Garmin Fusion XS Série Instructions D'installation page 5

Compass-Safe Distances
All speakers contain magnets which may cause interference
with instruments on your boat. The size of the magnet used in
the speaker affects how much interference the speaker may
cause.
Interference can cause deviations and variations in the readings
of sensitive navigational equipment, such as magnetic
compasses. These deviations can cause inaccuracies or offsets
in the readings, but will not harm the equipment. To alleviate the
deviations, adjust the compass for the deviation following the
manufacturer's instructions or move the speaker away from the
navigational equipment. After moving a source of interference,
you may need to recalibrate the compass.
If you are navigating solely by a magnetic compass, use
extreme caution to place the speaker far enough away from the
compass to avoid causing deviations in the readings.
To avoid deviations to navigational equipment, position the
speakers so they are separated from the navigational equipment
by at least the distance listed in the table below.
Direction 4" Speakers
from
Speaker
185 cm (6 ft. 1 in.) 250 cm (8 ft. 2 in.) 275 cm (9 ft.)
185 cm (6 ft. 1 in.) 245 cm (8 ft.)
255 cm (8 ft. 5 in.) 310 cm
185 cm (6 ft. 1 in.) 255 cm (8 ft. 4 in.) 275 cm (9 ft.)
185 cm (6 ft. 1 in.) 230 cm (7 ft. 6 in.) 275 cm (9 ft.)
230 cm (7 ft. 7 in.) 280 cm (9 ft. 2 in.) 385 cm (12 ft.
Thiele Small Parameters
You can use the Thiele Small (T/S) parameters when designing
custom enclosures for your speakers.
NOTE: Thiele/Small parameters may vary between samples,
based on the environment and how much the speaker has been
used. These values are intended as a guide to help with
enclosure design.
T/S Parameter 4 in.
Speakers
Electrical Q factor (Q ) 1.80
es
Mechanical Q factor 4.40
(Q )
ms
Total Q factor (Q ) 1.28
ts
Resonance frequency 128
(F )
s
Equivalent air load 1.6
(V )
as
Installation Instructions
6.5" Speakers 7.7" Speakers
275 cm (9 ft.)
400 cm (33 ft.
(10 ft. 2 in.) 4 in.)
7 in.)
6.5 in. 7.7 in.
Speakers Speakers
1.05 0.7
4.80 3.6
0.86 0.59
82 72
7.6 10.4
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