Owner's Manual

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.
! This product is evaluated in moderate and tro-
pical climate condition under the Audio, video
and similar electronic apparatus - Safety re-
quirements, IEC 60065.
! The graphical symbol
placed on the
product means direct current.
! Connect either of three subwoofers to the am-
plifier; 1: a subwoofer with a 300 W (GM-D8701
and GM-DX871) / 500 W (GM-D9701 and GM-
DX971) or larger nominal input and an impe-
dance 4 W, 2: a subwoofer with a 500 W (GM-
D8701 and GM-DX871) / 800 W (GM-D9701
and GM-DX971) or larger nominal input and
an impedance 2 W or 3: a subwoofer with a
800 W (GM-D8701 and GM-DX871) / 1 200 W
(GM-D9701 and GM-DX971) or larger nominal
input and an impedance 1 W.
If the nominal input and impedance are out of
the above ranges, the subwoofer may catch
fire, emit smoke or become damaged.
About the protection function
This product has protection function. When this
product detects something abnormal, the follow-
ing functions will operate to protect the product
and speaker output.
! The POWER/PROTECT indicator will turn red
and the amplifier will shut down in the situa-
tions outlined below.
— If the temperature inside the amplifier gets
too high.
— If a DC voltage is applied to the speaker
output terminal.
! The POWER/PROTECT indicator will turn red
and the output will be muted in the situations
outlined below.
— If the speaker output terminal and speaker
wire are short-circuited.
Important (Serial number)
The serial number is located on the bottom of
this unit. For your own security and convenience,
be sure to record this number on the enclosed
warranty card.
En
Before you start
 Do not allow this unit to come into contact with
liquids. Electrical shock could result. Also, dam
-
age to this unit, smoke, and overheating 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
unable to determine the cause, please contact
your dealer.
 Always disconnect the negative  terminal of
the battery beforehand to avoid the risk of elec
-
tric shock or short circuit during installation.
 Do not attempt to disassemble or modify
this unit. Doing so may result in fire, electric
shock or other malfunction.
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.
! This product is evaluated in moderate and tro-
pical climate condition under the Audio, video
and similar electronic apparatus - Safety re-
quirements, IEC 60065.
! The graphical symbol
placed on the
product means direct current.
! Connect either of three subwoofers to the am-
plifier; 1: a subwoofer with a 300 W (GM-D8701
and GM-DX871) / 500 W (GM-D9701 and GM-
DX971) or larger nominal input and an impe-
dance 4 W, 2: a subwoofer with a 500 W (GM-
D8701 and GM-DX871) / 800 W (GM-D9701
and GM-DX971) or larger nominal input and
an impedance 2 W or 3: a subwoofer with a
800 W (GM-D8701 and GM-DX871) / 1 200 W
(GM-D9701 and GM-DX971) or larger nominal
input and an impedance 1 W.
About the protection function
This product has protection function. When this
product detects something abnormal, the follow-
ing functions will operate to protect the product
and speaker output.
! The POWER/PROTECT indicator will turn red
and the amplifier will shut down in the situa-
tions outlined below.
— If the temperature inside the amplifier gets
too high.
— If a DC voltage is applied to the speaker
output terminal.
! The POWER/PROTECT indicator will turn red
and the output will be muted in the situations
outlined below.
— If the speaker output terminal and speaker
wire are short-circuited.
Important (Serial number)
The serial number is located on the bottom of
this unit. For your own security and convenience,
be sure to record this number on the enclosed
warranty card.
If the nominal input and impedance are out of
the above ranges, the subwoofer may catch
fire, emit smoke or become damaged.