I'm not sure this is useful since I don't have direct experience with that particular Monitor Audio model but, for what it's worth, I own Soliloquy 5.0's and previously owned Monitor Audio model 14's. I've auditioned the Soliloquy 5.3's and a couple of the Monitor Audio Studio series, similar in construction to the ones you're considering.
My impression is that these two speakers have very, very different characters and, whichever one you prefer, you certainly wouldn't have any problem hearing the difference.
The Soliloquy's soft-dome tweeter is warm, rich and smooth but still detailed, very involving and easy to listen to for a long period of time. The metal-dome tweeter used in Monitor Audio's speakers is extremely dynamic and detailed with a powerful presentation.
My personal preference, for the kind of music I listen to most often, is very strongly for the Soliloquy sound but what you prefer will depend on the kind of music that's important to you and the other gear you use. Since the differences between these two aren't subtle, I suspect you would like one much better than the other and the choice would be obvious if you listen to both.
My impression is that these two speakers have very, very different characters and, whichever one you prefer, you certainly wouldn't have any problem hearing the difference.
The Soliloquy's soft-dome tweeter is warm, rich and smooth but still detailed, very involving and easy to listen to for a long period of time. The metal-dome tweeter used in Monitor Audio's speakers is extremely dynamic and detailed with a powerful presentation.
My personal preference, for the kind of music I listen to most often, is very strongly for the Soliloquy sound but what you prefer will depend on the kind of music that's important to you and the other gear you use. Since the differences between these two aren't subtle, I suspect you would like one much better than the other and the choice would be obvious if you listen to both.