SoundMax SM-CMD2021 Car Stereo System User Manual


 
7
Electrical connections
Speaker wiring notes
Follow the above wiring diagram to install the head unit with new or existing speakers.
 This unit is designed for use with four (4) speakers with an impedance between 4 Ohms to
8 Ohms.
 An impedance load of less than 4 Ohms could damage the unit.
 Never bridge or combine the speaker wire outputs. When not using four speakers, use
electrical tape to tape the ends of the unused speaker outputs to prevent a short circuit.
 Never ground the negative speaker terminals to chassis ground.
Connection scheme: