This is the biggest speaker I ever own so far. Due to its size and small room in Hong Kong, I have to gave it up after 3 years use in 2006. I use 300B to drive it but with its 90dbslp sensitivity, it is still unable to drive it to satisfactory sound level and quality. Later I build a Aleph 60 and it sound much better but the booming is still there due to small room effect. So I have to gave it up and sold it for 10k HKD!
