Well i purchased this amp 6 months ago. I have it pushing 4 hifonics brutus subs. It pounds!! I set off car alarms, and shake the streets. Although right after there 30 day policy ran out the amp quit working so i had to pay to have it shipped to boss. I didnt have my amp for 2 months, they did repair it and send it back. But it was just all the trouble of sending it off etc. Otherwise i love this amp its working good now.