Since you are planning to use a single sub and want to be loud, I would suggest that you:ryukeong said:Like that also consider a lot? i know many ppl got more....ha, hm....my reason actually to get surround effects, and the sound quality is consider quite good....
I mention b4, i need quite some space at my boot to put tools and stocks due to my job, so only use one sub...
1. use a 15" or 18" sub with high displacement.
2. Port it around 45 - 50 hz.
3. built the box as big as you can afford.