I would go with REL, but I have been very impressed with all the REL products I have owned, all the way down to the Q108 (which I ran dual with a pair of Wilson Duettes).
Based on your room size though, I would suggest getting two REL Storm III used subs for a combined delivery cost of under your budget.
The RELs will never overpower your room, unless of course you don't have them set-up well. They are quite easy to set up, very easy to blend with different speakers, have a musical and fast response/output and are easy to own.
Based on your room size though, I would suggest getting two REL Storm III used subs for a combined delivery cost of under your budget.
The RELs will never overpower your room, unless of course you don't have them set-up well. They are quite easy to set up, very easy to blend with different speakers, have a musical and fast response/output and are easy to own.