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Power Output: The JBL GX-A602 Class AB 2-channel amplifier delivers
the following power output (RMS Power Output @ 1% THD+N, 14.4 VDC):
- 60 watts x 2 @ 4 ohms
- 85 watts x 2 @ 2 ohms
- 170 watts x 1 bridged mono into 4 ohms
Protection Circuitry: The amplifier features protection
circuitry for thermal overload, over- or under-voltage (<9V or >16V), and short circuits. The LED on the
end of the amp glows red if the amp goes into protection mode.
Input Level: The GX-A602's rotary gain control let you match the
amp's input sensitivity to the output of the source unit. The input sensitivity
range of the amplifier is continuously variable between 200mV and 12V. A small
screwdriver (not included) is required to set the gain.
Crossover: The amp features an 80Hz crossover. A 3-way switch lets you configure the crossover for high-pass or low-pass
operation, or switched to "flat" to defeat the crossover.
Bass Boost: The GX-A602 has a switchable 12dB bass boost,
centered at 45Hz. This is useful when using the amplifier in bridged mode to
power a subwoofer.
Terminals: The JBL GX-A602 uses screw
terminals for the +12V power, ground, turn-on (remote) lead, and speaker
outputs. The screws can be tightened/loosened with a Phillips-head or flat-head
screwdriver (not provided).
Power/Ground: The +12V Power and Ground terminals will
accept spade connectors up to 1/2" wide. It is recommended that you use a
10 AWG power wire to the battery, with an in-line 30A fuse installed no more
than 18" from the battery terminal. A 10 AWG ground wire (minimum) should be used, and
attached to a metal area close to the amplifier.
Remote Turn-On: The Remote screw terminal will accept a
spade connector up to 3/8" wide. Typically, an 18 AWG turn-on lead is included in an amplifier
Speaker-Level Input: The amp includes a Speaker Level Input
harness for connecting the amp to a factory radio or aftermarket head unit
without preamp outputs. You should splice left and right speaker wires from the
head unit to the harness and plug the harness into the amp.
Line-Level Input: The amplifier is equipped with a pair of
RCA inputs for connecting stereo RCA patch cables from the head unit to the amp.
If you are bridging the amplifier and have only one input, a "Y"-adapter will be
needed to connect the left and right RCA inputs.
Speaker Outputs: The amp features screw terminals for connecting
two speakers in stereo, or one speaker in bridged mode. To bridge the
amp, you should connect the Left + and the Right - terminals to the speaker. The terminals will accept a spade
connector up to 3/8" wide.