Thanks for your feedback, guys.
I have a pair of B&W 803D3 and a Accuphase E-480 Amplifier which both are on the analytic side of the sound spectrum. So I was not sure, if with the Lumin T2 it would be too analytic, too sharp and cool.
But it gives me hope. :-)
I'm burnin in the Lumin for two days now and think, that it opened up already a little bit in the bass.
And maybe, I have to optimized the system with the XLR and LS cables, too get the final percents of warmth in it.