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W W T T 3 3
Arrayable three-way compact theatre enclosure
technical specifications
TYPE
Compact three-way trapezoid,
switchable bi-amp/triamp
FREQUENCY RESPONSE (5) 55Hz-18kHz ± 3dB
-10dB @ 45Hz
DRIVERS
15" (380mm) / 3" (75mm) voice coil
6.5" (165mm) horn loaded mid-range
1" (25mm) exit HF compression driver
RATED POWER (2)
LF: 500W AES, 2000W peak
MF/(MF + HF): 150W AES, 600W peak
HF: 60W AES, 240 peak
RECOMMENDED AMPLIFIER 400-800W into 4 ohms
SENSITIVITY (6)
LF: 100dB
MF/(MF + HF): 107dB
HF: 105
MAXIMUM SPL (7)
127dB continuous, 133dB peak
NOMINAL IMPEDANCE
LF: 8 ohms
MF/(MF + HF): 16 ohms
HF: 16 ohms
DISPERSION (-6dB)
65º horizontal, 40º vertical
CROSSOVER
Bi-amp: 650Hz active, 3.3kHz passive
Tri-amp: 650Hz active, 4kHz active
FINISH
Textured black paint
PROTECTIVE GRILLE
Black perforated steel
CONNECTORS
2 x Neutrik NL8
FITTINGS
10 x M8 threaded inserts
1 x mounting pole socket
2 x MAN blanking plates
2 x rear kelp fittings
2 x front lid fittings
DIMENSIONS
(W) 435mm x (H) 708mm x (D) 425mm
(W) 17.1ins x (H) 27.9ins x (D) 16.7ins
WEIGHT
32kg (70.5lbs)
accessories
WT3LID
Lid
HTKWT3Y
Flying yoke
HTKCT05
8mm Shouldered eye bolt
GPT060
Fitted enclosure flying points
HTKLIS
Lightweight install stud
N N o o t t e e s s
(1) Measured on-axis in half space at 2 metres, then referred to 1 metre.
(2) AES Standard ANSI S4.26-1984.
(3) Measured in half space at 2 metres with 1 watt input, using band limited pink noise, then referred to 1 metre.
(4) Measured in half space at 2 metres using band limited pink noise, then referred to 1 metre.
(5) Measured on-axis in open (4π) space at 2 metres, then referred to 1 metre.
(6) Measured in open (4π) space at 2 metres with 1 watt input, using band limited pink noise, then referred to 1 metre.
(7) Measured in open (4π) space at 2 metres using band limited pink noise, then referred to 1 metre.
T T r r a a d d e e D D e e s s c c r r i i p p t t i i o o n n s s A A c c t t
Due to Martin Audio's policy of continuing improvement, we reserve the right to alter these specifications without prior notice.
Martin Audio is committed to refining state of the art sound reinforcement, combining in-depth product and field applications
research with advanced manufacturing techniques. Every Martin Audio product is built to the highest manufacturing standards
and rigorously tested to ensure that it meets the performance criteria specified in the design.
5 of 5
architectural and engineering specifications
The loudspeaker system shall be of the three-way
switchable bi-amp/tri-amp type consisting of one 15"
(380mm) direct radiating reflex loaded low frequency
transducer, one 6.5" (165mm) cone driver mounted on
a constant directivity horn flare with integral toroidal
waveguide and one 1" (25mm) exit HF compression
driver mounted on a constant directivity horn in a
trapezoidal plywood enclosure. The enclosure shall be
fitted with an integral pole mounting socket and
threaded inserts to facilitate a variety of mounting
options. Tri-amp or bi-amp operation shall be selected
by a switch at the rear of the enclosure. In tri-amp
mode the loudspeaker shall be operated with a
separate electronic controller providing a 650Hz
crossover between low and mid frequency sections and
a 4kHz crossover between mid and high frequencies. In
bi-amp mode the mid and high frequency sections shall
be integrated by an internal 3.3kHz passive crossover
network.
Performance of the loudspeaker system with its
electronic controller shall meet or exceed the following
criteria:
Frequency response measured 1 metre on axis shall be
55Hz-18kHz ±3dB.
High frequency dispersion at -6dB points shall be
65˚H x 40˚V.
Power handling shall be 500W AES, 2000W peak LF,
150W AES, 600W peak MF/(MF+HF), 60W AES, 240
peak HF.
Rated impedance shall be 8 ohms LF, 16 ohms
MF/(MF+HF), 16 ohms HF.
Maximum SPL measured at 1 metre on axis shall be
127dB continuous, 133dB peak.
Dimensions (W) 435mm x (H) 708mm x (D) 425mm
(17.1ins x 27.9ins x 16.7ins).
Weight 32kg (70.5lbs).
The loudspeaker system shall be the Martin Audio
WT3.
Century Point, Halifax Road, Cressex Business Park,
High Wycombe, Buckinghamshire HP12 3SL, England.
Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669
E-mail: info@martin-audio.com
All information is Copyright © 2006 Martin Audio Ltd.
www.martin-audio.com
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