Well here I am still continuing to listen to these Magnepan LRS panels - they are very good indeed - however I did need to purchase a powerful amp to get more out of them.
I have chosen to use a Musical Fidelity M6si which is good ol’ fashioned Class A/B which seem to work very well.
I am not a bass freak so - I will stick to the LRS for now despite there being a very good deal on a 1.7i nearby which is tempting - but I shall refrain ...
It also helps to open the sound a little with valves in the mix somewhere - in my case the use of an Audio Note 0.1x. DAC.