Difference between Polk signature and Signature elite series

[shalitkg]

Hi
Am planning to buy polk S55 and S30, but it has its ES counterparts as well. Is it worth going for ES series?

 

[rajeshv]

If u r going for music kef would be better than Polk .both available at profx

 

[argho]

I have heard the S series was not impressed.
The ES should hopefully be better.