Hi all! After finishing my IB sub, I'd like to build a small ported sub. I've been looking at the TB drivers: http://www.partsexpress.com/pe/pshow...number=264-854 http://www.partsexpress.com/pe/pshow...number=264-832 Due to s/h to Mexico, a pair of 6 1/2" are "only" $20 more expensive than the 8". I'm thinking about a 14" cube (or so), tuned at around 28 Hz with a 3" port (if memory serves me right) for the 8" driver. That gives me approximately 40L of volume. If I were to build a sub with the 6 1/2", I'd have to build a slightly deeper box for both drivers. I've been simulating both options extensively, and I find similar performance among both options, with a little less distortion from the 6 1/2" drivers. I'll be feeding them with the 300-794 plate amp. Would you build the 8" sub, or the pair of 6 1/2" one? why? Is there a disadvantage for either driver? They both seem great.