Posted this in another thread but felt it might be relevant here;
Sennheiser contacted me and I reviewed the 1st generation MTW. The MTW have, IMO, always had the best sound quality of the upper end TW available. The signature has always checked my box. Enter the TW2, continued on in the tradition and delivered the goods on sound quality, loved the app and the fit.
Now the #3.
I have some thoughts and impressions. This won't be extensive. Sound quality is great, just slightly better than the TW2 when I can find the sweet spot with the seal. Controls are much more sensitive on the TW3. Price reduction is a major thumbs up!
I enjoyed the app updates I saw with TW2, very similar to the TW3, but now registration is required is you want to use all of the features, minor inconvenience, but not sure why? Also, I only and always utilized the "high end sound tuning slider", great tuning. it is non-existent with the TW3. I don't use eq ever, but for those folks that do 3-sliders is actually worthless.
I need to add I also owned the CX, which is closer in fit to the TW3, but I think it was a hair larger. My issue with the TW3 is the fit. After trying all iterations, I have removed the fins, I would put them back on if I was working out. The L ear tip is always my go to, for comparison with my IEMs I use LL Final E tips (when I choose Final tips). With the nozzle length and design of the shell I need to work to achieve a seal on the TW3. Deep insertion is impossible. If there was a LL if it would be fine. Please don't recommend Comply tips, I won't even bother as I have never had good luck with them and don't like what they do to the sound. I have pulled both of my organizers filled with tips, but the Spinfit CP360 and the Final negatively impact the sound IMO.
The reason seal is critical on the TW3, as on my in-ears is for sound quality, to achieve the best bass response. It is even more critical to achieve proper seal with these because it effects more than SQ. Since this is a shallow fit monitor, pushing them in too far to achieve seal will ultimately block microphones and will cause you to sound muffled to the person you are speaking to on the other end. Seal is also completely necessary for ANC. If anyone is struggling with fit, but wants to try to make them work, make sure the bass boost slider is on in the EQ tab. Bass creates a natural isolation to outside noise.
This is not to discourage anyone, just my findings. My brother, who I made a Senn loyalist, has them as well and absolutely loves them
My 2 cents.