SoundMax SM-SA6021, Instruction Manual

Page: 6 / 27

SOUNDMAX SM-SA6021
6
Connections
POWER SUPPLY AND REMOTE TURN-ON OF THE AMPLIFIER
NOTE: Do not connect the plus terminals to the car battery before other connections, or it may occur short
circuit.
The gauges of power cables should be enough for the power amplifier demands at least 8mm
2
.
The + 12V DC and ground cables should be at least 8mm
2
.
Firstly connect the GROUND terminal to the battery negative pole. It is very important that the connection is
fastened. Loose connection may cause malfunctions or interference noise or distortion. Dirt residues must be
carefully removed from the battery connection point.
Then connect the +12V DC power terminal via an integrated fuse to the battery plus pole. The fuse must be
located close to the battery, the length of cable from the battery positive pole to the fuse must be 50cm for safety.
Install the fuse after other connections including the connection of the stereo and the loudspeakers.
Finally connect the terminal of the remote turn-on to the amplifier REM control jack. The cable gauge of
0.75mm
2
is sufficient for the amplifier REMOTE connection.
AUDIO CABLES
When installing the stereo input connection and the speaker connection, make sure the audio and the power
supply cables do not run the same side of the vehicle.
This reduces crosstalk interference to the audio cables.
LOUDSPEAKER CONNECTIONS
In normal operation mode (I. e. one loudspeaker on each Individual amplifier channel), the lowest terminal
Resistance is 2 Ohms per channel.
In bridge mode (two amplifier outputs combined), the lowest terminal resistance is 4 Ohms.
Never connect the loudspeaker negative terminals to the vehicle chassis.
Do not connect the +12V power supply to a loudspeaker output otherwise this will destroy the amplifier
terminals.
NOTE: If the amplifier is operated with lower terminal resistance or incorrectly application as described above,
both the amplifier and the loudspeakers may be damaged. The warranty becomes void in such cases.