mysticaldodo -- No, unfortunately. That's her only album I don't have yet. I want it bad.
On the 'unpredictable' bass of the HD595 -- I think we're simply not accustomed to the 'ideal', "flat" bass presentation. Think of nearly all 'amateur' speakers on the market, with their 'bass reflex' bass loading and resulting humps around 100 Hz...
Headphones look designed to replicate this behaviour we're all accustomed to, but a few exceptions survive... one of them being the HD595. IMO
And even the recordings in the first place may sometimes be meant to suit this generalised 'hearing custom'...
As regards the impact of the HD595's bass.
It doesn't match the impact of the HD650, granted. But then, what's satisfactory just depends on your own parameters.
To me, it's still quite impactful. So much so that I can happen to turn down the volume in fear of 'overloading' the drivers, even if the level was no more than normal... Paranoia
, but it may convey the idea.