Have been in contact with them and sent them the add'l following q's:
Hi Pendulumic team,
Here are some additional q’s we have on head-fi:
1. 1. Do the M1 and S1 use the same drivers? Also is this the same driver as Sennheiser’s Momentum?
2. 2. Re: the 2 EQ levels on the M1, is there a third non-EQ’d mode so you can opt NOT to use the EQ or is the EQ on all the time?
3. 3. In terms of headphones that you have owned/tested, which would you say the S1 and M1 most closely resemble in sound profile?
4. 4. What is your exact return policy?
a. Is there a restocking fee for non-defective items?
b. Where would one need to ship headphones for repairs and who pays for shipping?
Also I noticed there was a brief review posted on their site (albeit it's a screenshot and no direct links); I can't find the actual review on ZDNet though (anybody with stronger google-fu care to try?):