To be fair Treo are like 3x the best model 2
but the basic Vandersteen design tenets are alive and consistent thru the line:
first order filters for time / phase accuracy
minimum baffle
easy load - no bizarre phase angle or impedence
drivers are highly pistonic
no ringing in the audible range of the driver / filter
time aligned
cabinet resonance well controlled
gets better as you go up the line
but the basic Vandersteen design tenets are alive and consistent thru the line:
first order filters for time / phase accuracy
minimum baffle
easy load - no bizarre phase angle or impedence
drivers are highly pistonic
no ringing in the audible range of the driver / filter
time aligned
cabinet resonance well controlled
gets better as you go up the line