Power Amp for Totem TAbú

I have had a pair of Totem One powered for my Pass Aleph 3 (30W @ 8 ohms / 60W @ 4 ohms). But I replace it I currently I use a pair of Tabus. I feel not enterely satisfied with its sound. I feels little dark, undetailed (maybe because its textile tweeter against the one´s metal (aluminum). May somebody give an advise about the sinergy amp-ls? Does somebody think I must change the amp for something like NuForce, or other good one with more than 100 W/ch?
Thank You in advance for your opinion and advise.
CIDES