Had 2 in a bandpass box, they sound pretty good for 2 10's. I'm going to probably get 2 more. I recommend these if you don't have a lot of paycheck, but want a lot of bass!
I have one of these in my 07 Suzuki Reno and I honestly think it sounds better and hits just as hard as the Alpine Type R I had. Plan on getting one more of these for my car cause I like it that much
I have these speakers in a 04 F-150 with factory set-up and I love them. I took my truck to a stereo shop to look at a new head unit and asked the tech to come out and listen to my system. He was amazed that they sounded as good as they did on a factory head unit. Awesome speakers I tell you awesome and cheap too. Bonus points to Orion for these.
I currently have two of these in a ported box hooked up to a lanzar 1000 watt 2 channel amp in a ford focus. These things hit fast, tight, and hard. I've had them for six years and they have handled years of abuse. Great low budget subwoofers.