You're right if the system can play classical music well then it can easily play everything else!
The right choice of speaker also depends on your electronics and room. I'm not familiar with the Cantons but all other 3 manufacturers make fine speakers, the problem is that most of their speakers in theses price points are generally difficult loads to drive. Your amplifiers are an important part of the equation here.
Personally I would bypass them all and look at horns for speed and large scale dynamics but that also depends on your electronics.
Disclaimer- Audio Dealer