As with most multi-channel amps, the Legato MW-22 can drive a variety of speaker configurations. For example, you can run 4 channels to each of the front and rear speakers, and then use the remaining 2 channels to drive a couple of subwoofers or wakeboard speakers.

Additionally, you can bridge any of the 2 channels together which means you can switch this amp to 3 or 4 or 6 channel mode, depending on your needs as different cars come with different configurations.6 channel DSP will give you more options. 6 channel DSPs are normally sold at a premium as they offer more functionality as compared to the traditional 4 channel DSP.