So, long story short the amp on my Klipsch ProMedia 5.1's decided to shoot craps twice. But they lasted me for roughly 4+ years, so I wasn't too bummed. Anyway, fast forward. I'm not looking for a speaker system to equal the Klipsch in quality, because I can't quite afford that right now. So, I was wondering if any of you have ever used the X-540s, and if so, are they worth the purchase?