There's a lot of weight behind the bass drums here that I personally like. Timbre is spot on I think. Nothing sounds weird to me. Not sure what you mean by purity though.
But depending on preferences there may be a little too much weight in the low end on a track like the one you linked. But her vocals are still nice and forward and don't get lost in the mix.
But... the mx module though really balances it out, it takes some of the weight and emphasis off the low end and allows the vocals to shine through as the focus. So while it may not be preferred for me, I think the versatility there is quite nice.
Gonna try not to sound like a crazy fanboy... But, so far, I kinda love how these sound. They fit extremely well for me, love the versatility with the apex modules, and they really do look great. I know it's too soon to make a determination, but I'm pretty sure these are gonna be a keeper when it's time (soon) to pare down the collection.
Not quite as impressed with the silver cable though. It's nice, but it still has memory wire (though it's not bothering me too much so far), I just struggle to justify the high cost of cables and I would almost certainly never buy one at their asking price. Though it's miles ahead of the stock cable in terms of look/feel/ergonomics. I'm not gonna talk about sound because well I'm not a big believer in cables altering sound beyond impedance mismatches, either that or I just don't pick up on them.
I'll probably stop back in after I get some work done with a comparison to the trio, and as I get time, the Solaris 2020 and z1r. Also usual caveats apply that these are not burned in, whether whoever reads this believes in burn in or not.