Before You Start; In Case Of Trouble; About This Product; Before Connecting/Installing The Amplifier - Pioneer GM-D8500M Owner's Manual

Before you start

In case of trouble

Should this product fail to operate properly,
please contact your dealer or nearest author-
ized Pioneer Service Station.

About This Product

This product is a mono amplifier for subwoofer. If
both L (left) and R (right) channels are connected
to the RCA input of this product, output is mixed
because this product is a mono amplifier.
Before connecting/
installing the amplifier
WARNING
! The use of a special red battery and ground
wire RD-223, available separately, is recom-
mended. Connect the battery wire directly to
the car battery positive terminal + and the
ground wire to the car body.
! This unit is for vehicles with a 12 V battery and
negative grounding. Before installing in re-
creational vehicles, trucks or buses, check the
battery voltage.
! The black cable is ground. When installing
this unit, make sure to connect the ground
wire first. Ensure that the ground wire is prop-
erly connected to metal parts of the car's
body. The ground wire of the one of this unit
must be connected to the car separately with
different screws. If the screw for the ground
wire loosens or falls out, it could result in fire,
generation of smoke or malfunction.
! Use a fuse of the rating prescribed.
! Check the connections of the power supply
and speakers if the fuse of the separately sold
battery wire or the amplifier fuse blows. Deter-
mine and resolve the cause, then replace the
fuse with identical equivalent.
! Always install the amplifier on a flat surface.
Do not install the amplifier on a surface that
is not flat or on a surface with a protrusion.
Doing so could result in malfunction.
! When installing the amplifier, do not allow
parts such as extra screws to get caught be-
tween the amplifier and the automobile.
Doing so could cause malfunction.
! Do not allow this unit to come into contact
with liquids. Electrical shock could result.
Also, damage to this unit, smoke, and over-
heating could result from contact with liquids.
The surfaces of the amplifier and any attached
speakers may also heat up and cause minor
burns.
! In the event of any abnormality, the power
supply to the amplifier is cut off to prevent
equipment malfunction. If this occurs, switch
the system power OFF and check the power
supply and speaker connections. If you are un-
able to determine the cause, please contact
your dealer.
! Disconnect the negative terminal of the bat-
tery before installation.
CAUTION
! Always keep the volume low enough to hear
outside sounds.
! Extended use of the car stereo while the en-
gine is at rest or idling may exhaust the bat-
tery.
! Connect either of two subwoofers to the am-
plifier; 1: a subwoofer with a 350 W or larger
nominal input and an impedance 4 W, or 2: a
subwoofer with a 600 W or larger nominal
input and an impedance 2 W. If the nominal
input and impedance are out of the above
ranges, the subwoofer may catch fire, emit
smoke or become damaged.
Section
01
3
En