Hello! My name is Lance and I have two kids (14 and 12 yrs. old). A couple of weekends ago we finished installing GR Research's Klipsch 600M upgrade. Prior to surgery, my daughter was apprehensive about the upgrade. However, when they heard the upgraded speakers my son said "I never thought speakers could sound this good." My daughter (the chief engineer of claying woofer sub-frames and No-Rez installation) now wants to build Mr. Richie's XLS kit because she is intrigued that other speakers could be on a "different level" than what we have. As for me, I'm going to need to find supplementary job!