SoundMax SM-SA604 User Manual
Page 5

5
The gauges of power and ground cables should be enough for the amplifier demands at least 5.27 mm
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 +12 V 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 50
cm 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
0.75 mm
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.
The impedance in tri-mode must be not below than 2 Ohms per channel.
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.