Has anybody encountered this problem:
When my Logic Audio sequencer (v.5.5) is in loop-mode, my Voyager goes bananas and sends out a strange deep tone when the loop starts over again.
Maybe it’s some kind of reset message Logic sends out. If it is does anybody know how to fix it??? 
If both MIDI in and out are connected and you have MIDI thru enbaled in Logic - make sure the MIDI merge function in the Voyager is not on. MIDI merge echos the Voyager’s MIDI in to the MIDI out.