in the Boulder?Longmont CO metro area. I have one of my dad's Infinity CS 3007 speakers that needs repair. It is crackling, and just sounds like poop. The other one sounds great, and we know it is not the amp. Have tried changing sides(left for right and vice versa), and it moves with the speaker. Got some free Sony speakers(total junk compared to the good CS 3007) and they don't crackle. Where in the Boulder/Longmont area can I go to have this fixed. Or should I just tell him to buy a surround setup and toss these?