I just picked up an eden D410T and am looking to pair it with somthin alittle boomier for that deep rich low end. I play through a mono/bridged 900 watt power amp with a RBI Sansamp Pre. I play medium/large rooms (250-500 people crowds) in a rock band and am wondering what you guys recomend. Will the 15 do the trick?? is the 18 to slow?? any help would be greatly appreciated.