I think your on the right track selecting the speakers first and then an amp to properly drive them. An amp is a much easier purchase determined by what speakers you have.
Since you are familiar with how your B&W's sound, I would say the Focals are the most similar. Then the PSB'S. Then the Dyns and finally the SF's which would be opposite of the B&W sound. Which you will prefer will be entirely up to you.
Have fun finding out.
Since you are familiar with how your B&W's sound, I would say the Focals are the most similar. Then the PSB'S. Then the Dyns and finally the SF's which would be opposite of the B&W sound. Which you will prefer will be entirely up to you.
Have fun finding out.