Ground Zero Hydrogen GZHA Mini One-K operation manual
HYDROGEN-SERIES
Mono Amplifier
Owner’s manual
GZHA MINI ONE-K
Features
• High-efficient class D amplifier technology
• Installer friendly dimensions
• 1 ohms stable / 2 ohms (in linked configuration)
• High-level input with auto-on function
• 12 dB adjustable bass boost (@45 Hz)
• Adjustable low pass filter
• Adjustable input sensitivity
• Adjustable subsonic filter
• 0° / 180° Phase shift switch
• Bass remote control
• Thermal / short circuit / overload protection
2
Gerenal mounting instructions
• 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 service partners 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
(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 vehicles gas tank or brake lines, to wirings or any other important
vehicle parts!
• Never pass wires over sharp edges or vehicle parts due 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
NEVER 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.
• 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.
3
1
SPEAKER terminal
2
POWER supply terminal
3
Status LEDs
4
LINE-IN (RCA input)
Attention
never
5
LEVEL control
6
BASS BOOST control
8
SUBSONIC filter
9
LOW-PASS (LPF) control
10
HIGH LEVEL input
Attention
never
11
LINE OUT / OUTPUT
12
REMOTE socket
13
BRIDGED socket
14
BRIDGED mode switch
(MASTER / SLAVE)
15
PHASE CONTROL switch
Speaker connection
GROUND - ground terminal
REM - re mote wire / not to be used together with high -level input
BATT+ - +12 Volt wire from battery terminal
POW - green -> ok (correct operation)
PRO - red -> error / protection
Input sockets to connect RCA wires - to avoid any malfunction, it is recommended to use
only high-quality RCA cables.
simultaneously! This may cause serious damage to the amplifier
Controller to adjust the input sensitivity
Controller to adjust the bass boost level (0 to +12 dB at 45 Hz)
To adjust the required crossover for subsonic frequencies. Those frequencies below the
selected crossover point will be filtered (10 Hz to 50 Hz).
To adjust the required crossover point. Frequencies above the selected crossover point w ill
be filtered (30 Hz to 250 Hz)
As an alternative to the RCA inp ut (4), the high-level input can be used to connect the
speaker output of the head unit directly. The amplifier turns on automatically (Auto-On) while
the REM (remote) input of the power supply terminal remains unused.
and RCA inputs must
Fullrange RCA output to connect further amplifiers
To connect the bass remote control
To connect an RCA cable for link mode operation
High quality RCA cable is recommended (max. 1.5m / 4.9 ft)
To select the operation mode of the amplifier (see also link mode diagram)
To select the phase of the connected subwoofer in relation to further speakers (0° / 180°)
: High-level and RCA inputs should
be used simultaneously! This may cause damage to the amplifier
be used
: High-level
Controls & Features
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