No matter what speakers I have, I always have a pair of sub to enhance the overall musicality of the system. I can never go back to a speaker system without the support of subwoofers. Prior to my pair of JL F212V1, I was using a pair of Revel Sub30. The JL was a step up in my music enjoyment. Last year, I decided to add 2 more subwoofers to help smooth the bass around the room. Instead of adding JL subs, I bought a pair of Funk Audio 21.0LX. The added Funk Audio subs is another step up in my music enjoyment. I tried to setup the speaker system with the 4 subwoofers but I prefer the speaker system with JUST the Funk Audio subs. Now all 4 subs is used in my HT system.