Rockville RXM-S6 2600W Peak/660W RMS 6-Channel Marine Amplifier, PA Microphone, Waterproof Design, Bass Remote for Boats and Marine Audio;

The RXM-S6 is a 6 channel high power amplifier with 2,600 Watts peak output,
1320 Watts RMS output (6 x 220 RMS @ 2 Ohms) and 780 Watts RMS (6 x 130 @ 4
Ohms). You can also bridge the amplifier and get 3 x 440 Watts RMS @ 4 Ohms. The
CEA-2006 compliant rating is 70 Watts x 6 @ 4 Ohms and 110 x 6 @ 2 ohms

This 6 Channel marine amplifier is amazing. It gives you amazing options for
your marine speakers and/or subwoofers. Here are some wiring configurations. You
can run 4 channels to (4) full range speakers, and then 2 of the channels to (2)
subwoofers. You can also run those last 2 channels to wakeboard speakers if you
wanted.

You can also run 2 speakers to each channel and connect for a total of 8
speakers to the 4 channels, and then you still have 2 channels left for your
subwoofer(s). Another option would be to connect 12 full range speakers.

You can bridge any of the 2 channels together which means you can run this is a
6 channel, 3 channel, or 4 channel amplifier. So if you need 1 channel to have
double the power, you can just bridge 2 channels into 1 and double the power.