I'm not sure if the engineers at Polk realize this, but the threaded holes on the bottom of the RTi100s are not deep enough to fully accomodate the threaded studs of the floor spikes. I found out the hardway recently.
During the installation of the floor spikes, I found that the studs bottomed out before becomming fully seated. When I used an ignition wrentch to tighten them the required additional two turns, my base cracked laterally.
Luckily, I noticed this before applying the wrentch to the second speaker (though I did confirm that the hole wasn't deep enough on the base of that speaker to fully seat the spike either.
Has anyone else come across this problem?
So, what options does Polk offer to repair this speaker (I'll return the complete 6 piece system if I have to return the speaker at my expense to either Crutchfield or Polk . . . ) Can /will Polk send me just the replacement base (since it looks like it is fastened on by only 4 screws)?:(