Ground Zero GZ BASS KIT 12.300X User manual

GZ BASS KIT 12.300X
Owner´s manual
Features
•Mono class A/B amplifier GZBA 1.300X
•4 ohms stable amplifier
•Power and protection indicator
•Bass Boost control
•Variable low pass filter
•Auto-on function for high-level input
•Adjustable input sensitivity
•Separately available remote control
•30 cm / 12“ subwoofer enclosure with Aero port
•Klippel® optimized
General installation note
•As a precaution, it is recommended to disconnect the vehicles battery before mounting the amplifier. (Note: For new
vehicles, disconnecting the battery might cause various errors in your vehicle´s electric system that can be cleared only by
authorized personel of your vehicle´s manufacturer! Please ask your service partner first before disconnecting the battery!)
•The power supply wire (+12 V) has to be protected within max. 20 cm / 8” by a main fuse holder with a fuse value matching
the recommendation for your amplifier or internal fuse value
(Note: If there is more than one amplifier connected using this power wire, the main fuse value must be equal to the sum of
the recommended fuses of all connected devices. However, make sure the diameter of your power wire will be sufficient for
the required current!)
•If necessary, replace a defective fuse by a fuse with identical quality and value
•Never drill a hole to the vehicle´s gas tank or brake lines, to wirings or any other important vehicle parts!
•Never pass wires over sharp edges or vehicle parts to avoid any kind of damage
•Keep the wiring away from the antenna and electronic devices contributing to radio reception
•Lay the power supply wiring always separated from speaker wiring to avoid disturbance
•The amplifier contains a temperature protection circuit that turns the device off in case of overheating. After a certain cooling
time, it will turn on automatically. To avoid heat build-up, sufficient air supply for cooling must be provided. Never cover the
surface of the amplifier´s heatsink entirely
•The amplifier should not be mounted onto a vibrating part or surface such as a subwoofer enclosure. This might lead to
malfunction due to loosened electrical parts inside the amplifier.
•This amplifier has got a high-level input option, however if a pre-amplified output (RCA) is available (from head unit), it is
strongly recommended to make use of it.

GZ BASS KIT 12.300X
Connections and controls
1
Speaker terminal
To connect the speaker wire (of the subwoofer)
2
Power terminal
GND Ground connection
REM Remote connection (not necessary when high-level input is used)
BATT +12 Volt connection
3
Fuse
Replace a defective fuse by a fuse with identical quality and value (30A)
4
High-level input
To connect your head unit (if not equipped with a low-level RCA output)
Connect this input to the speaker outputs of your head unit. The amplifier automatically
turns on (Auto On). The remote needs not to be connected
IMPORTANT!
Do not use the high-level input and the RCA input simultaneously. This may lead to
serious damage of the amplifier. Use either the RCA or the high-level input, only
5
RCA input
To connect the low-level input signal (RCA)
IMPORTANT!
Do not use the high-level input and the RCA input simultaneously. This may lead to
serious damage of the amplifier. Use either the RCA or the high-level input, only
6
RCA output
To connect an additional amplifier (RCA)
7
Gain (level) control
To adjust the input sensitivity
8
Mode switch
To select the crossover mode
LPF Low frequencies (below selected crossover point) will be reproduced
FULL Full range reproduction
9
Low pass control
To set the crossover frequency. Set the filter switch to the LOW position. Adjust the
variable LPF frequency to the desired frequency using the controller
10
Bass Boost control
To adjust the low bass increase (Bass Boost) at 45 Hz (0 – 6 dB)
11
Status indication
GREEN Amplifier is in operation mode
RED Amplifier is in protection mode
12
Remote control
connector
To connect the separately available remote control GZTA Bassremote

GZ BASS KIT 12.300X
Amplifier specifications
Model
GZBA 1.300X
Type
Mono class A/B amplifier
Power output @ 4 ohms
(14.6V) / RMS
1 x 200 W
Power output @ 4 ohms
(14.6V) / max
1 x 300 W
Low pass filter
40 – 250 Hz
Bass Boost
0 – 6 dB (@ 40 Hz)
Frequency response
15 Hz – 20 kHz
Input sensitivity
200 mV – 6.5 V
Auto-On @ High-level input

Fuse
1 x 30A
Dimensions / heatsink only
W x H x L (mm/inch)
180 x 53 x 236 / 7.09” x 2.09” x 9.29”
Subwoofer specifications
Model
GZ BASS KIT 12.300X subwoofer
Type
30 cm / 12” vented subwoofer (with Aero port)
Power handling
300 W
Impedance
4 ohms
Volume (net)
40 Liter / 1.41 cu.ft.
Dimensions
W x H x D at top/bottom (mm/inch)
520 x 360 x 250 / 350 mm
20.47“ x 14.17“ x 9.84 / 13.78“
Trouble shooting guide
Symptoms
Inspect
Check
No sound
Is the POWER LED illuminated?
Check the fuses of the amplifier
Make sure that remote lead is connected
Check the +12 Volt connection
Check the ground connection
Is the diagnostic LED illuminated?
Check for speaker short or overheating
Amp not switching on
Power and ground wiring
Check the power and ground wiring
Remote wire
Check the connection of the head unit
Amplifier switches off
at medium or high levels
Check speaker load impedance
Make sure that the recommended speaker
load impedance is observed
Protection LED is on
Temperature shut down
Turn the head unit´s level down
Switch the head unit off
Check the installation
Speaker wires short
Separate and insulate the speaker wires

GZ BASS KIT 12.300X
Terms of warranty
The limited warranty for this product is covered by Ground Zero´s local distribution partners and their
terms and conditions. For further information contact your local retailer or distributor.
Listening to music can be emotional, impressive, relaxing or enjoyable. At that, it doesn´t
really matter what kind of music is the personal favorite, whether it´s Instrumental, Jazz,
Electro, Latin, Classic, Rock or any other music direction. However, audio reproduction
quality at each desired volume is elementary. Some music styles require higher levels
while others prefer the soft tones.
GROUND ZERO considers all the different wishes of customers during the development
of new products. Along with this, the target is to create the most realistic sound, to transfer
the soul of the music and the intention of the performer. Summarized to one phrase:
RESPECT THE MUSIC!
Ground Zero GmbH
Erlenweg 25, 85658 Egmating, Germany
Tel. [phone] Fax -8310
www.ground-zero-audio.com