Review written by Dee from Natchitoches, Louisiana

I brought four (4) B12D4's and put them in my 1994 Mazda B4000 truck with a blow through design on two (2) P1000.1's Massive Audio amps and these subs can take all of the power that I'm giving them. In other words DAMMMMNNNNN!!!!

Review written by Cesar from Bryan, TX

I bought these sub's a week ago I had them installed and WOW do they bang! I would recommend these subs to anyone.!!!

Review written by Nick from Aurora, Colorado

I bought 2 of these 3 month ago, and hooked them to a rockford fosgate t2000.1 bd mono amp, and put them in a ported box... all I could say is Dammmmm!!! I knew hifonics made good amps, but i didn't know that their subs were just as good. these subs hit like some high powered 15s, and have amazing clarity. for a hundred bucks you cannot find a better sub.