Thanks again @georgehifi for the suggestion and 1st hand experience with that setup.
What I was trying to get across, because your purchasing very $$$$$ hi-end, any dealer "worth his salt" would only gladly demo his $$K preamp "in your system" up against going direct from the MSB.
This way there is no outlay for the preamp for yourself if it doesn’t cut the mustard, if you buy one you "could" end up stuck with it to resell at a substantial loss from the new purchase price. (like a new car value drops at least 15% when it’s driven out of the showroom) My view is the odds are with you going direct.
Cheers George