looking to buy a beefy used sub, looking for 12" or 15" 4" coils are always a plus. needs to be somewhere in the ball park of 2000-3000rms@1 preferably 60+ lbs. budget is around $400 shipped.
Not a 4" coilyou can get a brand new fi btl 12 for a lil over 400....i just did an install for a 12btl, and that was a beefy sub...that was my first time ever seeing a btl sub, and i was amazed at the magnet......and i'm pretty fimiliar with large subs, i've got an hdc318 just sittin in my room lol...