1 - COOLERS: The GHD 3000, has one internal ventilation cooler, and cannot be blocked. For
perfect functioning, the amplifier must be installed in a cool and aired place. It is recommended
not to embed it, so that the air circulates throughout the inside of the product extension, thereby
preventing the thermal protection from acting.
2 - SPEAKER: Output (positive and negative) to transducer’s connection (loudspeakers). Follow
the polarity described and the minimum impedance recommended.
To combine loudspeakers, the resulting impedance must be taken into consideration.
NOTE: Impedances lower than the one supported at the output can activate the short-circuit
protection.
3 - POSITIVE POWER SUPPLY TERMINAL: Use a 21mm² (4 AWG) cable directly from the
positive battery terminal with fuse (170 A), as close as possible from the battery.
4 - REMOTE TERMINAL: The remote CD/DVD Player output must be connected by a 1.5mm²²
(15 AWG) cable.
5 - NEGATIVE POWER SUPPLY TERMINAL: A 21mm² (4 AWG) cable as short as possible must
be used, connected to the negative battery pole.
It is recommended that all cables must have tinned ends to improve electrical contact.
3
4
LEDs Indicadors and Protection Systems
Functions and inputs
1 - INPUT (R and L): Inputs of signals to be amplified. Connect these signals to RCA outputs of
CD/DVD Player, using good quality shielded cables to avoid noise influence.
2 - LEVEL: It sets the amplifier input sensitivity, which allows an optimal adjustment to the output
signals levels of nearly all models of CD/DVD Players found in the market.
3 - CROSSOVER
HIGH PASS: Variable adjustment from 10Hz to 80Hz, which determines the beginning of the
amplifier operating frequency.
LOW PASS: Variable adjustment from 80Hz to FULL, which determines the end of the
amplifier operating frequency.
4 - BASS BOOST: Boost for bass levels in 80Hz, with amplitude from 0 to 10 dB.
5 - MONITOR: Connection to an accessory, which function is to monitor the amplifier and it is
where all information from the indicator LEDs, such as distortion (CLIP/TEMP) and protection
actuation (PROT), will be displayed simultaneously.
Power supply connectors and output
Resulting
impedance:
1 OHM
For the amplifier in 1 OHM
1 2
5
4
3
Red LED :steady on
Short-circuit or impedance lower than that supported at output.
Flashing yellow LED continuously: Excessive internal temperature (May be caused by
obstruction of the internal cooler, improper installation or poorly ventilated location).
Blinking yellow LED according to music: Indicates that the amplifier is operating at the
threshold of distortion. If the red led also blinks, it indicates excessive distortion.
Red LED flashes 2x:
Supply voltage less than 9V.
Red LED flashes 3x:
Power supply voltage greater than 16V.
Blue LED steady on:
Indicates that the amplifier is turned on.
1 - COOLERS: The GHD 3000, has one internal ventilation cooler, and cannot be blocked. For
perfect functioning, the amplifier must be installed in a cool and aired place. It is recommended
not to embed it, so that the air circulates throughout the inside of the product extension, thereby
preventing the thermal protection from acting.
2 - SPEAKER: Output (positive and negative) to transducer’s connection (loudspeakers). Follow
the polarity described and the minimum impedance recommended.
To combine loudspeakers, the resulting impedance must be taken into consideration.
NOTE: Impedances lower than the one supported at the output can activate the short-circuit
protection.
3 - POSITIVE POWER SUPPLY TERMINAL: Use a 21mm² (4 AWG) cable directly from the
positive battery terminal with fuse (170 A), as close as possible from the battery.
4 - REMOTE TERMINAL: The remote CD/DVD Player output must be connected by a 1.5mm²²
(15 AWG) cable.
5 - NEGATIVE POWER SUPPLY TERMINAL: A 21mm² (4 AWG) cable as short as possible must
be used, connected to the negative battery pole.
It is recommended that all cables must have tinned ends to improve electrical contact.
3
4
LEDs Indicadors and Protection Systems
2 OHMS 2 OHMS
Functions and inputs
1 - INPUT (R and L): Inputs of signals to be amplified. Connect these signals to RCA outputs of
CD/DVD Player, using good quality shielded cables to avoid noise influence.
2 - LEVEL: It sets the amplifier input sensitivity, which allows an optimal adjustment to the output
signals levels of nearly all models of CD/DVD Players found in the market.
3 - CROSSOVER
HIGH PASS: Variable adjustment from 10Hz to 80Hz, which determines the beginning of the
amplifier operating frequency.
LOW PASS: Variable adjustment from 80Hz to FULL, which determines the end of the
amplifier operating frequency.
4 - BASS BOOST: Boost for bass levels in 80Hz, with amplitude from 0 to 10 dB.
5 - MONITOR: Connection to an accessory, which function is to monitor the amplifier and it is
where all information from the indicator LEDs, such as distortion (CLIP/TEMP) and protection
actuation (PROT), will be displayed simultaneously.
Power supply connectors and output
Resulting
impedance:
1 OHM
For the amplifier in 1 OHM
4
3
21
5
Red LED :steady on
Short-circuit or impedance lower than that supported at output.
Flashing yellow LED continuously: Excessive internal temperature (May be caused by
obstruction of the internal cooler, improper installation or poorly ventilated location).
Blinking yellow LED according to music: Indicates that the amplifier is operating at the
threshold of distortion. If the red led also blinks, it indicates excessive distortion.
Red LED flashes 2x:
Supply voltage less than 9V.
Red LED flashes 3x:
Power supply voltage greater than 16V.
Blue LED steady on:
Indicates that the amplifier is turned on.
4 5
GHD 3000 - MONOBLOCK AMPLIFIER www.geniuscaraudio.com
ENGLISH
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