Focal BombA 27 V1 User Manual

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Congratulations on choosing Focal automobile speakers.
To gain the best results from your speakers, please ensure you follow these recommendations,
and keek carefully this user manual so that you can consult it later. If not followed correctly any fault
observed may not be covered by the guarantee.

Precautions

For the subwoofer to perform at its best, we recommend to use it in a location where temperature
doesn’t go below 5°C.

• The location must also be dry and offer adequate ventilation.

• The supply voltage requirement is 12V

DC (13.8VDC) with the negative connection grounded.

Please make sure that the characteristics of your vehicle correspond with this requirement before
connecting the equipment.

• For safe driving, we recommend that you operate your sound equipment at a listening level that does
not conceal traffic noise.

Warning!

The performance of the Focal BombA 27 V1 allows high sound pressure levels to be generated.
We remind you that sustained listening beyond 110dB SPL can permanently and irreversibly damage
your hearing. We recommend that you adjust the level of your equipment correspondingly.

For safety reasons, it is essential that you securely fix the subwoofer enclosure in the boot (make sure
you do not drill through the petrol tank if you fix it with screws).

Mounting kit included:

- 2 x nylon straps

- 4 x metal roll bar

- 8 x fixing screws

- 1 x template

The Focal guarantee only applies if page 11 is
returned to us within 10 days of purch ase.

BombA 27 V1 User Manual

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BombA 27 V1 User Manual

Mounting

A power supply kit dedicated to the BombA cabling will shortly be available at your supply.

• Unplug the «+» from the battery

• Make sure you follow the car manufacturer instructions (airbag, alarm system, computer,
immobiliser ...).

• Always use battery lead connections.

Cable routing

The 12V supply cables should be passed down one side of the vehicle and the signal cables down the
other. These cables must be suitably protected to avoid any damage to the insulation, especially when
feeding the cable through from the engine compartment to the passenger cabin.

Power supply

(+) The 12V cable must be connected to the battery with a cable of appropriate quality and size,
8mm2 (7AWG) . Protect the installation with a 30A fuse on this cable fitted less than 40cm (16”) away
from the battery.

(-) The ground wire must be connected to the chassis of your vehicle with a perfect electrical
connection (remove some paint to reveal bare metal if necessary) and with a cable of the same specifica­tion as used for the + feed.
Connect the remote cable to the electrical aerial output or to the remote output of your radio.

Low level input (RCA)
Connect to the RCA output of the radio

High-level input
Connect to the loudspeaker outputs of the radio.
Never connect the RCA and the high-level inputs together.

Adjusting the Volume

The volume setting allows you to match the level of the BombA with the level of the front system.
Setting: - Turn the gain on the BombA down completely

- Turn the radio up to a normal listening level.

- Turn the gain  up on the BombA until you get the required balance.









Bass-boost
3 settings: -Classic

Note that these settings should be used together with the level adjustment.



- Techno

- Pop