Martin Audio Portable Speaker WTUB User Manual

WTUB

Compact theatre under-balcony enclosure

features

Seamless coverage over 120˚

High SPL from compact enclosure

High frequency line array with proprietary

diffusion phase plug

Switchable input configuration

Dedicated hardware for under-balcony

and ceiling mounting

Multi-laminate birch ply construction

applications

Under-balcony fill in theatre sound systems

Wide dispersion infill

Speech and music reinforcement in conference venues

The Wavefront Theatre WTUB enclosure has been specifically designed for under-balcony use in theatres and

infill in venues requiring extremely wide horizontal coverage. The WTUB loudspeaker provides sound

reinforcement for speech and music with exceptionally consistent tonal balance over the whole of its coverage

angle. It also shares the same tonal characteristics as the larger members of the WT range, the WT2 and 3.

The unusual driver complement and geometry is responsible for the uniform coverage of the enclosure. A triple

soft dome, high frequency line array coupled with a proprietary diffusion phase plug gives very wide horizontal

and tight vertical dispersion. Its narrow width allows minimal separation between the two 6.5" (165mm) cone

drivers. This factor and the drivers’ 60˚ splay are responsible for the seamless horizontal coverage of the

WTUB. The two 6.5" (165mm) drivers feature 1.5" (38mm) voice coils and an innovative heat exchange system

to reduce power compression. A combination of ferrofluid and a rear mounted heatsink cools the high frequency

line array’s neodymium magnet assembly, with extreme high frequency overload being dealt with by an auto-

resetting over-current device.

Featuring fully passive operation and requiring no controller, the WTUB is extremely straightforward to deploy.

The enclosure input configuration is externally switchable between pins 1 and 2 on the fitted Neutrik NL4MP

connectors. This allows daisy-chaining of cabinets via a 4 core cable, even when they are fed with different input

signals.

The rugged, multi-laminate birch ply enclosure features M8 inserts for the dedicated mounting bracket and an

additional M8 ‘safety chain’ point. The multi-angled cabinet rear allows close proximity ceiling mounting with a

downward tilt of up to 45˚. A pole mount socket gives the additional option of tripod stand mounting.

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: [email protected]

www.martin-audio.com

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WTUB

Compact theatre under-balcony enclosure

technical specifications

architectural and engineering specifications

TYPE

Compact two-way passive,

under-balcony reflex enclosure

The loudspeaker system shall be of the two-way passive

type consisting of two 6.5" (165mm) direct radiating

reflex loaded low frequency transducers and one triple

element high frequency line array coupled with a

proprietary diffusion phase plug mounted in a multi-

angled plywood enclosure. The enclosure shall be fitted

with an integral pole mounting socket and supplied with

a flying yoke. Input connector configuration shall be

externally selected by a switch at the rear of the

enclosure. Low and high frequency sections shall be

integrated by an internal 1.2kHz passive crossover

network.

FREQUENCY RESPONSE (5) 80Hz-18kHz 3dB

DRIVERS

2 x 6.5" (165mm) bass mid drivers

3 x 1" (25mm) soft dome HF line array

200W AES, 800W peak

RATED POWER (2)

RECOMMENDED AMPLIFIER 200-400W into 4 ohms

SENSITIVITY (6)

MAXIMUM SPL (7)

NOMINAL IMPEDANCE

DISPERSION (-6dB)

CROSSOVER

ENCLOSURE

FINISH

PROTECTIVE GRILLE

CONNECTORS

93dB

115dB continuous, 121dB peak

8 ohms

120º horizontal, 40º vertical

1.2kHz passive

16 litre, multi-laminate birch ply

Textured black paint

Black perforated steel

2 x Neutrik NL4 switchable for

input +1,-1 or +2,-2

FITTINGS

2 x M8 threaded inserts for dedicated bracket

1 x M8 insert for safety point

1 x mounting pole socket

(W) 480mm x (H) 212mm x (D) 344mm

(W) 18.9ins x (H) 8.4ins x (D) 13.6ins

12kg (26.4lbs)

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

80Hz-18kHz 3dB.

DIMENSIONS

WEIGHT

High frequency dispersion at -6dB points shall be

120˚H x 40˚V.

Power handling shall be 200W AES, 800W peak.

Rated impedance shall be 8 ohms.

Maximum SPL measured at 1 metre on axis shall be

115dB continuous, 121dB peak.

Dimensions (W) 480mm x (H) 212mm x (D) 344mm

(18.9ins x 8.4ins x 13.6ins).

Weight 12kg (26.4lbs).

The loudspeaker system shall be the Martin Audio

WTUB.

N o t e 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.

Tr a d e D e s c r i p t i o n s A c 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.