Yeah these boogers are nice. I wish I did have the space under my dash for it. Even though I bought it from him a while ago, I didn't even get a chance to mount it until last month when I got zapco dc ref amp, to run it active.
I ran it for less than a month off my zapco, turning down the output as low as I can go without muting it and it still hurts my ears. In a good way though.
They didn't take much to tune at all, my amp only has a 10band eq but with TA though, even though I didn't even get to that part yet. I basically left the eq about flat. I bumped up the 15k hz + range a bit since I like very high highs....
Now I am running a set of Dayton RS28A, it cannot touch the output of the horns in anyway shape or form.
But yeah I have a scion tc, with the horns under the dash I foot kept on hitting the motor when ever I am on and off the clutch and it got annoying real fast.