Specifications

WARNING: Care should be taken to avoid amplifier clipping. It is important

to understand that a low power amplifier driven into clipping is more likely

to damage a loudspeaker than a higher power amplifier used within its

ratings. This is because music signals have a high peak to average "crest"

factor. When an amplifier is severely overdriven, its output waveform is

clipped (its peaks are squared off) – reducing the crest factor. In extreme

cases, the waveform can approach that of a square wave. An amplifier is

normally capable of producing far more power under these conditions than

its normal undistorted rated power output. Correct setting of the limiters will

automatically avoid amplifier clipping and prevent damage occurring to the

loudspeakers.

Each limiter may be completely defeated, if desired, by setting a jumper

located on the main mother board (J1-J4). If another MX5 is to be driven

from any of the output channels (eg where one MX5 splits the signal

between sub-bass loudspeakers and the main system crossovers), then the

limiters should be defeated on those channels to prevent them from

operating before the limiters in the following units.

JUMPER

POSITION LIMITER

BAND 1 J1 RIGHT ON

LEFT OFF

BAND 2 J2 RIGHT ON

LEFT OFF

BAND 3 J3 RIGHT ON

LEFT OFF

BAND 4 J4 RIGHT ON

LEFT OFF

5.4 Phase Correction

Although the outputs from the MX5 are normally in phase at the crossover

points, the acoustic outputs from the associated drive units may not be.

Correct adjustment can compensate for the phase characteristics of the

drive units and associated protective filter circuitry.

Phase alignment on an MX5 ‘system’ board is accurately set for the

speaker system for which it is supplied, and is not adjustable.

Martin Audio – MX5 System Controller

ENGLISH

CONTENTS

GUIDES