Precision Port 2″ Flared Speaker Cabinet Port Tube Kit

Got rid of the chuffing(if you don’t know what chuffing is, google it for full explanation) in my son’s sub box instantly! We used a heavy-walled cardboard tube at first, but it was resonating so badly that anything over half volume would make this box chuff so loud it was horrible.Routed the hole to fit this tube, put a small bead of silicone in the corner of the port where it meets the box, then tapped it into the hole. I made the hole exactly the right size so screws were not needed at all, it was a very snug fit.Sub box doesn’t have any chuffing at all now, and bass response is a bit more flat across its bandwidth now.