Best Integrated, period.

There is DartZeel integrated on it's way, also improved VAC PHI beta is comming.
Regarding Vitus, UHF mag reviewer's new reference is Pass X600.5.
But for the lot of money there is Kondo's Ongaku integrated amp (it's my dream amp, no matter what many of you think).

You could order VAC Phoi BETA 300.1 and have stepped attenuators fitted in the factory. There are two switchable inputs on the back.

Fafaion If and when Spectral designs integrated amp on the base of 250 amp and 30SS preamp that could be a great integrated, you just need their one box player the 4000 and quest for electronics is over.