Review on DROK 4 Inches 4 Ohm Audio Speakers for Cars - 40W Anti-Magnetic Car Stereo Speakers with 87dB High Sensitivity, Thumping Bass, and Loudspeaker Subwoofer - Ideal for 2.0/2.1 Home Stereo, DIY Boombox, and Satellites by Austin Olson

I use 2 of these behind my seat in my S10 pickup. I run it from my old school Kenwood KDCMP828. I made custom boxes. Wow, these little guys put out some good bass. I even feel a tingling in my back. I've been using them for a little over a month and they're still rattling! It's not a 12 inch sub, but for $30 I have one hell of a stereo! Thank you for selling a quality product. I will definitely buy again.