To Prevent Damage - Pioneer RS-A9 Owner's Manual

To prevent damage

• Do not ground the speaker wire directly or con-
nect a negative (–) lead wire for several speakers.
• This unit is for vehicles with a 12-volt battery and
negative grounding. Before installing it in a recre-
ational vehicle, truck or bus, check the battery
voltage.
• If the car stereo is kept on for a long time while
the engine is at rest or idling, the battery may go
dead. Turn the car stereo off when the engine is at
rest or idling.
• If the system remote control wire of the amplifier
is connected to the power terminal through the
ignition switch (12 V DC), the amplifier will
always be on when the ignition is on— regardless
of whether the car stereo is on or off. Because of
this, the battery could go dead if the engine is at
rest or idling.
Speaker Channel
Four-channel (4Ω)
Four-channel (2Ω)
Two-channel (4Ω)
• Speakers to be connected to the amplifier should
• Install and route the separately sold battery wire
• Cords for this product and those for other prod-
Speaker Type
Low/High or
Mid/High
Low/High or
Mid/High
High
conform with the standards listed below. If they
do not conform, they may catch fire, emit smoke
or become damaged. The speaker impedance
must be 2 to 8 ohms. But in case of two-channel
and other bridge connections, the speaker
impedance must be 4 to 8 ohms.
as far away as possible from the speaker wires.
Install and route the separately sold battery wire,
ground wire, speaker wires and the amplifier as
far away as possible from the antenna, antenna
cable and tuner.
ucts may be different colors even if they have
the same function. When connecting this product
to another product, refer to the supplied manuals
of both products and connect cords that have the
same function.
Power
Nominal input: Min. 50 W
Max. input: Min. 100 W
Nominal input: Min. 75 W
Max. input: Min. 150 W
Nominal input: Min. 150 W
Max. input: Min. 300 W
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