AXTON ATB120QBA Manuel d'installation et d'utilisation - Page 3

Parcourez en ligne ou téléchargez le pdf Manuel d'installation et d'utilisation pour {nom_de_la_catégorie} AXTON ATB120QBA. AXTON ATB120QBA 13 pages. 8"/ 20 cm active subwoofer

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SAFETY INSTRUCTIONS

1. This unit is designed to be used in a vehicle with a 12V battery and negative ground.

2. Before any wiring, always remove the negative terminal of the battery to prevent short-

circuiting. This is also the last lead to be (re-)connected.

3. Do not disassemble or alter the unit in any way, because that will void your warranty. Do

not attempt to repair or to service the unit yourself, but contact an authorized AXTON

dealer instead.

4. Use only original accessories which are designed and manufactured for the unit,

otherwise you will risk damage. Install the unit according to the mounting manual and

use only the supplied mounting accessories. The forces of acceleration for accidents are

sometimes huge. Heavy objects may pose a risk for the driver and the passengers of the

car, during an accident.

5. Protect the unit from water and other liquids, which can enter the casing. A short circuit

or even fire could be the result.

6. Before you replace a defective fuse, try to find the cause for the short circuit. Please

pay attention to the cables of the power supply! If the short circuit doesn't result from a

failure of the power supply or wiring, you can replace the defective fuse with a new one

of identical value. If the short-circuit still exists, please contact an authorized AXTON

dealer.

7. Be careful not to drain the car battery while using the unit when the car engine is turned

off. Because the unit uses a considerable amount of energy and the battery will be

charged only while the engine is running, it might happen that the battery will discharge

to a point where it's not longer possible to start the engine.

8. If your car is parked in direct sunlight and there is a considerable rise in temperature

inside the car, allow the unit to cool off before operation.

9. The amplifier module employs a protection circuit to protect the transistors and the

woofer if the amplifier malfunctions. The amplifier's protection circuitry will shut-off the

amplifier in case of short-circuit, overload or DC offset at the speaker outputs or in case

of overheat. In case the cause for protection shut-off has been eliminated, the amplifier

will operate normally again (green LED ON/ Red LED OFF). Otherwise the amplifier will

continue to remain in protection mode.

10. Do not use the unit with a weak or old battery as its optimum performance depends on

a normal battery supply voltage.

11. Please pay attention to the music playback volume inside your vehicle, because you are

obliged to notice exterior sounds like a police siren or you might face penalties in case

of an accident or even loose your insurance cover.

12. Do not operate the unit in no other way than described in this manual. Failure to follow

the instructions within this manual will void your warranty.

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WIRING & INTERFERENCE

All advice on wiring, controls and adjustments is based on the assumption that

you are thouroughly acquainted with all the requirements and features of the entire

audio equipment – especially the head-unit – connected to this powered subwoofer!

All cables are sources of interference. The power cable and RCA audio cable are very

prone to interference; the remote cable far less. There is often interference caused by the

alternator (buzzing or whining), ignition (crackling) or other car electronics parts. Most of

these problems can be eliminated by correct and careful wire routing. In doing so, read the

following guidelines first:

Use only a double-shielded RCA interconnects for the wiring between RCA input of the

amplifier and line-outs of the head unit.

Lay the signal and power cables separately with enough distance from one another and

also from each other wire harness in the car. The REM cable to the automatic amp remote

output of the radio can be laid together with the signal cables. Avoid ground loops by laying

the ground wiring of all components to a center point in a star-like way.

You can find the best central point in measuring the voltage directly at the battery. Now

compare this voltage value with the chosen ground point and the (+) terminal of the

amplifier. lf the measured voltage offers less than 0.1 V difference you've found the correct

central, which should be clean and uncorroded. Otherwise you have to look for another

point. You should measure with the ignition being switched on and additionally switched

on other electronics (rear window heating and lights). If there is noise pickup from external

electrical sources, try to route the RCA interconnect with a different path to the active sub.

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