I never expected to have such a great sounding subwoofer in my truck. However, I’m pleasantly surprised & impressed with the fit & function of this affordable box. At normal listening/average listening volume it performs flawlessly. But, just crank up the volume and you can definitely feel the bass that maintains its accuracy. Just good old deep bass. Although, this is for 10” subs, I did install a pair of 11” Focal 27V2 powered with a Fosgate P1000X5.