Another note is that these port size differences play into the sound as a whole and no to the bass at all, as the bass is huge in amount on both,
just presented differently.
To me the es10 reminds me of an ES7 / es700 taken even more alive and larger, and in every way better to the tenth exponential...
Edit: Ok exaggeration, more like 5x
While the ws99 is yet another version(!)..
like a shadow version of an es10, being not as forward, not as bright, seemingly more neutral, calmer and more balanced signature!
It is like the Es10 is superman full time, while the ws99 is like Clark Kent showing same potential(!) Only kicks *ss when called for!. Not a showoff!
Weird I know but maybe someone else can expand how the ws99 bass is not constant and only there when called upon.
Edit: Ok I can narrow this effect due to the lean clean deep speed of the bass .
Opposite of puffy(m100) or bloated (stock s500) bass..
So it actually seems as if when it comes to the bass, it is as if they should trade names!
These are only initial impressionss as I only have the es10 with me now, super honeymoon stage..
Bottom line is the es10 & ws99 are like brothers. .. Picture this alanalogy in "wrestling"..
It is liked "undertaker(es10) & cain(ws99).
I have yet to A/B the details, burn in and amp them so more to come..
Edit: EDIT: EDIT...
Ok I have to revise.. Did a quick A/B at home.
Bass is different. Slightly deeper with more focus & impactfull on ws99. In other words faster.
Deeper darker sound on ws99 while es10 livelier brighter .
Bass on my brand new es10 drivers is there and different as I am noticing continual bass change in control as it breaks in..
Switching to ws55 pads for now..