The center point of the television is right between two studs, therefore no stud for mounting the center channel speaker. Will hefty toggle bolts fastening the bracket to the drywall be enough to secure the VP100 to the wall, or are the studs absolutely necessary? A 1/8" (small) toggle is rated to hold 50 lbs, but will the vibration of the speaker be a problem? Will the drywall itself fail?

I don't know enough about drywall to answer your question. I'm sure others with more experience will be able to do so.

But, should mounting between the studs prove to be unfeasible, one thing you might consider is mounting a nicely finished piece of wood between the two studs, firmly affixed, at each end, to the studs. Then you would have a secure platform to which the VP100 can be mounted. The VP100 itself would shield the wood, for the most part, from view.

Ajax,

Thanks for the suggestion. If securing the bracket to a stud is absolutely necessary, I'll probably cut away some drywall and install a header between the studs, then patch.

I'd REALLY like to avoid that labor intensive route, hence the question about toggle bolts.

i love toggle bolts and use them for everything. but in this situation i might worry because the toggle bolts are to close together that they may be putting to much pressure on a small area of sheetrock. i would cut the drywall and install a 2x4 then mount to that. because you are not only risking the speaker but also the tv if it falls. just my opinion also i should add i am lazy and i am always looking for the easy way out but in this situation i probably would not.
Jake

I'd add the bracket between the studs. That way if you ever upgrade to a 150 you'll be all set .

Snakeyes, you are a wise man (well, wise for a Giants fan). I hadn't considered the risk to the TV, this alone is motivation enough to get past my laziness and do it right.

Thanks to everyone for the input.

Off to get the saw and scrap 2x4 for the header...

You can also try a "plaque"-type mount...mounting a larger piece of wood that'll span 2 studs, and mounting the FMB through the "plaque". (you can paint the "plaque" the same color as the walls)

Or a shelf (hanging from the studs) and then hanging the FMB from the bottom of the shelf (to allow use of the entire shelf).

Or, as mentioned, cut out the drywall, insert a brace, put the drywall back, mud it, paint it.

But don't count on the drywall for support.

You can also try this. I have 2 unused sets if you're interested. Just PM me.

Btech

It might allow you to mount the arms on the studs. I wouldn't mount the VP150 on anything BUT studs. It's quite heavy for drywall anchors.