Subwoofer for Wilson Maxx2


my room is about 22x33 ft, my maxx2 are sitting about 11ft from the front wall, and 8,5 ft apart

i get very good image, width..depth..etc.., however not enough bass

i tried to locate the maxx closer to the front wall, from 4 ft..etc.., however at 11ft everything are better, but not enough bass

so i want to add 2 subwoofer ...wondering any Maxx2 users or full range speakers user are running subwoofer and able to give me some suggestion ?

i do not want to spend that much for Wilson Sub...
mgmmgm
i am quite old school..and still having a thinking..of keeping all ..(of coz except CD..etc) to be analog

not sure about those digital room EQ..or correction.., but seem easy to handle..
so make thing properly..Pre amp to EQ, then a SUB crossover , then a pair of subwoofer?
If you properly eq, there's a good chance you will not need subs, as the speakers are capable of full range response on their own. However, most eq's are digital- not analog. If you want to go from an analogue pre amp- you need to find a used cello pallete. Digital eq's would go between the transport and then the dac goes to the pre amp like normal. If you list all of your components it would help.
If you want to add subs with serious low end and super speed and transparancy, you should look at the wisdom audio sts subwoofer. I should disclose that I am a dealer and sell these. However, it is the best subwoofer I've ever heard. It is a pair of 15's in a regenerative transmission line enclosure. You can go to the wisdom aid owe site and read awhile paper on this. It is big. It is 101db sensitive. It goes down to a legitimate 15 to 20 and will move as much air as roughly 5 or 6 watch dogs or jl113's (which I also sell). It is unbeleivably fast and transparent. It is the sub I would use, if you want to add subs. There is no reason whatsoever to think that they need to be stereo subs. If you did this, you should run the maxxes full range and simply add the subs- I would try 30 to 50 hz as a crossover point. This will allow you to add more energy into the room where the maxxes are beginning to roll off ( due to room anomolies- no fault of the maxxes) and you have a good chance to linearize the bass response. Check it out- it's a beast, and the fastest, quickest bass I know of.
i had Cello Palette SIV and MIV ..and sold them, as if i need a EQ again.. i like to try something different, i do sell a lot of cello at asia, and i always keep a pair of cello performance II..as it drive almost all speaker whatever i plug in without too much matching issue

at this moment, i am using a pass labs XP-20, Cello Performance II and Meridian 808.2

it is very fine to be a dealer and share here, i suppose most dealer enjoy this hobby too

thx for your advice