Slapped on the Rosewood's. No, more like carefully engineered them on: putting on these wooden cups remains a careful and tedious process. But I digress, I immediately noticed an improvement in timbre and imaging compared to the PH. Certainly a lot less resonating peaks in the frequency response present here. Sounds have a more accurate positioning compared to the PH, comparing it to the Teak or Zebra I still have to listen more down the line for me to conclude anything. Another thing that instantly stands out to me with the Rosewood, is the slightly raised lower sub-bass compared to the other cups. With other cups, I mean all the other cups I tried (Teak, Purpleheart, Zebra). I am quite sure the sub-bass of the Rosewood is the most pronounced (even if ever so slightly compared to the teak and Zebra) and has a bit more rumble in turn. I wouldn't go as far to say it has the best controlled sub-bass, but it certainly is tight and that in great volumes, very fun indeed. The kick is less pronounced as in comparison to the Teak and Zebra but is still tightly present. Best news here though is that the mids are very smooth: quite warm and very detailed indeed. However so far I prefer the Zebra's due to their fantastically textured and more neutral/slightly more forward upper mids. The highs remind me a lot of the Zebra's though: well extended, excellent timbre neither harsh nor surpressed. Perhaps the highs are a tad bit more harsh than the Zebra's. Soundstage is on the same level as the Zebra (which is more than fine), Teak still easily wins the soundstage game here. Curiously though, I haven't listened to the Rosewood's long enough to conclude anything yet. I am aware of how day to day sound impressions can vary just because of moods/state of mind or hydration levels or energy levels. Thus these are early impressions, I still need more time with them. But so far, the Rosewood's are an excellent alternative to the Zebra if you prefer a warmer and more sub-bass rich sound or especially if you prefer the undeniably mesmerising aesthetic pleasure the Rosewood coloured cups provide. More impressions coming soon.
PS. I ordered these beautifully braided balanced XLR cables from skyaudiocables (ebay) as my cat bit through the stock ones. These will probably pair better colour wise with the Rosewood's than they would with the Zebra's. I will not let this desire bias me in deciding which sounds better, and eventually the one that comes out on top will stay on these drivers. If you want to customise and order such a cable, you can find one here (while E-MU is not officially written these work 100%):
Custom Headphone Cable - 2 x 2.5mm HE-350 HE400i HE560 HE1000 HD700 Nighthawk https://www.ebay.com/itm/Custom-Headphone-Cable-2-x-2-5mm-HE-350-HE400i-