Polk Audio Speaker Search

I currently own a pair of vintage Polk Monitor Series speakers and run them on all McIntosh equipment. I bought a pair of McIntosh ML2 speakers to compliment the system and was kind of disappointed in the sound. They had a wide ranging, beefy response, but not that punch and snappy clarity that my Polks bring to the ears and senses. I know that Polk currently makes junk, but wondered if there's a pair that is similar that will fill a bigger room. I'm not specifically looking for another pair of Polks, but something similar to the crisp, thud in your gut feeling I get with my current Monitor Series speakers. I've been looking at the SDA Polk speakers, but don't know anything about them and some people have steered me toward B&W. Any thoughts or advice?