Average Reviews:
(More customer reviews)just be aware of the actual shape -- there is a large block of hollow plastic (some sort of acoustical chamber, no doubt) that extends beyond the diameter of the speakers; they are probably twice as long as the diameter, and 3 or so inches thick. There is an obvious acoustical reason for this, but if you have a small space where a conventional speaker might just squeeze in (if you are just looking at the speaker diameter), these won't.
What is very clever, however, is these are designed to be blind mounted -- so long as the space you want to mount them in has enough depth and radial clearance for the acoustical chamber, you can mount these in tough spots.
what I mean by this is: if you have a surface where you don't have good access to the rear, you can still put these in, so long as you can fish a speaker wire back there. I use an actual electrician's fish tape. On my boat, the gunwhales are a good example - I could never reach up under these with my hand, but I can fish a wire from there down into my bilge where the wiring chase is. You can cut a slightly larger hole than necessary for a behind mount (and a template is included), and instead mount these from the front side of the surface you want the speakers in.
The cone is polymerized, and these looked to me to be the best engineered for the marine environment of all the speakers I looked at. The acoustic box even has 6 or 7 drain holes engineered in (you only open one up, depending on the angle you mount them at), so the plan from the Bose engineers is for these to get wet. If you are a boater, you have to admire that line of thinking.
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Bose 131 Marine Speakers, flush-mounted speakers for boats - Arctic White
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