Hey guys.. Just need advice with a DIY sub to finish off my system. Current setup Receiver - Pioneer 1014tx Center - Athena AS-C1 Front/Surrounds - Athena AS-B2 Rear Surrounds - Athena AS-R1 I'd like to say my budget is high but its only about say 300-400$ canadian. What would be the best bet for a speaker you'd reccomend? The enclosure is between a sonotube and a cube and i'm trying to figure out how to find out how long the port would have to be and how big the enclosure should be in order to get the most impressive results. So far i'm leaning more towards doing a sonotube just as i said before unsure on dimenions and port location/length. Basically a very good design for an enclosure is what i'm looking for.