Martin Audio W3 Spezifikationen PDF herunterladen (Seite 13)

7 LEVELS

Each output level may be adjusted from -ve infinity to +6dB relative to its

nominal level. The system-specific plug-in boards include mid and high

frequency band attenuation to provide level matching for approximate

system balance when all controls are set to 0dB (assuming the use of

amplifiers with identical gains). It should be noted, therefore, that front

panel calibration would not necessarily indicate absolute band gains within

the WX3A. When setting up a system for the first time, the WX3A band

levels should be adjusted for desired balance and the settings noted for

future reference.

8 LIMITERS

The WX3A system controller features fast attack limiters to prevent power

amplifiers from clipping, thus providing speaker protection whilst preserving

full system headroom. The limiters are set by adjusting the limit threshold

switches to the value that matches the input sensitivity of the amplifier. A

system operated in this way, with amplifiers having a power rating as

recommended for the particular Wavefront system and used by

experienced professional sound engineers, should be sufficiently protected

from overdriving. Amplifier gain controls should normally be set at

maximum. Triggering of the limiter is indicated by a red LED on the front

panel.

Recommended amplifier powers for Wavefront Series loudspeakers are as

follows:

W1 300-400 watts per channel into 4 ohms

W2/W3 400-600 watts per channel into 4 ohms

W3P 550-800 watts per channel into 4 ohms

WS2A 550-800 watts per channel into 4 ohms

Limiter threshold settings may be altered by removing the top panel of the

WX3A case (two screws each side) to gain access to the main circuit

board.

The limiter threshold is set by a 16-way switch on each band. This is

located on the main circuit board behind each corresponding band level

control. The switches are labelled as follows:

BAND 1 S 1

BAND 2 S 2

BAND 3 S 3

BAND 4 S 4

Martin Audio – WX3A System Controller

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Martin Audio W3 Spezifikationen Seite 13