sub sizes?

Does it matter if u have different size sub in your set up? or should they all be the same size?

doesn't matter you will just hit different tones

yea if you need to use a crossover to seperate the frequences each different size plays because if they are playing the same frequency you can get bass cancellation. This can also happen when people run setups with like 10s and 12s because there going to be playing similar frequencies and if they are in phase with eachother then the frequencies will cancel out.

Doesnt matter you will just need seperate amps to push them.