SoundMax SM-CMD2022 - Manual (Page 7)

7
Caution:
DO NOT insert the control panel from the right side. It can damage the
control panel.
The control panel can easily be damaged by shocks. After removing it,
place it in a protective case and be careful not
to drop it or subject it to strong shocks.
The rear connector that connects the main unit and the control panel is an
extremely important part. Be careful not to
damage it by pressing on it with fingernails, pens, screwdrivers, etc.
Note:
If the control panel is dirty, wipe off the dirt with soft, dry cloth only. And use a cotton swab
soaked in isopropyl alcohol to clean the socket on the back of the control panel.
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.
Pic. 3