PHONIC CORPORATIONPage 12 MAX SERIES USER’ S MANUAL
PORTECTIONS
PROTECTIONS
The unit comes with many circuitry protection fea-
tures for preventing it and speakers it’s connected
to from harm.
SHORT CIRCUIT: When speakers short circuit,
this feature protects the amplifier by cutting off the
output current to the speakers.
THERMAL: Heat is created during high level out-
put – especially when during bridge operation. The
unit comes with variable speed fan that auto-ad-
justs speed depending on the temperature of the
machine during operation. However, for some rea-
son the unit could not effectively vent out exces-
sive heat, this feature would protect the unit from
over-heating by shutting its power off.
OUTPUT DC OFFSET: When direct current enters
to the connection between the power amplifier and
speakers, it hurts the speakers by causing drivers
and cones to work under stress. This feature pre-
vents this from happening by cutting off the output
current to the speakers when such situation hap-
pens.
POWER ON / OFF MUTING: There is a two to
three second delay before the unit sends out any
signal. During this 2-3 seconds, the system will
be on mute, no signal exist this unit.
SUBSONIC: Frequencies below 10Hz contain high
level of energy that can be harmful and stressful for
many speakers. Since normal human listening
range from 20Hz to 20KHz, this unit comes with a
feature that helps filter out any frequency that is
below 10Hz to prevent speakers from harm.
RF PROTECTION: Radio Frequency is everywhere.
This feature prevents radio frequency interference
by filtering out frequency signal that’s above
200KHz. This help prevent radio program signals
from entering this unit.
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