Issues
Causes
Solutions
Can’t switch on the Bus 20
or Bus 25 (Bomba under
seat).
No +12V on the remote
No +12V on the supply
Ground not properly
connected
Fuse broken
Supply the terminal in +12V
Connect the supply in +12V
Check connections to
ground
Change fuse
The Bus 20 or Bus 25
Bomba under seat is on but
no signal.
No signal
No remote
Check signal cable
Check power on the remote
Distorted output.
Source level too high
Gain of the amplifier too
high
Turn down the source level
Turn down the gain of the
amplifier
Blown fuses.
Output levels too high
Turn the level or gain down
Technical specifications
Bus 20 (Bomba under seat)
Bus 25 (Bomba under seat)
Woofer
20cm (8”)
25cm (10”)
Maximum power
120W
120W
Nominal power
60W
60W
Impedance
2Ω+2Ω
2Ω+2Ω
Cut-off frequency
50 - 100Hz
50 - 100Hz
Maximum current
12A
12A
Supply tension
14.4V (10V – 16V)
14.4V (10V - 16V)
Dimensions
348x242x75mm
13.70x9.53x2.95”
371x277x80mm
14.61x10.91x3.15”
Weight
5.1kg/11.24lb
5.8 kg/12.79lb
Guarantee
All Focal loudspeakers are covered by guarantee drawn up by the official Focal distributor in
your country. Your distributor can provide all details concerning the conditions of guarantee.
Guarantee cover extends at least to that granted by the legal guarantee in force in the country
where the original purchase invoice was issued.
6
BUS 20 & BUS 25
U s e r
M a n u a l
Repair guide
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20/12/07 14:59:48
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