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Xtant2.2/Xtant4.4 Amplifier Owner’s Manual
TROUBLESHOOTING
SYMPTOM: No power
SOLUTION: Check connections to the amplifier’s Ground, B+ & Remote terminals. Check con-
nection at “+” terminal of the battery. Check the remote turn-on terminal. Ensure it receives
power when the source is turned on (or when the switch is turned on). Refer to the Installation
Section. Check the power line fuse: if fuse is blown, replace it; if fuse continues to blow, check
the power wire and also the amplifier for a short. If the short is in the power wire, fix it; if the
short is in the amplifier itself, see your Xtant dealer.
Check the voltage at the amplifier, and the remote ON/OFF lead. The voltage should measure
between 11 V - 15 V. If the measurement is beyond this range, have the source unit checked out
by an authorized dealer.
SYMPTOM: Power without sound with red power indicator on
SOLUTION: Turn the amplifier off, and Check all input & output signal cables and connections.
Check the speakers for short with a VOM (volt meter) or by connecting them to another audio
system. After making sure everything is normal, turn the amplifier on again.
SYMPTOM: Power without sound with orange protection indicator on
SOLUTION: The continuous orange light of the protection indicator signals a high internal
operating temperature, which results in the amplifier switching off temporarily; when the
amplifier cools down to a safe level, the amp will automatically restart.
SYMPTOM: No sound from one side
SOLUTION: Check balance control. Check speaker connections. Check signal input connection.
SYMPTOM: Very low sound from both radio & other source
SOLUTION: Check your radio’s fader control. Check the amplifier’s Input Sensitivity Level.
SYMPTOM: Frequent automatic amplifier shut down
SOLUTION: This indicates that the amplifier is operating continually at an exceedingly high
internal temperature. High operating temperature caused by inadequate ventilation: Refer to the
sub-section titled LOCATION for better amplifier location.
High operating temperature caused by an excessively low impedance load, say below 2 ohms
stereo or 4 ohms bridged: Check for bad speakers and/or electronic crossover, proper passive
crossover components; if difficulty persists, please consult your local authorized Xtant retailer.
High operating temperature can be caused by an incorrect input sensitivity level: refer to sub-
section titled GAIN CONTROL ADJUSTMENTS for correct setting.
SYMPTOM: “Motorboating”: The amplifier power indicator going off repeatedly when the
audio system is on
SOLUTION: Check the amplifier’s connection to the battery.
Check battery voltage. If low, recharge or replace battery. Check all ground connections.