Martin Audio WAVEFRONT COMPACT - APPLICATIONS GUIDE Bedienungsanleitung PDF herunterladen (Seite 8)

7 CABLE LENGTHS

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 Maximum Cable Run

4 ohms 8 ohms 16 ohms

1.0mm

11m 22m 44m

1.5mm

17m 34m 68m

2.0mm

22m 44m 88m

2.5mm

29m 58m 116m

4.0mm

44m 88m 176m

6.0mm

66m 132m 264m

8 SYSTEM CONFIGURATIONS

Wavefront Touring enclosures can be used with dedicated analogue

controllers such as the Martin Audio MX5 which performs system specific

equalisation, crossover and limiter functions. More complex set-ups will

benefit from the use of a digital controller such as the Martin Audio DX1.

Wavefront Touring systems can also be used with BSS and XTA digital

controllers.

Whichever controller is used, it is important that it has fast attack limiter

to prevent amplifiers from clipping. This requires that the controller’s limiter

thresholds be set to match the sensitivity of the amplifier. A system

operated in this way with amplifiers having a power rating as

recommended and used by experienced professional sound engineers

should be sufficiently protected from overdriving. It is suggested that you

refer to the controller’s user guide for further information on how to set

limiter thresholds.

Most medium scale and arena applications will be based on the W8C

used with either the W8CS or WSX sub-bass whilst outdoor festivals will

include a number of W8CM and W8CT Longthrow systems. More detailed

information on recommended setups, arraying and system control will be

found in the Applications Guide (available early 2001).

Martin Audio – WAVEFRONT TOURING SERIES

ENGLISH

CONTENTS

GUIDES

APPLICATIONS GUIDE

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