Buggtussel owners = which subwoofer?

I have the Buggtussel Amygdala's and wondered what other owners of these excellent speakers are using for a subwoofer?

I can't afford much and certainly can't afford the Tegmentum which would be an ideal match.

Any comments from fellow audiogoners will be appreciated - whether you own the Buggs or not.

Thank You
REL STRATA 3, one of the few, if not only sub I'd consider.
Buggtussel - wasn't that where Aunt Bea was from?
Take a look at the NEW Velodyne DD series subs.
Do a search a AA and what is said about this new design.
Many old REL fans buying them.