From what I heard over on the Polk Audio Forum they will be replacing the Lsi series in 2007 or 2008.
Krell Resolution 2's VS Polk Audio LSi15
Interested if anybody has compared the two? I Know both use the same tweeter, outside of that I'd only assume the Krell has a much better crossover network and bass drivers. I love the sound of the LSi's I was wondering if the extra $$$$ was worth the jump up to the Krell.