Things to know before you try installing one of these...
HOW TO REMOVE THE INNER PARTS OF YOUR HELMET...
Lesson learned.
I installed an SMH10-11 (universal fitting) tonight. Took me most of a lopsided Atlanta Falcons game. Mostly testing the speaker placement prior to committing to Velcro pads (kit came with 3 -- you have one chance to **** up).
This is the Arai Signet-Q with the unit installed -- face shield removed:
View attachment 55029
Note the difference in this model -- the boom mic is NOT attached. All that remains is a vestigial boom mic nub. The actual boom mic comes on a wire with a Velcro pad to mount on the inside of the helmet:
View attachment 55030
After many tests, I Velcro'd the speakers just at the top and slightly behind my ears. If you're familiar with the helmet, the ears sit right in the recessed and cloth covered cheek pads. The curve inside the helmet limited my placement of the sticky Velcro pads. The fabric on the recessed part of the cheek pads wouldn't hold to the Velcro either. This will work for now:
View attachment 55031
Here's another shot of the placement. Ideally, the recessed area would be flat and accept the Velcro pad. I actually tried placing the speakers behind the cheek pads (which would've precluded the Velcro), but it was about a 50% volume reduction vs. the current placement:
View attachment 55032
Another view of the universal mount and the nub for the vestigial boom mic. The two wires are the left side for the left speaker and the mic. The wire going over the neck roll is routed to the right side:
View attachment 55033
This is a shot of the bud mic placement at the chin guard. This is one of the reasons I bought this model. I wanted to be able to use either, though I thought the boom mic was detachable from the outside. My only concern about this bud mic placement is the vent just above it. I tried the boom mic but it was basically touching my mouth when between it and the chin guard. I can try it later if I want:
View attachment 55034
I tested the audio the whole time picking out speaker placements. When I was all done, I tried the helmet sans face shield with ear plugs. Had my wife call while walking around outside. It was fine. Tried a podcast and GPS -- seemed loud enough. I didn't have to turn up the phone volume as much on the phone call as much as on the podcast and GPS. Siri seemed to take commands OK on iOS 7 -- available directly from the back "phone" button.
Anyway -- my 2 cents. I'll ride tomorrow and try the music or podcast and GPS.