Integrated brand choice -- Simaudio, Hegel or Mark Levinson?

Thanks all.
Selling my Bricasti M28 mono's in an attempt to simply and reduce my overall investment in the hobby (other priorities abound).
The more I thought about it last night, the more I reduced my wants to something that doesn't add color (IMO, that's what the speakers are for) but has sufficient power to not be stressed by a wide variety of music.
As much as I'd love to do in home, I'm not sure that's going to happen with all my choices.  As such, your opinions are helpful and appreciated.

Agree with a few other on here regarding the Luxman. I bought my first Luxman integrated amp earlier this year and its by far the best amp I've ever owned. You should definitely consider a 507UXii.

Agree with the others about the Luxman 
check them out. 

I would agree with bluorion, the 507UXii sounded beautiful when I auditioned it recently.  Smooth, powerful, and intoxicating.  It was a very hard decision when I went with the Hegel 390 instead, but I knew I would be super happy with either.

I have a Simaudio 680D Stream Dac hooked up to a Anthem-Str Integrated amp with Focal Aria 936 speakers. I know the the Simaudio cost way more than the other parts of the system but I listen to streamed music mainly. I plan on up dating the speakers at some point and maybe amp but it really sounds amazing. The source is very important too.