Nater&Hailey
Junior Member
I just got the AQ 4.0 3 days ago and with stock alt and battery, it gets loud. Running an Alpine v-power 2000 at it at 2 ohms, great sub but very power hungry. Could sound a little better, and read another forum they are mainly constructed for COMPETITIVE use, handling up to 8k for a burp. Highly recommend if interested in the 12s class.