I knew they made some great subs after hearing ones a guy I work with has in his truck. So I decided to buy a set of TX68 6x8's to replace the junk ones in the front door somebody installed in the F-150 I bought for my son. For the price if they don't sound good then I'll get something better. Ordered on a Thursday and had them Saturday afternoon. Low and behold while installing them I checked the backdoors and found a set of disconnected FSX Pro 6.5's. Goldmine! Ran all of the appropriate speaker wire from these speakers to the amp, adjusted everything, and they sound immaculate for the price and also having a stock Sony Sync2 head unit. Got them tuned up with the subs that were already in the truck and it sounds amazing. I don't have pro quality hearing anymore after working on jets in the military for 20+ years but these sound loud and are pretty crisp for a set of coaxial. I would definitely buy Skar products in the future. Keep up the good work.