Mach CN12, Руководство пользователя, Страница: 14 / 35

R
otatable horn
The CM12, CM15 and CM18 feature a rotatable horn that allows the speaker to be flown vertically or horizontally
and still maintain the required dispersion. The default positioning of the horn is for horizontal installation. If vertical
installation is required remove the grille and unscrew the horn base-plate (On the CM12 unscrew the actual horn).
The horn can now be rotated 90 degrees to achieve the required dispersion.
H
orn protection
The horn features a thermal protection circuit that increases the impedance when the current exceeds a safe level.
The increased impedance reduces current to the horn, thus protecting it against damage. The audible result is lower
output from the horn. When this happens,
do not increase the high frequency level on the EQ or tone control, as this may
cause damage to the protection circuit and possibly also the diaphragm.
When the current returns to a safe level, the protection circuit restores full signal current to the horn, and the audio
output returns to normal.
The thermal protection is very efficient as it combines good protection with excellent sound quality. The components
in the protection circuit are all linear and thus have no influence on the sound when not engaged.
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