The SYN6 is a universal hybrid amplifier that allows you to configure it to power any combination of speaker systems. There are two different power sections that consist of a 4 channel section with a higher power 2 channel section all on one chassis. The SYN6 gives you enormous power in one simple to install package. It has high pass crossover capability on channels 1 through 4. While adding high pass or low pass crossover capability on channels 5 and 6. Channels 5 and 6 also have the higher power output. Adding to the feature set is rca summing that allows you to attach one set of rca’s to drive all channels, separate the amp into 2 rca inputs or use all 3 rca inputs. This makes it very simple to wire and configure the amplifier without the need to rca y adapters. The SYN6 can run Marine Speakers and subwoofers, Marine Speakers and tower speakers, tower speakers and subwoofers or just tower speakers.