I owned the big Duntechs (forerunners of the Dunlavys) back in the 80"s & they were substantially better in just about every way than anything else available at that time other than maybe the Infinity IRS & the bigger Apogees. The had no spikes & even as big & heavy as they were, they benefitted from my silly looking but highly effective retrofit. I lived in a rented, cool converted carriage house on an estate & my system was in a large living room (20' x 30') w/ a hard oak paneled ceiling. I put a piece of felt on top of the speakers, then a small piece of plywood w/ a 2x 6 going up to the ceiling capped by another small piece of plywood. This was wedged in tightly to put reasonable downward pressure on the speakers. It made a substantial improvement in clarity & dynamics. Along w/ my Conrad Johnson Premier One power amp & the original Basis turntable, lots of good times & good music!
If you can get those speakers for reasonable $, & an they sound good, go for it! Very little better options today for anything less than about $20,000.