EAW MQTD812 Bedienungsanleitung

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 104

8-in 104

Impedance (Ohms) 12-in 2x 4

8-in 2x 6

Power Handling, AES Standard (Watts)

12-in 2000

8-in 800

Calculated Maximum Output (dB SPL)

12-in Peak 143.0

8-in Peak 139.0

12-in Long Term 137.0

8-in Long Term 133.0

90º Off -Axis Rejection Vertical 10-12dB Attenuation 160-

500 Hz

A unique 2 way bass system employing Tuned Dipolar Array

Technology. Includes 4x 12" Woofers (vented) and 4x 8"

woofers (sealed) in a trapezoidal enclosure.

The MQTD812 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 for-

mat installations. A powerful tool where LF directivity is

required. Six year warranty.

Applications include:

Stadiums Arenas Dance Clubs

Theaters Performing Arts Centers

Large Houses of Worship

SPECIFICATIONS MQTD812

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. MQTD812/888175 Rev(1)/2 pp 7/25/00 Printed in USA

APPLICATION

PHYSICAL LF Subsystem 4x 12-in, vented

4x 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) 33.36 847

Width (rear) 24.09 612

Depth 17.29 439

Trapezoid Angle 15°

Weights pounds kilograms

Net Weight 230 1 04.3

Shipping Weight 250 113.4

SPECIFICATIONS MQTD812

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. MQTD812/888175 Rev(1)/2 pp 7/25/00 Printed in USA

The dual bi-amplified dedicated low frequency loudspeaker

systems shall incorporate a four 12-in LF transducers and four

8-in LF transducers. The 12-in drivers shall be powered as two

pairs, as shall the 8-in drivers. The system shall require an

active external crossover at 250 Hz, 24dB Octave between the

8-in and 12-in drivers.

The 12-in drivers shall be mounted in a vented enclosure

tuned for optimum low frequency response. The 8-in drivers

shall be mounted in a sealed subenclosure. The four driver

pairs shall be spaced to create a dipolar array such that the

total system shall provide 10 - 12 dB attenuation from 160 to

500 Hz at 90°off-axis (vertical).

System frequency response shall vary no more than ±3 dB

from 58 to 500 Hz measured on axis. The 12-in drivers shall

produce a Sound Pressure Level (SPL) of 104 dB SPL on axis

at 1 meter with a power input of 1 Watt, and shall be capa-

ble of producing a peak output of 143.0 dB SPL on axis at 1

meter. The 12-in drivers shall handle 2000 Watts of amplifier

power (AES Standard) and shall have nominal impedances of

2x 4 Ohms.

The 8-in drivers shall produce a Sound Pressure Level (SPL) of

104 dB SPL on axis at 1 meter with a power input of 1 Watt,

and shall be capable of producing a peak output of 139 dB SPL

on axis at 1 meter. The 8-in drivers shall handle 800 Watts of

amplifier power (AES Standard) and shall have nominal

impedances of 2x 6 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 tex-

tured black paint. Input connector shall be 2x 4-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 dual bi-amplified dedicated low frequency loudspeaker

systems shall be the EAW model MQTD812.

Manufacturing tolerances are +/- 0.13 and +/- 1°

509007 (A)

exp 3/29/00 dpm

MQTD812 INDICATES MOUNTING POINT,

16X 3/8-16 THREADED HOLE (PI ANGLE).

3.25

17.29

27.80

(24.09)

DIMENSIONS APPLY TO

TOP & BOTTOM

TOP/BOTTOM

21.64

30°

7.37

BACK

INPUT

10.86

5.62

3.26

40.00

FRONT

33.36

GRILLE PARTIALLY SHOWN

1.95

SIDES

DIMENSIONS APPLY TO

BOTH SIDES

11.913.86

1.95

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