Amazing! Had them matched with a Prime R500-1 (from 2011), in a dual 10 inch sealed enclosure. Professionally built. Let me tell you, the detail in the bass was amazing! For that incredible clarity you must go SEALED box, with dual 10 inch subs. Like I did. Unfortunately, the subs and amp burnt out after about 8 years of amazing performance. Not sure if the recent rear end collision my car received played a part (fender bender).... Either way, I've ordered the punch version of the speakers, and the R500X1D. I'm rebuilding my setup!! Yay me!!! Music is not the same without this.
Pros: tight bass, sealed, adult bass, clean, loud, detailed, clear