While I don't really care about the speakers, I am somewhat interested in the helmet itself. I like the idea of a modular helmet and I'm sure Shoei has done a great job with the design. Are you at all concerned about reduced safety compared to a full face? Also, is the wind noise worse than your HJC, or just different?
Thanks!
Dan
Of course, comparing one helmet to another one must define the baseline. As I stated in the OP, my baseline was my HJC FS10, previously my quietest helmet. There are several sources of objectionable noise:
1. Wind passing over/around the helmet, where the helmet aerodynamics produces the noise.
2. Wind noise generated by other parts of the bike as the bike blasts through the air.
3. Engine and road noise from your bike.
4. Noise from external sources, such as pirate/squid bikes, air-braking semis, that car next to you getting ready to throw a rod, etc.
Disclaimer: This is subjective. It's not completely reliable for me to objectively distinguish between the actual noise level being lower vs. it being changed in some way so that it seems to be lower.
1. Definite improvement. I can ride with the windshield lowered to higher speeds before the total noise becomes annoying. The contribution of direct noise generation is easily determined by raising the windshield just enough to where there is that sudden diminishing in the wind noise.
2. Somewhat better with the Sena speakers installed. It might be better yet if one does not have the Sena in the helmet, as there are a couple of foam pieces that get removed to make room for the speakers. I have not tested this.
3. Definitely better. Much more sealing around the ears and around the neck area. I have been able to determine a bit more reduction available by placing my hand underneath my chin, increasing damping coming up through that area.
4. No real opinion. Probably not much improvement. Built-in ANR would likely be required to further isolate this stuff.