I recently purchased two LSI-25 Polks , LSI-C , PSW PRO 600 sub and Polk recommends using a 4ohm receiver but after reading some threads and a post from the Audioholics they say a high end 8 ohm will do fine. So now which receiver to buy ? Does anyone have any suggestions or maybe the same set up on which receiver works best with the Polk LSI-25's ~ on both sides of the spectrum music and movies . Thanks for your time it'll be greatly aprreciated. :