Having owned the DAVE/Blu2, I doubt it would be "thicker" than what you have. It has many strengths - forensic detail being one of them - but it is quite lean sounding and somewhat thin. Claims by Chord fanboys should be treated with scepticism, particularly when you're spending this much money.
I haven't heard the Bartok so don't know how it compares.
I haven't heard the Bartok so don't know how it compares.