Hi all, new to the forum and the Polaris community….finally. Working on putting together our sound system now and have gone with the Infinity 612M’s (4 of them) and Fosgate RM110D4B 10" sub.

The Infinity speakers are 75rms and the sub is 200rms/400max I’m thinking a 4 channel marine amp at 6-700 watts should be good. Running the 2 front speakers off one channel, rear 2 speakers off another channel then bridging the 2 remaining channels for the sub. Trying to understand how running two 4ohm speakers off one channel affects the omhs of the amp and how to calculate the total amp watts I need.

Kind of a challenge building the system instead of an off the shelf solution but it’s fun learning!

Hi all, new to the forum and the Polaris community….finally. Working on putting together our sound system now and have gone with the Infinity 612M’s (4 of them) and Fosgate RM110D4B 10" sub.

The Infinity speakers are 75rms and the sub is 200rms/400max I’m thinking a 4 channel marine amp at 6-700 watts should be good. Running the 2 front speakers off one channel, rear 2 speakers off another channel then bridging the 2 remaining channels for the sub. Trying to understand how running two 4ohm speakers off one channel affects the omhs of the amp and how to calculate the total amp watts I need.

Kind of a challenge building the system instead of an off the shelf solution but it’s fun learning!