Regardless of why they are buying it... It's not in Audiovox's interest to kill the brand. Most non AV enthusiasts are big box store shoppers and consider Klipsch to be pretty close to the best available. But Klipsch really operates at two levels. They sell iPod docks, computer speakers and "okay" speakers at Best Buy. I wouldn't expect that to change much but there may be a quality decrease if they try to continue growth in that market.
I think what you are all worried about though is the possibility of the high end stuff, sold in specialty shops, loosing quality or going away. I have no idea how profitable that business is for Klipsch but I think its that those products exist that got the average consumer thinking of Klipsch when shopping a Best Buy. I'm not sure that is the case any longer.