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Re: Full Metal Bracket with M22/VP150?
michaeld #409460 01/13/15 04:37 PM
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The fact that you are even considering first reflection points and are conscious of treating the back wall (presumably for echo/bass improvements) is a big leap in the right firection. You will be pleased. smile

From my experience, if you arent going to measure the room, what you are looking at doing would be the extent of what you should do. FRP and echoe treatments are "do no harm" measures. Corner bass traps are also universally a good idea.

Beyond that you really need to start looking at frequency vs decay time plots. Otherwise you can suck too much energy out of the room in a narrow band of sound. It gets pretty geeky down that road. wink

Re: Full Metal Bracket with M22/VP150?
michaeld #409478 01/14/15 03:10 AM
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Well, it is certainly good to hear that I'm heading down the correct path. Thanks! I know a lot of the basics but never got down into "the math of it."

It will be an interesting room, b/c most times there will be 3 people watching a movie, but when we have company, there could be 10+ people in there. Bodies soak up acoustical energy and change the way sound moves through a room. I don't have a lot of money to throw at "acoustics" hence my home made acoustic panels and heavy curtains at the back of the room.

Re: Full Metal Bracket with M22/VP150?
michaeld #409519 01/16/15 12:32 AM
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My mount failed. VP150 fell, tore my screen, a screen material I could not get anymore, and I ended up with an inferior screen as a replacement, and I am still using the vp150. Axiom claims the mount was over tightened, I beg to differ. I blamed the very cheap screw mount which cracked and failed. Thankfully no dogs, kids, or ME got injured as it fell late at night.

see thread
http://www.axiomaudio.com/boards/ubbthre...larg#Post319167

I was not a happy camper, and Axiom did not really give me the support I had hoped. Regardless, I have remained an Axiom loyal customer, but still....their mount failed. Cost me a new screen.

It has since been remounted, with a thicker screw mod I did, but now is below the screen.

Last edited by newf; 01/16/15 12:33 AM.

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Re: Full Metal Bracket with M22/VP150?
michaeld #409523 01/16/15 12:38 AM
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The basics laws of physics would make me want to build a shelf. Of course, I've always had a tendency to over-build everything.


::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
Re: Full Metal Bracket with M22/VP150?
michaeld #409524 01/16/15 12:40 AM
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Yikes Newf! Glad all was ok people wise.

Re: Full Metal Bracket with M22/VP150?
michaeld #409570 01/18/15 05:34 PM
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Wow, I read that whole thread, Newf and sorry to see what you went through. Luckily, no one got hurt, but your screen...that stinks!

I can see the logic of having the extra holes in the FMB to put screws through, and should I mount my VP150 with the FMB I'll probably do just that.

But I can also see the logic of re-engineering that piece of the mount to incorporate two bolt holes instead of one. Yes; that would mean redoing the CNC files for the whole axiom line to drill for two threaded nut inserts vs. one. But really, how much work is that? A few minutes? And it would add exactly 10 cents to the build cost of each speaker for the extra threaded insert.

My personal opinion is that the single mount point isn't the best-engineered of ideas for the VP150 and it's debatable for the M22s as well, though I will probably do it for the M22s, pending my seat-of-the-pants testing/impressions.

Re: Full Metal Bracket with M22/VP150?
michaeld #409578 01/18/15 07:06 PM
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My mount failed. VP150 fell, tore my screen, a screen material I could not get anymore, and I ended up with an inferior screen as a replacement, and I am still using the vp150. Axiom claims the mount was over tightened, I beg to differ. I blamed the very cheap screw mount which cracked and failed. Thankfully no dogs, kids, or ME got injured as it fell late at night.

see thread
http://www.axiomaudio.com/boards/ubbthre...larg#Post319167

I was not a happy camper, and Axiom did not really give me the support I had hoped. Regardless, I have remained an Axiom loyal customer, but still....their mount failed. Cost me a new screen.

It has since been remounted, with a thicker screw mod I did, but now is below the screen.


Holy crap, that is a lot of weight (22lbs) to hang off a cheesy little insert , which from your pictures looks like it should be inserted the other way so it bites into the wood. Anyone mounting a VP150 should pull out the front drivers and put a plate on the inside and use a nut and bolt. I am surprised Axiom didn't stand behind that since they claim that mount will work with a VP-150.

Last edited by Socketman; 01/18/15 07:08 PM.

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Re: Full Metal Bracket with M22/VP150?
michaeld #409633 01/19/15 05:10 PM
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Aside from the aforementioned opinions on the mount, i fail to see why ANY mount wouldn't have at least 2 points of contact for mounting. This greatly decreases the risk of a failure of a single point causing so much damage.

A decent non-shearing screw still only costs a few cents each.


"Those who preach the myths of audio are ignorant of truth."
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