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4 English
Installation
7 Accessories
Part name
External
View
Number
of Items
Self-tapping screws
(ø5 × 18 mm (3/16" × 11/16"))
4
Hexagon Wrench (Large)
1
Hexagon Wrench (Small)
1
Terminal cover (Power
terminal)
1
7 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. Connect the negative · terminal of the battery.
235 mm (9-1/4”)
217 mm (8-9/16”)
ø 6
(
1/4”
)
192 mm (7-9/16”)
162 mm (6-3/8”)
CAUTION
• Do not install in the below locations;
(Unstable location, In a location that interferes
with 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 by
hot air)
• D
o not install the unit under the carpet.
Otherwise heat build-up occurs and the unit may
be damaged.
• I
nstall this unit in a location which allows heat to
easily dissipate.
Once installed, do not place any object on top of
the unit.
• T
he surface temperature of the amplifier will
become 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 it.
• T
his unit has cooling fan to decrease the internal
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
cooling of the internal temperature and result in
malfunction.
• W
hen 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
harness, and be careful not to cause scratches or
other damage.
• D
o not install near the dashboard, rear tray, or air
bag safety parts.
• The installation to the vehicle should securely
fasten the unit to a place in which it will not
obstruct driving. If the unit comes off due to a
shock and hits a person or safety part, it may
cause injury or an accident.
• A
fter installing the unit, check to make sure that
electrical equipment such as the brake lamps,
turn signal lamps and windshield wipers operate
normally.
Installation board, etc.
(thickness : 15 mm (9/16") or more)
Self-tapping screw
(ø5 × 18 mm (3/16" × 11/16"))
XR-4S_KE_1English.indd 4 08.12.18 5:35:49 PM