I have a 20 year old Velodyne F-1200, servo-controlled subwoofer that has recently checked out. I unsoldered the leads and found the cone operates normal using the flashlight battery check, so I'm assuming the driver is OK. However, this thing is 20 year old technology and while I haven't kept up with advancements over that time frame, there is likely a better solution than just repairing the old one.
I am retired, closer to 70 than 60, but still have good hearing and enjoy music, particularly jazz and classical (especially pipe organ, which is the reason I originally bought the Velodyne).
My system is a Carver receiver, Yamaha turntable (I still listen to vinyl on occasion) el'cheapo CD player with a pair of Velodyne DF-661 speakers in a 25 by 15 ft room with 10 ft ceiling of masonry construction, i.e., quite live!
I have been very satisfied with the performance of this system for my purposes, regarding the subwoofer the weak link if I were to think of it that way. Whether I would have been happier with a larger sub or with two or more, I don't really know.
So this is an opportunity to make a change for the better, with little feeling of regret for disposing of a perfectly functional component. Don't worry about offending me for my choice of components 20 - 30 years ago. If all that needs to replaced at the same time as the subwoofer, so be it! I'll deal with that separately.
As for a price limit -- I really don't think that way -- I just save my money until I have enough, then I make my purchase, i.e., I would rather make a wise purchase than a smart deal.
Thanks, in advance.