I have a huge system in my car running on 2 ohms with 3 woofers and it pounded hard core. It pounded so hard to where people would hear me from blocks and blocks away and I love that. My question is, my system is not hitting the lows it used to. What could be going on with this?

Some say I am going crazy when I tell them to listen for it but ... they just dont know because I listen to all the time and they dont.

WHAT COULD IT BE???