Best combination of sweetness and dynamics?

Gents,
What would you recommend for a pair of speakers that are really sweet on the top end (Dynaudio-like) but easy-to-drive for excellent dynamics, weight and slam ? I listen to a lot of rock and a sucker for efficiency and a full sound at low listening levels (deepest bass not necessary). I want to able to get the full scale guitar distortion and full mid-base without sacrificing too much on the resolution and transparency. Feel free to recommend a combination of speakers and amps. Thanks in advance and happy listening.
Cheers