Bat VK-300se vs. Luxman 509u

I currently own a Bat VK-300se and like the unit very much. I have been toying with moving up the audio chain and would still like to stay with an integrated amp. Other equipment in my system are Meadowlark Blue Herons and for a source I have a Tri vista 21Dac and the Sony 5400ES.
In your opinion would the move from Bat to the Luxman be a sideways move or a move up?
Other amps I have been considering are the Luxman 590Aii or one or the top end Accuphase integrated units.

Thanks
Eric