I'm looking for a new sub to put with either B&W 600 series LCR's or Totem Acoustic Mite-T-C LCR's. I've demo'd Velodyne HGS & SPL series and Sunfire Mark IV. Both sound great at the dealer, but how will they sound in a large room? My room is 20x15 with 17' sloped ceiling and is completely open at one side. WAF requires a small sub that can be tucked away in a corner.