MAC Audio ICE CUBE 12 Mode D'emploi page 5

DeAR cuSTOMeR,
We congratulate you on acquiring this MAC AUDIO
Car Stereo Product.
Please read these instructions carefully
so as to ensure optimum and disturbance-
free functioning of the appliance. Technical
modifications reserved.
SubWOOFeR DIMeNSIONS / THIele-SMAll
PARAMeTeRS / TecNIcAl DATA
see page 15
cAbINeT cONSTRucTION SuGGeSTIONS
see pages 16 – 17
cAbINeT cONSTRucTION TIPS
When building a passive speaker cabinet, the
following points should be borne in mind:
1. Use 19 mm thick (or 22 mm is preferable)
chipboard or MDF to make the cabinets. For
particularly large cabinets or heavy woofers,
the baffle can be doubled (e.g. 2 x 19 mm).
2. Maximum stability is achieved by gluing the
boards together under pressure (wood glue)
and then screwing them together using wood
screws. The screws should be inserted at
approx. 10 cm intervals.
3. The specified dimensions of the bass reflex
tubes may fluctuate by a maximum of
10%.
4. After assembling the cabinet, make sure that it
is airtight; touch up with silicone if necessary.
5. Medium-thick polyester wool or foam insulation
is advisable for enclosed cabinets. Bass reflex
cabinets only require single insulation on the
internal walls of the cabinet. On no account
may the reflex opening be blocked.
POSITIONING AND
SubWOOFeRS
Ensure that the subwoofer cabinet rests on an
even surface. The cones (and, where applicable,
the bass reflex tube) should not be placed directly
against the car's interior walls.
SecuRING THe
Make sure that the subwoofer is secured in
such a way that it cannot slip or slide. Damage
resulting from sudden changes in speed (e.g.
hard braking) is not covered under the terms
of our guarantee.
cONNecTING TO THe POWeR AMPlIFIeR
The subwoofer should be connected to an external
power amplifier in every case. This can provide the
required electrical power and create corresponding
dynamic reserves. The relevant instructions also
contain the customized connection diagram for the
operation of a subwoofer.
cAbleS TO be uSeD
To transport the output from the amplifier to the
subwoofer efficiently and reliably, you should bear
in mind when selecting the speaker cable that
2 x 4 mm² gauge wiring is required for cable
lengths in excess of 3 meters. 2 x 2.5 mm² cable
is sufficient for shorter runs. Lay the cable in such
a way that short-circuiting cannot occur, i.e. the
cable may at no time be jammed between metal
parts. Make sure that terminals on the speaker are
screwed tight and check their contact at regular
intervals.
SubWOOFeR POlARITY
Because of the different spatial conditions
prevailing in different vehicles, subwoofer polarity
can best be determined by trial and error. To do
this, choose some music material you know very
well and select the setting you like most. Some
radios / control units also offer the possibility of
setting the polarity on the appliance itself (phase).
One change in polarity corresponds to a phase
shift of 180 degrees.
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