Thanx for the input for now. My amp is a NAD C370 200 watt at 4ohm. Peak power is much higher. Think juice enough.
The space of my attic which has a V shape roof guess 60 degrees is 13 x 22 feet compared with a normal room with strait wall my cubic meters are less. However my 1B is sounding amazing despite my lousy acoustics which i correct with room correction software creates a balanced sound which benefits the Vandies quite. The whole attic will be rebuild.
Attic:
[img]https://i.imgur.com/p0yINEm.jpg[/img]
Frequency response acoustic room:
I guess the character of both models is more ore less the same regarding imaging transparency the 2Ce will do it probably more effortless and will sound more controlled compared to the B1 if playing demanding music.
Can buy them for 650,- euro including original stands.