I've fairly recently gotten myself into car audio and find myself always trying to improve upon my system. I know it isn't much, but as far as deep bass goes I have a Kicker Comp 12 in a decently sized sealed box bridged on a 275 watt (rms) kenwood 2 channel amp. The box it's currently in has a few holes in it (I literally purchased it for $13, it was the display model at BestBuy) that I tried to caulk but somehow still allows for a slight whistle at loud volumes. I realized that for the type of music I listen to, a boomier, louder, ported/vented box would meet my needs. I am now looking to purchase one for the Kicker Comp 12, I'm looking at one on amazon from atrend. It's 1.7 cubic ft of airspace and it's apparently tuned at 33hz. Do you think this would be a good investment? I ask because I know ported boxes are sort of a crapshoot. My only thing is I can't go above $60. I'm only 17.