Im building a box like this. http://img62.imageshack.us/my.php?image=2c...z325sqin7bo.png Except im just gonna put a one of those plastic ports cause it seems easier to build, anyone got the measurements for a box like that in 2cu @ 29 hz, and pictures maybe ? And should i use a double front frame ? What amplifier is good for the rlp 12" D2, dont want to pay to much for a amp. Thanks.