Hi Jon,
I thought I might chime in since I currently own the Reference 3A Dulcet, Spendor SP1 (forerunner of the 1/2), and Living Voice Auditorium speakers. I am trying to sell my Dulcets, but I will explain. I have two set ups, one in the basement with a Audiomat Arpege and Vecteur L4 CDP and the other in the family room with a Unison Research Unico, Musical Fidelity A3, and Rega P3.
I will probably keep my Spendors forever. They always sound right to me. Smooth, relaxing, and musical. They are magic for me. They were my first really good speaker and everything I listen to gets compared to these. My ears have been Spendorized. They are exceptional for classical, folk, jazz, and bluegrass. Probably not the best for rock and pop. They sound very good with tube amps. They will not impress the audiophile that listens for sound effects or heart pounding bass, but music lovers will be won over.
The Living Voice are similar to the Spendors. They have better bass, detail, and are a little more exciting sounding. Not as sweet sounding. Not better than the Spendors, just a little different. Much nicer looking the the Spendors perched on there stands (WAF). I am currently using them with the Unico.
The Dulcets are more detailed and revealing than either the Spendors or the Auditoriums. I was using the Dulcets with the Unico for the first six months. I was impressed with what these small speakers could do, but I was not totally satisfied. They sounded very detailed, great bass, great imaging, great all around small speakers, but they were a little edgy and a little too harsh for my ears. I recently hooked them up with the Audiomat Arpege and I am now very, very impressed and happy with the Dulcets. They apparently love tube amps. Its funny the Dulcets are still revealing and detailed, but the Arpege really smoothed out the sound. The fatigue and edgyness are gone and replaced by a smooth, detailed, musical sound. I actually now really like the extra detail. I am going to probably purchase the DeCappo I if I sell the Dulcets, in my 14 x 30 room I feel the DeCappo may be a better fit. If I don't sell them that will be OK. I am just now seeing what these speakers are really capable of.
If I had to keep only one set of my speakers, I would chose the Spendors. However, I could be very happy with the Living Voice or the Reference 3A. I would definetly want a tube amp to drive the Reference 3A's.
Hope this helps.
Chuck