Blackraven.

Sensitivity looks too low on the Elac and Wharfedale's I did look at both but balked at the idea even for my current amps since they are not efficient. The Jamo C 601's that I still have but boxed up when I purchased the Jamo 68's are only 86 db too. Maybe I could do a test with them to see if they can adequately drive the tubes before deciding what to do.

Klipsch. Does this particular speaker sound as shrill (high end) as the Heresy's? If so, would the tubes tame it some? I need a more mellow high end. Aside from that issue they might be adequate. A little more money than I would like to spend but I can always wait a couple more months to purchase.