I am not sure the case of the TT2 being low powered compered to an amplifier, comes fully into play. I think there is a reason why Class A goes louder and more powerful than any other class/per watt. (I did ask in this thread but no-one answered.) Not sure what it is, and so I also might be wrong. Linearity of current delivery is important too for making speakers sound full. (As music sound frequency drops, current needs to increase to keep power the same.) ... For an example, the Musical Fidelity A1 amplifier was only 20W per channel when released. Yet it was a full blown hi-fi amplifier.
https://zstereo.co.uk/2013/03/17/musical-fidelity-a1/
Some speakers however retain most if not all, of their character at low volumes. I have read that
some B&W do not, e.g. the B&W 805. The negative point on this review saying, they sound best at high volumes.
https://www.whathifi.com/bw/805-d3/review
Some speakers lose a little life and sparkle at lower volumes. Some maintain those qualities. .. Either way though, using a TT2 direst to drive speakers or using an amplifier. In desktop use, as some like myself use speakers, they will be driven at low volumes anyway. Meaning the hunt for speakers of the right size, performance, and low volume life, makes choosing speakers a task.
Totally with your impressions of the Hugo 2 vs Mojo. Agreed all the way. ... Additionally I find it disheartening that some folk who have upgraded over the Hugo 2, are now rude about it. Personally I won't even criticise my Meridian Explorer that can be bought for £100. Or my Mojo.