high output LF system works with MQ Series mid/high

modules to create true 3-way arrays in large format installa-

tions. A powerful tool where LF directivity is required. Six year

warranty.

Applications include:

Stadiums Arenas

Dance Clubs Large Theaters

Large Houses of Worship

SPECIFICATIONS MQTD412

DESCRIPTION

PERFORMANCE

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

APPLICATION

PHYSICAL

LF Subsystem 2x 12-in, vented

2x 8-in, sealed

Configuration Dedicated LF tuned dipolar array

Powering Mode Bi-amplified

Cabinet Type (shape) Trapezoidal

Enclosure Materials Baltic birch plywood

Finish

Wear-resistant textured black paint

Connectors 2x 4-Terminal barrier strip

Suspension Hardware (16) 3/8”-16 threaded mounting

points (4 each top, bottom, and

sides )

Grille Powder coated perforated steel

Dimensions inches millimeters

Height 40.00 1016

Width (front) 24.0 610

Width (rear) 12.75 324

Depth 21.0 533

Trapezoid Angle 15°

Weights pounds kilograms

Net Weight 150 68.0

Shipping Weight 162 73.5

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°

TOP/BOTTOM

FRONT

SIDES

BACK

509001 (A)

exp 3/29/00 dpm

MQTD412

DIMENSIONS APPLY

TOTOP & BOTTOM

10.34 C

(12.75)

5.68

9.31

21.00

30°

17.15

ACCESS PANEL

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.

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