“Still asking about a ceiling mount... Thanks for the Bose support answer about using these brackets on a ceiling mount. Please let me clarify...the ceiling is a vaulted ceiling application at about a 50-55% angle, and the picture and name/description seem to imply that a ceiling mount with the speakers aimed at an angle (vs. straight down) is entirely possible....is this true ? Should I be able to use these on the vaulted part of the ceiling and angle my speakers downward ? Also, the pre-wired application I mentioned is regular 2 wire speaker wire (not the supplied wires with the little connector on one end, and the RCA jacks on the other)...given my 2 wires, will I really NOT NEED the AC-2 adapters to get the proper connector onto the end of my "bare wires" ? Thanks again...FRD”