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CONTENTS
6
The connector panel has two Neutrik NL4MP Speakon connectors wired in
parallel with each other. The second connector allows use of a short link
lead to power another parallel loudspeaker. The input pin configuration is
selected by a rear mounted switch which additionally allows daisy-chaining
of cabinets via a four core cable, even when fed with different input signals.
The connectors are wired as follows:
NL4 Pin
1-
1+
2-
2+
7
When connecting loudspeaker systems to an amplifier, it is recommended
that the return resistance of the cable used is less than one tenth of the
nominal impedance of the system or systems in parallel. The table below
gives an indication of the maximum permissible cable runs for various
conductor cross-sectional areas.
Conductor CSA
1.0mm
2
1.5mm
2
2.0mm
2
2.5mm
2
4.0mm
2
6.0mm
2
8
The WT UB may be used to cover the full-frequency range – either
distributed singly or arrayed in multiples. Optimum splay angle is 60˚
between cabinet sides. In this manner three closely arrayed WT UB
speakers can cover 360˚ in the horizontal plane.
The WT UB loudspeaker exhibits an essentially flat on-axis frequency
response. Equalisation to compensate for a particular acoustic environment
may be performed where required.
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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CONNECTIONS
WT UB
Input 1 -ve
Input 1 +ve
Input 2 -ve
Input 2 +ve
CABLE LENGTHS
4 ohms
11m
17m
22m
29m
44m
66m
SYSTEM CONFIGURATIONS
Martin Audio – WT UB
Switch position
UP
UP
DOWN
DOWN
Maximum Cable Run
8 ohms
22m
34m
44m
58m
88m
132m
5
GUIDES
16 ohms
44m
68m
88m
116m
176m
264m
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