I spent about an hour tuning and an hour listening. It’s been a really busy week so I haven’t played around since Sunday.
Sense of space is a bit larger. Tuning-wise I had to turn their levels down like 3db and cut a few eq bands across the passband. Attack/decay and dynamics are better. Details are better.
I attribute this to a higher sensitivity and a regular dome vs ring radiator.
Size wise, they’re a bit deeper than the r3004/6020-00, reminds me of the unicorn-status d2904/600000.
Not that the r3004 is a slouch in any way, the differences are subtle.