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