I currently own Maggie 1.7 and 3.7, NHT 3.3, NHT xDS and Gallo 3.1. I love the Maggies for most music, but there are times I long for more dynamics and extended bottom end.
After a recent trip to audition PSB Synchrony Ones, B&W 804s, Wilson Sasha W/P and Revel Ultima Salon 2, I have the following thoughts. With the exception of the Synchrony Ones, I could live with any of these. The larger, more expensive speakers provide a lower octave that depicts a larger volume cabinet, but that's the problem. They sound like a larger speaker, but don't necessarily sound more natural. The Synchrony Ones just produced a non-musical bass sound and the imaging was not on a par with the others. It did do a good job on brass with a realistic "blat" sound.
The most completely integrated sound came from the Gallo 3.5, which had a great balance. Dynamics were crisp and impactful, soundstaging was amazingly wide and deep, and its bass sounded less singled out as a feature than on the larger speakers. I had long been a fan of the Revel, and my preconception was that they would be clearly superior to the Gallo. They were actually not as good in most aspects.
I will be getting a pair of the Gallo's and am looking into the Gallo amp, which purportedly allows the speaker to reach down into the 20's.