From what Roger Majeski of Music Reference, and others have advised me, choosing the technically correct tap only maximizes the efficiency of signal transfer from amp to speaker. So the speakers can get louder when the "correct"tap is chosen. But, for nest sound, the way to do it is ONLY by listening, and deciding for yourself. --Warren
Thiel owners please chime in.
Just switched from 4 ohm to 8 ohm with my 2.7s and it's like WOW wouldn't have thunk it. They aren't the most efficient speakers obviously but my BAT VK55 sounds so much better now. What has everyone elses experience been?