There are more threads about Bacch, but since this is the Bacch4Mac thread, I'll post here. I started using Bacch with "normal" speakers. However, I liked the Bacch effect so much that a friend told me that the Bacch effect is better with more directive speakers. So, I purchased large Audio Analysis Omega speakers, which are ribbon dipoles, and placed a lot of rock wool behind them to cancel the backwave. The result is an almost 3D sound bubble; music can sometimes be heard behind my head. I also noticed that I am achieving almost 80 dB of crosstalk cancellation. I've seen situations of 23db or something like that. What is 'normal'?
I am sorry for this. Just diving deeper in this subject. After changing from no filter back to the filter and refreshing, more normal values are being shown, like 18dB.