This question is too vague for acurate recommendation!
For instance, there are active THX movie speakers(M&K P150's for example), studio monitors(Genelec, Westlake, JBL, Mackie,ATC,etc), full range actives (ATC,Linn,Avlar,others), Etc.
What are your applications, your room parameters, your source material, budget, etc, yada, yada?
Come on people!..more info!..work with us here!...don't just ask..."what's the best speaker?"...what's the best amp?"...Bzzzzzzzzzzt.