test your speakers using several different brands of cones the differences can be drastic had Mirage M1 Si speakers one brand sounded absolutely great the others sounded terrible I couldn't believe how much different they could sound. So experiment.
I've a confession to make don't tell my wife
Well I've been living with my Nautilus 803s for a couple of years now. They're placed on the carpet about 9' apart and about 15' back from my listening postion with plenty of space behind them. In the packaging there were a couple of (wimpy) jumper cables and some silver pointed thingys. Well I just put those pointed thingys on the bottom of my speakers. The speakers were great before, fantastic now.
Please forgive me.
Please forgive me.