Ahh, you came to the right place...
1) Arai Sucks (IMHO all standard disclaimers apply)
1A) A certain Moto rag said bashed Snell ratings in favor of DOT, Arai pulled ads
1B) Sh!tty Sales policy
1B.1) Arai wouldn't allow internet sales, so I had to go into my local Stealer - Yah know the one w/ the kids working who don't know sh1t under the premise I'd get better service.
1B.2) Even when I went to the local shop that did know sh1t, they didn't stock cheek pads or liners to get the custom fit which was one of the main reasons they pitched the non-internet experience.
1B.Addendum) I was fitted by Bruce Porter* at a MC show, and then bought off eBay anyway
1C) Mine busted, and I couldn't get parts... <aarrggghhh>
1C.1) Side cover busted off before I left for a 6700 mile trip, no prob, nabbed one off of old Helmet
1C.2) Base kit busted during 6700 mi trip, had to hold on helmet with Electrical tape, (it was a b!tch, it was 40 out, so I would fog up when stopped, and then if I didn't get it closed right I was freezing my face. It was stop, close helmet, try not to breath, get moving.
1C.3)Frickin Base kits were backordered!!!!
I couldn't get parts for my Arai Helmet for over two months, this is the main reason I'm going to look elsewhere, a ~$700 helmet, and you can't get a base kit... And this was from the best Cycle Shop in the Twin Cities (Midwest Cycle)
2) Buy the Helmet that fits you
3) Wear earplugs, the noise won't be an issue (don't tell me you don't wear Earplugs)
I recommend ER6's or if feeling rich - custom molded Earphones from Marylin Navina
4) Apples and Oranges
4A)The Corsair is a race helmet, targeted towards the win on Sunday sell on Monday crowd. Sold on the premise that every helmet is built to the same standard... So you're buying a race helmet
4B)The Multitec is designed for comfort and convenience, <insert Multitec sales pitch here>
5) When in doubt refer to #2
I have a Corsair, it's a nice well built helmet, All bitching aside they build a good product...
(You'll have to decide if it's worth the premium price tag [oops that should have been a bullet point above])
All noted... As you can read above Arai has done a lot of Stupid stuff as a Company...
Would I buy another Arai... Not today, I can't wait for the MC show, as I am going to find me a new flip face helmet...
*Bruce Porter - Sales Rep guy from Arai - If you've seen the video with the guy and the tape measure and the wallet that is him.
-bvw.