Quote Originally Posted by rontec View Post
Another consideration in building new cabs....the 511b will require a minimum of 24". Using the 811b you can narrow the cabs another 5"-6". I prefer the 511b in larger rooms but regardles of which horn I would focus much effort on EQ ing the horns(a tip from GM in the past). IMO this is where the mod.19's crossovers came in to play and were so responsible for that great sound! (love to hear the GPA's too) However, as GM pointed out phase alignment may suffer a little with the 511b. A crossover mod could help though.
Thanks...my existing cabs are 24 inches deep...so I'm ok there. When you say you prefer the 511 horn in larger rooms, what do you define as a large room? My listening room is an open lounge/family...approx 20 feet x 14 feet, then opens up bigger. Ceilings are tall also, 11 feet. Distance from audio to seating is 16 feet.