GTO14001
GTO14001 CAR AUDIO SUBWOOFER AMPLIFIER OWNER’S MANUAL
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Installation Warnings and Tips
• Disconnect the negative (–) lead from your vehicle’s
battery.
Speaker Output Connectors
DBO (Dynamic Bass Optimization) Variable
Subsonic High-Pass Filter With Variable Boost (Q)
• For woofers in tuned (vented) enclosures, set
the Frequency control to a value 10Hz below the
enclosure’s resonance (tuned) frequency.
• For woofers in sealed boxes, set the control to
any value you prefer, between 30Hz and 50Hz.
• Set the Boost control according to your
preference, being careful not to apply
enough boost to damage your woofer(s).
A DBO High-Pass Filter Frequency control,
variable between 10Hz and 100Hz. See
above for appropriate settings.
B DBO Boost control provides up to
12dB of boost, slightly above the high-
pass filter’s frequency. See above for
appropriate settings.
Remote Level Control (RLC) Connector
• Connect the Remote Level Control (RLC) here,
using the supplied RJ-11 cable.
• Connect the speakers to these terminals,
observing proper polarity. Either + or –
terminal may be used. Minimum total
impedance is 2 ohms.
• At the installation sites, locate and make a note of
all fuel lines, hydraulic brake lines, vacuum lines
and electrical wiring. Use extreme caution when
cutting or drilling in and around these areas.
• Choose a safe mounting location away from moisture.
• Make sure there is sufficient air circulation at the
mounting location for the amplifier to cool itself.
• Mount the amplifier, using the supplied hardware.
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2
Fuses
• Replace only with the same type and rating.
Power Input Connectors
• +12V: Connect to the positive terminal of the
vehicle’s battery. 4 AWG wire is recommended.
Install an appropriate fuse holder and fuse (160A
minimum) within 18 inches of the battery. Make
sure the wire is not damaged or pinched during
installation. Install protective grommets when
routing wires through the firewall or other sheet
metal.
Specifications
• 1200W RMS x 1 channel @ 4 ohms and ≤1% THD + N*
• 1500W RMS x 1 channel @ 2 ohms and ≤1% THD + N*
• THD + N: 0.05% (rated power @ 4 ohms)
• Signal-to-noise ratio: 77dBA
(reference 1W into 4 ohms)*
• Signal-to-noise ratio: 108dBA
(reference rated power into 4 ohms)
• Frequency response: 20Hz – 330Hz (–3dB)
• Max power: 1500 watts
• GND: Connect to the vehicle’s chassis. Refer to
the picture below.
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Factory Bolt
Ring Connector
Ground Wire
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A
Power On LED
• Illuminated when the amplifier is on.
Protect LED
* CEA-2006A-compliant
• Illuminated under any of the following fault
conditions: battery over/under voltage, short
circuit in speaker wires, amplifier is too hot,
amplifier’s output circuit has failed (DC voltage
is present in the amplifier’s output).
Setting Input Level
Note: Remove any paint
below ring connector.
Star Washer
B
• REM: Connect to the “Remote Out” lead from
the source unit or to a source of switched
12V+ (ACC).
A Turn Input Level control counterclockwise to
6V (minimim).
B With a dynamic music track playing, turn the
head unit’s volume control to the 3/4 position.
C Turn Input Level control clockwise until the
bass output is proportionate to the output of
the high-frequency speakers, according to
your preference.
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Aux Output Connectors (RCA)
• Nonfiltered pass-through output. Connect to the
input of an additional amplifier.
Input Connectors (RCA)
• Connect to the RCA outputs from the source unit
or signal processor.
D Input level is now adjusted correctly.
Setting the Crossover
Input-Level Control
C
D
• Used to match the input level of the amplifier
A Crossover setting for subwoofers.
Note: Acceptable frequency ranges are indicated
in gray.
to the output level of the source unit.
B
• See for the adjustment procedure.
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Low-Pass Filter Frequency Control
• 12dB/octave low-pass filter,
variable from 32Hz to 320Hz.
Remote Level Control
The Remote Level Control, if installed, will allow
you to adjust the level of bass while seated in the
listening position.
C
• See
for the adjustment procedure.
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