Hi,
I used to have the Bose 802/402/MB4 combo series II along with the Bose controller. It sounds great. However, when I switched to the Bose L1 system, I never look back. You end up paying more for the 402 system because you have to buy an amp + Bose controller. My suggestion is to buy a used pair of Bose L1 with 2 subs per side. It will sound better and easy to setup.
I also used to own EV, EAW and JBL system. They were all great but I love the Bose L1 system...simply because it is easy to transport, light, sound fantastic.
Last weekend, I attended a wedding party. The DJ guy was using 2 Bose L1 + 8 B1 sub (4 subs on each side). Man...It sounds gooddddddddddd.