I am pretty sure polk is discontinuing this line of amps. No longer on Polk's website and Crutchfield says discontinued on their website.Good to know. Makes you wonder why there's a fire sale on these though. Possibly these are b-stock that had some QA issues? Either way, for their price, it's still worth the risk for the power. As long as they don't take any other components out with them if they do go.
Oh, I understand, but it's still wierd, I haven't seen any large sales on the other amps in this series. Still an amazing deal. I'm debating if I want to go with 4 of these over the NVX or Zapco St-X amps... The price per watt is truly amazing. And I like to save money whenever I can.