So I just bought a Hegel H390 and

Haven't heard the KEF Blades, but in the right room, i.e. they're adjacent to room sidewalls to work with their side firing woofers, I think they'd be some magic.  I lived with a pair of LS50W on stands for a while and was completely shocked.  An excellent point source is always kind of arresting when you hear it.  KEF is doing something fabulous with their Uni-Q driver.  However, the Blades will seriously blow your budget.  With a pair of the new generation LS50's you'd have money for a pair of nice REL subs too.  They may seem like, "going cheap", or going small but I suspect they fit very well.  I wonder if anyone in here has them hooked up in a nice system??  

I have the original KEF LS50's hooked up to a lot of good amps. Currently I have the Benchmark AHB2 monos on them. I love how the AHB2 pair with the LS50. If I could get a Blade to fit into my room I would but I am using the LS50 + KEF KC62 sub. It is not too bad but a far cry from the Blade. 

The KEF Reference 1 is a pretty nice speaker with Hegel gear. They should start to get discounted soon with the META upgrades that KEF should be introducing soon for the Refence and Blades.

@jjss gave a good framework.
My two cents is that asking "what matches to the hegel?" is the wrong question.  Any really good amp ought to work well with a wide variety of speakers.  what you really need to ask is "what speakers do I like?"; what speakers can drive my room?" and "what speakers are appropriate for my musical taste?" etc.
A really great amp ought to be a chameleon these days. Mine is.

With the limited number stores around me, hearing most of the speakers discussed will be really hard to do, so I’m thinking I’ll get a pair of LS-50 Meta’s, as several have suggested and go from there.  Everything I’ve heard and read says even if I don’t like them, they should be pretty easy to resell.
Again,  thank you all for your suggestions.

JD

In your 15X15 room a closed enclosure speaker might help to control bass better than a ported type, I have a room very similar in size and Magico ( old V3) made it for me, that after many trial and error…