Power Output: The JBL GX-A3001 Class AB mono block amplifier
delivers the following power output (RMS Power Output @ 1% THD+N, 14.4 VDC):
- 200 watts x 1 @ 4 ohms
- 300 watts x 1 @ 2 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-A3001'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 a low-pass filter that is non-defeatable.
It eliminates the amount of high frequencies that are sent to the subwoofer. You
can adjust the cutoff frequency of the low-pass filter from 32Hz to 320Hz using
the rotary control. A small screwdriver is required to adjust the frequency.
Bass Boost: The GX-A3001 has a variable 0-12dB bass boost,
centered at 45Hz. This allows you to dial in the amount of bass according to
your personal taste.
Terminals: The JBL GX-A3001 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 an
8 AWG power wire to the battery, with an in-line 50A fuse installed no more than
18" from the battery terminal. An 8 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 Inputs: The amplifier is equipped with one pair
of RCA inputs for connecting stereo RCA patch cables from the head unit to the
amp. If you 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. The terminals are wired in parallel internally. The amplifier's
minimum speaker impedance is 2 ohms. The terminals will accept a spade
connector up to 3/8" wide.
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