My stacked walnut cased Large Advents powered by a pair of KT88 tube monoblock amplifiers. The crossover capacitors were inexpensively upgraded (Solen caps) and the stuffing was adjusted. I also put good wire inside. These speakers have been subjected to critical review by a group of audio builder/designers who found their musical presentation to be remarkably good and competetive with very high end systems. Soundstage breadth and depth is perhaps the most immediately impressive feature of the inverted stacks. Bass authority is hard to beat, even with a sub, and detail, transparency, and extension are all there. See Harry Pearson's review in The Absolute Sound archives for the stacked pair. Mine sound better due to the capacitor replacement. I am using a $4K pair of beautiful, superb modern speakers plus dual subs, but they do not match the Large Advents in some of the dimensions mentioned above. If my wife would relent, I would move them back to the living area and perform further tweeks.
