Bryston amps VS the rest... too clear and neutral?

Stay away from the ST line, which you will probably find fatigueing in the long run, based on what you have said. I find the new SST line far more warm and musical, while maintaing the detail.
dudeaudio

Far from it. I used to have a 4bst, and it had a dull lifeless sound, veiled as if I had some cotton stuck in my ears. The bass was thick, dominant, and one-note. Soundstage was flat, also. I think the Rogue 88 amp is vastly superior in every sonic way and would be an excellent match for your Mirage speakers.

There you have it! To some ears "dull lifeless sound, veiled", to others "a little thin and not very involving", or how about "essentially reproduces accurately whatever is on the recording", or how about "grainy and a bit harsh". Take your pick. Subjective audio, as the expression implies, is just that, one man's opinion, which certainly is worth another man's opinion any day. Or is that really true? Probably is, I would opine, especially so when that opinion is supported by nothing more than casual observations in totally uncontrolled listening evaluations. Objectively, Bryston amps do what they should be called upon to do: amplify the signal with the least amount of noise and distortion. I am very pleased with my 7B-STs. I will leave it at that. If at all possible, try to get the amp to audition in your own room within your own system. Then you can say whatever you like and let your subjective being take over so that you can make sure the emotional part of the music comes through, (some conductors and semi-conductors are very prone to emotional deficit) or some kind of religious revelation type-thing so you don't feel left out from the subjective audio crowd. Good God, it's only a record player! Keep Canada green, buy Canadian audio products. Good day.

Bryston amps tend to do a minimalistic job for the audio system. Extreams cannot be handled well by Bryston since they have bi-polar output stages that are very depended on weather, speaker impedance curve and... and... temperature of the amps.
Despite being absolutely linear in the measured ouput characteristics it might clip in different freequency areas depending on the speaker curve.
Please note that clipping might not be audiable but it will definitely cause a fatigue. An audiable clipping is characterized by trembling sound of the speaker driver. In SS case it is very distructive for a speaker. In many cases it will clip on higher freequencies not being able to drive a high impedance loads. That's where the rated output power realy drops down big time and clipping can occur even on arround 12:00 volume positions.
Most-likely 2-way speakers will be the most suitable for Bryston amps since the curve is not so complexed. Efficiency is not the key in this case since Brystons are enough powerful.
Despite having less gain and higher output impedance 100%MOSFET SS amps tend to be much more stable to different loads and so less fatiguing and very close to tubes even in some cases more preferable.
In your example with Logans, Classe I define simply extra-cost Bryston. If you hook-up Bryston with Logans I bet you wouldn't understand what's realy going on:^).
But do not blame Bryston too much. For a budget among Krell, Classe or even Edge the Bryston is a champ since it sounds not worse than Krell, far better than Classe and much less costly than both. Unbeatable 20 years transferable warranty, unbreakable power supply can tell you that it has a hell of a built quality.
I however, believe that these models I described above are "pedestrians" even including mega-buck Krells; but look out, there are plenty of "porches" on the market:^)

you mean Porsches? I am curious as to how bipolar devices don't reproduce extremes very well. The weather, speaker impedance, and temperature affect all devices. However, temperature is by far the most important since output impedance in a good design will be very low anyway. It is true MOSFETs are better at handling temps (read stability) due to their negative temp coefficients but their transconductance is terrible compared to BJTs. The BJT temp problem is easliy remedied with a good design and its excellent transconductance remains. I am not knocking either of them since they each have advantages and drawbacks but linearity is what we all desire the most.