my 2 cents
i am a big hegel fan, they are wonderful amps for the purity of sound they deliver, but they are made in china to reduce cost and they hardly pass as audio jewelry
in my experience, sonically they do not take a back seat to luxman's solid state, i personally believe the upper models marginally surpass the luxmans for bass control and treble purity (i have heard the 509x and 507 models)
but i can understand, those attracted to luxman will usually not be attracted to hegel, and vice versa