I have this paired with SOUND STORM SMCM200 Mini 200-Watt Monoblock, Class A/B 2 to 8 Ohm Stable Monoblock Amplifier and mounted in a sealed enclosure in the seat of my Chinese scooter. I love the confused looks I get when people realize that I have a scooter that thumps! I’ve had this installed for about 5 months now and haven’t had any issues with it. I’m more than happy with this speaker, for the $15 I paid for it. I’m planning on getting another pair of these 8 inch subs and the a pair of the 10 inch subs to install in my car.