Help with used "rock" speakers under 4K


Hi to all,
I am new on this board and would like to ask for speaker recommendation.
Looking for used speakers, under 4000.00 for listening to rock music ( loud and deep bass)
For other music - i got the magnepans 3.6r
my room is about 30x35 and ceiling 20ft (open to the top)
I have search the forums and came u with couple choices:
- B&W Matrix 801
- Aerial Acoustics 10T

any other suggestions?
Thanks a lot.
hakuchosan
My comparison between Magies 3.6 and B&W 801. The room size was 24 feet wide where speakers were and 26 long with another opening at the back end of the room. In total I would say over 1000 square feet of open space and as mentioned I sold the magies and kept the B&W's.....My amp was and is PASS x250
thanks for all input.
due to good deal/price i will receive Magnepans 3.6 and b&w
801 Matrix next week.
once i setup - will post comments on the actual sound experience.
Only thing, not sure if my amp is good to drive them (possible upgrade in very near future )- currently have Accuphase E-408 (integrated). - most likely will upgrade to separates soon (probably will stay with Accuphase).
CLS 215 Cerwin Vega for under 2k.
Legcy Focus 20/20's used for under 3k. The Focus are the best speakers I have ever heard. They also play extremely loud and low.