I already emailed ID about this and want to hear real people opinions. ID recommends 3 forms of sealed enclosure space for this particular woofer: small (.8 cu ft), normal (1.25) and large (1.5). If I'm mainly listening to hip-hop, rap, and techno which of the 3 is highly favorable? I ask because I plan to buy the box through sonixelectronics and they have 3 types of sealed boxes to choose from that nearly match the internal space.