I would most certainly suggest a transducer like the BK gamer as a start. IMO the ships feel very lifeless without some form of transducer. Are you UK based? I'll have a spare one in the next month or so, a forum user kindly donated his BKgamer to me, I'll be flying home to pick up my original one next month, would only seem fair to share the free one with another forum user.
Or.. a 1KW sub as part of a 7.1 home theatre system.
2 of them is even better...
Z...