hey guys i'm selling my 2 10 alpine subwoofers. The reason i'm selling them is because i have trouble with debt and so i need to sell things off. I have not pushed them hard at all, they hit clean and hard. i also have 4 channel amp. and 2 channel amp. THe 4 channel amp is rated at 75RMS x 4 and the 2 channel amp is at 250RMS x 2. i also have a Capacitor, it is LED and it tells you the voltage.