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(4) OUTPUT IS DISTORTED OR THIN SOUNDING
•The protection circuits (current clamps) are operating. Check all leads
for short-circuits. Try another set of leads and loudspeakers.
•Check the amp is not switched to bridged mode and non bridged
output is being used.
•Check leads for correct wiring.
(5) AMPLIFIER IS OVERHEATING (PROTECT LIGHT ON)
•Check that the fan is not obstructed with debris, and is operating and
rotating freely. If the amp is overheating the fans will run in high speed
mode which is audibly louder than normal mode. Switch off amp and
allow to cool. Power on and ensure protect light turns off.
(6) PROTECT LIGHT IS ON
The protect light will illuminate under certain conditions to prevent damage to
the amplifier or connected speakers.
•Check cabinet impedance is not less than 4 ohms per channel or less
then 8 ohms in bridged mode.
•If both channel outputs are connected, check cabinet is in correct
mode (see important notice on page 9) or is compatible.
•Check for short circuits in leads (try a different lead).
•Check for possible short circuit in speaker (try a different speaker).
•Make sure amp has sufficient air flow through fans and vents to avoid
the amp going into thermal protect.
•Power down, disconnect all leads except power and switch on. If
protect light extinguishes then problem was linked to one of the above
items.
•If the protection circuits have detected a DC signal or other damage the
amp will stay in protect mode.
If any of these, or other symptoms persist, please contact your dealer or
alternatively email us at support@matrixamplification.com for help, advice
and service.
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