PC Review has posted a review on the Polk AMR 150 speakers.
As these speakers are designed to be a cost effective solution (yet still relatively high-end), the emphasis is loaded onto the front speakers as opposed to the rear. From the specifications outlined above, you can see that the front speakers house a 3" Midrange and a 1 1/2" Tweeter driver complement - yet the rear have only a 3" Fullrange.Read more
The extra features on the front satellites gives a great boost in clarity, but helps keep costs with fullrange rear satellites. The rear satellites are not as crisp and sharp sounding, but they don´t need to be, as in games / DVD´s the speech will be coming from the front, only 3D effects will be heard from these rear speakers.
