User Manual
English 3
Installation board, etc.
(thickness : 15 mm or more)
Self-tapping screw
(ø5 × 18 mm)
Cooling fan
Installation
Accessories
Part name External View Number of Items
Self-tapping screws
(ø5 × 18 mm)
4
Hexagon socket head cap screw
(M4 × 8 mm)
4
Cover
1
Terminal cover (Power terminal)
1
Hexagon Wrench
1
Installation procedure
Since there are large variety of settings and connections possible according to
applications, read the instruction manual well to select the proper setting and
connection.
1. Remove the ignition key and disconnect the negative - terminal of the
battery to prevent short circuits.
2. Set the unit according to the intended usage.
3. Connect the input and output wires of the units.
4. Connect the speaker wires.
5. Connect the power wire, power control wire and grounding wire following this
order.
6. Install the installation fittings in the unit.
7. Attach the unit.
8. Install the terminal cover.
9. Connect the negative - terminal of the battery.
2CAUTION
• Do not install in the below locations;
(Unstable location, In a location that interferes wi
th driving, In a location
that gets wet, In a dusty location, In a place that
gets hot, In a place that
gets direct sunlight, In a location that gets hit b
y hot air)
• Do not install the unit under the carpet. Otherwi
se heat build-up occurs
and the unit may be damaged.
• Install this unit in a location which allows heat
to easily dissipate.
Once installed, do not place any object on top of t
he unit.
• The surface temperature of the amplifier will bec
ome hot during use. Install
the amplifier in a place where people, resins, and
other substances that are
sensitive to heat will not come into contact with i
t.
• This unit has cooling fans to decrease the intern
al temperature. Do not
mount the unit in a place where the cooling fan and
ducts of the unit are
blocked. Blocking these openings will inhibit the c
ooling of the internal
temperature and result in malfunction.
• When making a hole under a seat, inside the trunk
, or somewhere else in
the vehicle, check that there is nothing hazardous
on the opposite side
such as a gasoline tank, brake pipe, or wiring harn
ess, and be careful not to
cause scratches or other damage.
• Do not install near the dashboard, rear tray, or
air bag safety parts.
• The installation to the vehicle should securely f
asten the unit to a place in
which it will not obstruct driving. If the unit com
es off due to a shock and
hits a person or safety part, it may cause injury or
an accident.
• After installing the unit, check to make sure tha
t electrical equipment
such as the brake lamps, turn signal lamps and wind
shield wipers operate
normally.
Hexagon socket
head cap screw
(M4 × 8 mm)
Hexagon Wrench
Cover
Duct
Cooling fan
1.KAC-X621M1US.indd 04.1.9,2:12PM3