I don´t really have suggestions within that price range. I can tell you about my experience, though: I used to have a Rotel RB-1080 amp connected to CM-4 speakers, and it sounded great. I then upgraded speakers to 804S and the shortcomings of the Rotel became apparent. Don't get me wrong, I think very highly of the RB1080 for the price, but a more revealing speaker made me want to change the amp.
Interestingly enough, the 804S delivered better bass with the 2x75W tubed MC275 than with 2x200W SS Rotel...go figure! One explanation I got was the B&Ws are overdamped (which is why many say they are bass shy) and the 1000 damping factor of the Rotel was too much of a good thing. The tube amp, with it's typical low damping factor, allegedly was evening things out. I don't know if this explains what I heard, but the bass is better. And mids and trebble are just on a different order of magnitude.
Interestingly enough, the 804S delivered better bass with the 2x75W tubed MC275 than with 2x200W SS Rotel...go figure! One explanation I got was the B&Ws are overdamped (which is why many say they are bass shy) and the 1000 damping factor of the Rotel was too much of a good thing. The tube amp, with it's typical low damping factor, allegedly was evening things out. I don't know if this explains what I heard, but the bass is better. And mids and trebble are just on a different order of magnitude.