UNDERGROUND
INSTRUCTION &
INSTALLATION MANUAL
active
enclosure
MODEL: FU10A, FU12A, FU12TA
2
you for purchasing this FLI UNDERGROUND subwoofer enclosure. It will you with years of trouble free usage providing you follow a few simple
manual is for your safety and must be adhered to at all times. Please read and understand the installation and set up procedures as explained. If you are installation or set up of your FLI UNDERGROUND subwoofer enclosure please
authorised FLI UNDERGROUND dealer.
WARNING
DO NOT EXPOSE THIS PRODUCT TO DAMP OR MOISTURE - doing so may result in fire, shock or damage to the product.
BEFORE WIRING DISCONNECT THE CABLE FROM THE POSITIVE BATTERY TERMINAL
- failure to do so may result in electric shock or inju .
ENSURE GOOD AND CORRECT NNECTIONS - failure to make the correct connections may result in fire or damage to the oduct.
KEEP THE VOLUME AT A LEVEL SO YOU CAN STILL HEAR OUTSIDE NOISE - failure to do this may result in an accident. FLI GROUN equipm is capable of producing sound levels that can permanently mage your hearing. FLI UNDERGROUND recommends caution when listening at high volume. For safe and enjoyabl listening the sound should be comfortable and clear without distortion.
CAUTION
• Never connect any speaker lead to the car cha |
. This can cause severe damage to your |
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speaker / car radio / amplifier. |
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• Before drilling or cutting any holes, |
tigate the layout of your vehicle thoroughly. |
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• Use caution when working near the fuel / hydrau |
lines and electrical wiring. |
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• Observe the correct polarity when |
ng, improper phasing may caus a loss of bass |
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response. |
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• Ensure thatt no moving parts catch on the speaker or grill (e.g. window or door handles, or window lass inside the door)
INSTALLATION
• The quality of the installation will affect he syste performance and reliability.
•ontact your nearest authorised FLI dealer if you are unsure about the installation of this roduct.
•lease mount this unit away from any potential hazards.
•Minimising the length of wires will provide higher audio output from the system.
•The speaker should be securely fastened to the mounting position using the screws provided.
•Pre drill your mounting holes using a drill and position with the template provided.
•Be sure to investigate your mounting area thoroughly for electrical wires, brake or fuel lines or fuel tank to prevent causing any damage.
3
Run in procedure
FLI recommends that you follow the run in procedure for the subwoofer detailed below.
When your subwoofer is used for the first time naturally like most brand new items it is very stiff and rigid, it will take time for the moving parts of this subwoofer to loosen up before it will be ready to deliver its full potential.
For the first 30 hours it is recommended that you play the subwoofer initially at low to medium volumes, gradually increasing the volume level as time progresses. As a guide, if you listen to it for 1 hour every day it will take a month for the speaker to run in properly. You will notice a big change
in the sound of the subwoofer over this period, as the spider and surround begin to run in the sound will get deeper and punchier, also the output of it will increase as the suspension loosens up.
A new subwoofer is like a new car engine, it needs a few thousand miles before you can drive it to its full potential, driving it into the ‘red line’ from the first day will mean engine damage is certain and will not be covered by warranty and the same applies to the subwoofer. Failure to follow this simple procedure is the most common reason for a subwoofer to fail after a very short period of time.
Installation
The most common place to mount a bass enclosure is in the luggage compartment of the vehicle. Where in the luggage compartment it is mounted will have an effect on the sound produced allowing the user to tailor the sound to best suit their musical tastes. For example if the enclosure is mounted facing the rear bumper, the bass produced will be noticeably deeper than if it is fired into the rear seat.
Do not be afraid to experiment with positioning as a little time and effort can yield great improvements in sound.
4
Active enclosure Installation
Your FLI UNDERGROUND enclosure is designed with a swift installation routine in mind. Please mount the enclosure in a dry location on a solid surface. NEVER mount the enclosure upside down, this will cause the amplifier to overheat and will eventually damage the amplifier. Before fixing the enclosure in place please ensure that there is sufficient air
flow around the amplifier heatsink, at least two inches will be sufficient.
Power Cable
• At least a 10 gauge cable should be used for both the power and the ground connections to the amplifier.
• The power cable should be taken directly from the battery. Rubber grommets should be used when passing through any bulkheads to prevent the cable from becoming chaffed or cut.
• It is vital that a fuse / circuit breaker (of at least equal value to the one fitted on the amplifier) is placed in line with the power cable and is no further than eighteen inches away from the battery.
•Please ensure that the fuse is not fitted until the entire installation procedure is complete.
•The two tables below are to help you decide on what cable is correct for you. The first enables you to select the size of cable depending on the length required. The second will help you convert the cable size
from American Wire Gauge to Metric if you need to.
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Length of Run |
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Current demand |
0 4 Ft |
4 7 Ft |
7 |
10 Ft |
10 13 Ft 13 |
16 Ft |
16 19 Ft 19 |
22 Ft |
22 28 Ft |
0–20 amps |
14 |
2 |
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2 |
0 |
0 |
8 |
8 |
8 |
20–35 amps |
2 |
0 |
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8 |
8 |
6 |
6 |
6 |
4 |
35–50 amps |
0 |
8 |
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8 |
6 |
4 |
4 |
4 |
4 |
50–65 amps |
8 |
8 |
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6 |
4 |
4 |
4 |
4 |
2 |
65–85 amps |
6 |
6 |
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4 |
4 |
2 |
2 |
2 |
0 |
85–105 amps |
6 |
6 |
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4 |
2 |
2 |
2 |
2 |
0 |
105–125 amps |
4 |
4 |
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4 |
2 |
0 |
0 |
0 |
0 |
125–150 amps |
2 |
2 |
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2 |
0 |
0 |
0 |
0 |
0 |
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1 M e t r e – 3 . 2 8 F e e t |
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AWG to Metric Conversion Chart |
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AWG Number |
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cross sectional area |
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mm2 |
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Inch |
m |
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0 |
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0.325 |
8.25 |
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53.5 |
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0.289 |
7.35 |
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42.4 |
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2 |
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0.258 |
6.54 |
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33.6 |
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3 |
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0.229 |
5.83 |
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26.7 |
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4 |
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0.204 |
5.19 |
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21.1 |
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5 |
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0.182 |
4.62 |
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16.8 |
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6 |
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0.162 |
4. |
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13.3 |
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7 |
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0.144 |
3.66 |
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10.5 |
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8 |
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0.128 |
3.26 |
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8.36 |
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9 |
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0. |
14 |
2.91 |
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6.63 |
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10 |
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0.102 |
2.59 |
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5.26 |
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