Ground Zero Competition Series User manual

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COMPETITION SERIES
AMPLIFIER
OWNER’S MANUAL
GZCA 35K-SPL
Features
•Pure competition amplifier
•1 Ohm stable low frequency amplifier
•High efficient class D technology
•Status LED monitoring
•Illuminated GZ logo as power on indication
•Adjustable input sensitivity
•Link mode option
•Thermal / short circuit / overload protection
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Recommended wiring
GZCA 35.0K-SPL
Speaker wires
Max possible
Power supply wires
According to competition rules / max possible
Remote wire
min 0.75 mm² / 20 AWG
Mounting instructions
•As a precaution, it is recommended to disconnect the vehicles battery before mounting (also note the vehicles manual!)
•The power supply wire (+12 V) has to be protected within max. 20 cm / 8” by a main fuse holder with matching fuse value
(Main fuse value has to be equal to the sum of the recommended fuses of all connected devices to the power wire)
•If necessary, replace a defective fuse with the identical value only
•Never drill a hole to the vehicles gas tank or brake lines, to wirings or any other important vehicle part!
•Never pass wires over sharp edges or vehicle parts
•Keep the wiring away from the antenna and electronic devices contributing to radio reception
•Lay the power supply wiring always separated from speaker wiring
•The amplifier contains a temperature protection circuit that turns the device off in case of overheating. After a cooling time,
it will turn on again automatically. To avoid heat build-up, sufficient air supply for cooling must be provided. Never cover the
surface of the heatsink entirely.
•The amplifier should not be mounted on a strongly vibrating part or surface (e.g. subwoofer enclosure)
•Some amplifiers offer a high-level input option, however if a pre-amplified output (RCA) is available (at the head unit),
it is strongly recommended to make use of them.
WARNING !
Powerful car audio systems are able to create extremely high SPL similar to real live concert levels. Permanent exposure to excessively high
sound levels may cause damage to or loss of the hearing.
Furthermore, operation of a motor vehicle while listening to audio equipment at high volume levels may impair your ability to concentrate
on road traffic and external sounds such as horns, warning signals or emergency vehicles. In the interest of general and own safety, it is
recommended to listen to music at appropriately low volume levels while driving.
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Controls & Features – GZCA 35K-SPL
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Controls & Features – GZCA 35K-SPL
1
INPUT socket
to connect RCA wire from the audio source / head unit
2
OUTPUT socket
to connect another amplifier /provides the original audio signal
3
LEVEL control
to adjust the input sensitivity
4
5
OUTPUT terminal
(+) positive speaker wire connection
( - ) negative speaker wire connection
6
LINK IN socket
input signal from the previous GZCA 35K-SPL in link mode
7
LINK OUT socket
output signal for the next GZCA 35K-SPL in link mode
8
9
10
POWER supply terminal
+BAT
-> to the battery connection /+12 V
REM -> to the remote output of the head unit
GND
-> to the ground connection
11
12
13
STATUS signs
POWER indication sign
PROTECTION indication sign
CLIPPING indication sign
* To avoid any kind of malfunction, it is strongly recommended to use high quality RCA wires!
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5
Input & Output wiring – GZCA 35K-SPL
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6
Signal Input wiring – GZCA 35K-SPL
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7
Link Mode – GZCA 35K-SPL
This amplifier offers an exclusive feature enabling to connect a vast amount of speakers to up to 10 amplifiers
controlled by only one (master) of them. Separate signal wiring is not necessary. To receive the maximum output power
of each amplifier in the line of linked units, it´s recommended to spread the amount of speakers evenly to all amplifiers
and to decrease the load for each amplifier to 1 Ohm by connecting the speakers in series and/or parallel.
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8
Specifications
Model
GZCA 35K-SPL
Amplifier type
Mono low frequency class D
RMS Power @ 1 Ω
measured @ 12.6 V
35000 W (0.1% THD+N)
Input sensitivity
500 mV ~6 V
Operation voltage
9 V ~18 V
Fuse
According to competition rules
Dimensions
w x h x l (mm)
225 x 68 x 836
Dimensions
w x h x l (inch)
8.85 x 2.67 x 32.91
Weight
13 kg / 28,66 lbs
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Trouble shooting guide
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.
Ground Zero GmbH
Erlenweg 25, 85658 Egmating, Germany
Tel. [phone] Fax -8310
www.ground-zero-audio.com
Symptoms
Check / Cause
Action
No audible sound
Does the sign turn to yellow? No?
Probably there is no power supply
Check the power line fuse(s)
Check remote wire connection to the head unit
Check +12 Volt power supply wire connection
Check ground wire connection
Does the sign blink 10 times? Yes?
The battery voltage is too high or too low
The operation voltage must be 9 to 16 V
Does the sign blink 10 times? Yes?
Load at the speaker terminal is below 1 Ohm
Speaker wires may be shorted (short circuit)
Check the wiring and the speakers
Probably no input signal Check the RCA wiring to the head unit
Does the sign light up red? Yes?
Amplifier turned off due to high temperature
Turn off the amplifier until it cools down
Does the sign blink permanently red? Yes?
The amplifier is seriously damaged
Device has to be sent to our service department
Device does not turn on
Does the sign turn to yellow? No?
Probably there is no power supply
Check the power line fuse(s)
Check remote wire connection to the head unit
Check +12 Volt power supply wire connection
Check ground wire connection
Does the sign blink permanently red? Yes?
The amplifier is probably damaged
Device has to be sent to the service department
Distorted audio signal
Does the sign turn red? Yes?
The output signal is distorted
Decrease the amplifier gain (Level) or
Decrease the volume level of the head unit
Amplifier is working, but… Does the sign blink frequently red? Yes?
The battery voltage is below 9.5 V
Check and load the battery
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