I used to have them and could not get them setup correctly in my room. Way too much bass resonating off the floor. After several different spikes and Herbie's devices I ended up placing them on Aurelex Gramma's. that took care of a lot of the problem.
I ended up selling them because rear ported speakers don't work in my room. I even tore the Drywall off the entire wall behind the speakers, packed it with insulation and put up new drywall. That was one of the best decisions I ever made but still opted for front ported speakers. I didn't like the plugs all the way in the ports and didn't like them all the way out. Not a bad speaker if you can pull them far away from the wall.
I ended up selling them because rear ported speakers don't work in my room. I even tore the Drywall off the entire wall behind the speakers, packed it with insulation and put up new drywall. That was one of the best decisions I ever made but still opted for front ported speakers. I didn't like the plugs all the way in the ports and didn't like them all the way out. Not a bad speaker if you can pull them far away from the wall.