Other Characteristics - JBL GTS100X Owner's Manual

Other Characteristics

24
Turn-On Delay – When installed
as described in this manual, the
GTS100x will turn on and off with
the head unit or the vehicle's
ignition switch. When the ampli-
fier is turned on, there is a time
delay of several seconds (longer
in cold weather) before the
amplifier will produce sound.
This eliminates the chance of
annoying noises produced by the
radio or signal processors being
amplified and passed to the
speakers when the system is
first turned on.
Power Consumption – Operating
the GTS100x when the vehicle is
not running may discharge the
battery. Under normal operating
conditions, the unit will draw an
average of 5 amps from the bat-
tery. At high volumes, the ampli-
fier can draw as much as 20 amps
for brief bursts. After even a
short period of time, this current
drain can discharge the battery
to the point that it will not start
the vehicle. Power consumption
under "no signal" conditions is
less than 1 amp for the GTS100x.
Even this small power usage can
discharge a battery over several
hours' time. When the GTS100x is
turned off, there is no current
drawn from the battery despite
the direct-to-battery power
connection.
Overload Protection – The
GTS100x incorporates elaborate
protection circuitry to prevent
damage to the amplifier cir-
cuitry and ensure reliable opera-
tion. This circuitry will turn the
amplifier off in the event of over-
heating, a short circuit on the
speaker output wiring, or im-
proper power supply connections.
If the amplifier cycles on and off,
or does not work at all, a problem
in installation or an abnormal
electrical condition is indicated.
Check speaker wiring for short
circuits or impedance loads sig-
nificantly below 2 ohms (4 ohms
in bridged mode). Check the
power supply voltage at the input
of the amplifier to be sure that it
is normal, between 11 and 16
volts. Check that the power wires
are not reversed.
If the GTS100x is operated at
very high power levels in a high
ambient temperature situation,
the unit may not be able to radi-
ate all the heat generated by
such operation. If the tempera-
ture of the amplifier reaches a
level that could cause damage,
the thermal overload protection
circuit will turn the amplifier off.
It will turn the amp back on