I would strongly suggest you include the Harbeth Compact 7. I don't think you will find a more musical loudspeaker. I've heard the Living Voice, Reference 3A and the Thiel 1.6. The best of these is the Reference 3A which begins to get at the integrity of the Harbeth. The Living Voice is OK but gets congested at volume and doesn't have the resolution and involvement of the Harbeth. Haven't heard the Triangle. Good luck.