I have heard the Avalon Ascendant drive by Jeff Rowland model 302 and synergyIIi pre amp. The sound is better than expected.Fast,open ,sweet natural vocals sound.But still cannot replace the Charles Hansen's Avalon Eclipse Original(Not Classic).Because the soundstage is not so 3D pinpoint and holographic.Avalon Eclipse Original is more dynamic and invisable.But Ascendant have more bass extension.But still ,I think the Ascendant have not broke-in yet.Too early to make a judgement!