The wife nixed the idea of building and infinite baffle. Something about my rudimentary carpentry skills. She did say I can get whatever I want in the way of a sub. So, would you get 2 svs cylinders, the b2, or wait until the b4 comes back out? My ht is an enclosed garage about 22 feet by 35 feet. No large openings as I can shut the doors to the rest of the house.