I remember very well the sound of Energy ProMonitor 22 powered by a Luxman L405 at the time :)

I recall listening to the 105.2 when they were the actual model and even thought then for some material they sounded a bit sharp at moments (unfortunately, do not remember the amp behind) - so not polite definitely. This experience may had pushed me then more towards the 104.2 If I ‘m not mistaken, KEF used to sell the optional KUBE then for further adjustments that may had helped improve a bit the low end behaviour (B&W had offered something similar with Matrix 800 series beginning of ‘90s).