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Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418134 03/26/16 05:52 AM
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So the wires are run, and the multiple layers of drywall mud have been placed, sanded, and smoothed out. Texture added, and paint applied. There will be just a tiny bit of touch-up paint on Saturday.

I also marked the 2 front M3s for where I need to drill the holes for the mounting bolts to attach the speakers to the Axiom Full Metal Brackets (FMBs). I plan on getting those drilled and mounted to the FMBs tomorrow as well.

With any luck, I will be putting the front 2 speakers up. I still need to make a "wedge" to slightly angle the rear 2 overheads just a little bit, but that shouldn't be too tough. Hopefully I will be able to make something quick, easy, and that can be hidden fairly easily as well.

We are going to be helping some relatives move into their house tomorrow as well, so I doubt that I will get any further than that.

What I have left after that is:

Clean the entire room from dust.
1) Put shelves back up.
2) Put equipment back on the shelves.
3) Clean up our game room that has been my temporary work area.
4) Put other M3s back on the walls.
5) Put acoustical panels back up.
6) Fix the damaged LED lighting (probably will take as long as the previous 5 items combined).
7) Install Anthem MRX-1120 receiver when it arrives from being replaced (ships from Canada on Monday).


Farewell - June 4, 2020
Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418136 03/26/16 06:03 AM
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Do those speakers have an electrical crossover?


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Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418137 03/26/16 06:09 AM
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The M3's? There is a crossover inside them. It is behind the bottom half of the tweeter. If you need it, I could remove a tweeter and take some close-up photos. Just let me know.


Farewell - June 4, 2020
Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418138 03/26/16 06:27 AM
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Thanks. I was just curious because a crossover wasn't obvious from the pics.


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Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418139 03/26/16 06:34 AM
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You can see part of it in the picture from before I masked things off for painting. Just the top part is visible in the picture.



Farewell - June 4, 2020
Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418140 03/26/16 06:41 AM
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I could be wrong but it appears the crossover and wiring has changed substantially since v2.


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Dedicated mid-woofers are over-rated
Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418141 03/26/16 06:44 AM
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I will take a closer picture tomorrow for comparison as these are the V4 speakers. It is 1:45am and I need to stop messing around online and go to bed. LOL


Farewell - June 4, 2020
Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418180 03/27/16 03:32 AM
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Here is the crossover on the M3s... Copyrighted 2010 on the board anyway.




I got a bit done today, even though I spent about 5 hours helping my cousin-in-law move... Ok, everything was unloaded, but I was mounting TVs, setting up their bedroom and their daughter's room, etc.

Anyway, here are today's updates... The good, and the bad...

First up, is a photo of me marking the back of two of the M3s for where the FMB will go. I basically put this dead senter from side-to-side, but a little off center from the normal top to bottom since I will be rotating the speakers 90 degrees and the center of gravity was a little closer to the center of the woofer obviously.



I drilled the holes, and put the bolts (with washers) through from the inside since I knew that the woofer sat REALLY close to the back of the inside of the M3 cabinet.
Then I attached the one end of the FMB.



Then we were gone for several hours...

When I got home, I then went into the theater and mounted the other half of the FMB with some really large toggle bolts.



Then it was time to put up one of the M3s at the "recommended" angle towards the listening area. Wow did these things stick down more than I imagined, but they were lined up exactly with where they were recommended for optimal Atmos/DTS:X and for having 2 rows of seats.



And with the front grill (Axiom logo moved to the long end)...



Then I started thinking... Hmmmm.... Those really do hang down pretty low. I wonder if they will be in the way of the projected image on the screen...



Yup. REALLY in the way.

Dang it... Now I need to relocate the FMBs, and move the speaker wire so that it stays behind the speakers (and not just the front 2, I had to move the back to speaker wires out as well). I ended up moving them 3.5" towards the outside, and then tested again, and I am now clearing the projector image by a solid half inch, however, I now am waiting for drywall mud to dry, and then my 2.5 day patch/texture/paint process to hide it.

I think that I will put a small heater in the room again tonight, and then get up a little early before we head out of town for Easter and do a light sanding, and a 2nd lighter layer of drywall mud so that tomorrow night I can hopefully wet sand, texture, and maybe even paint. Then the front speakers can go back up as I already remounted the FMBs.

Tonight, I also cut my wood blocks for the rear 2 speakers. These just needed a small, 15 degree angle to them, so I cut a piece of 2x4 to the correct angle, and pre-drilled for the toggle bolts already (with the heads of the bolts recessed into the block). I also painted the sides of these angled blocks, and tomorrow night, if there is time, I will lightly sand the top and bottom so that I am not putting uncured flat paint against more flat paint (cured on the ceiling, uncured on the speakers). Sure, there will be some slight cosmetic touch-ups on the speakers should the day come that we move out and take the speakers with us, but I would like to minimize it a bit.

The rear 2 speakers will have the wood blocks, as mentioned, toggle-bolted to the ceiling, and then using regular screws, I will screw the M3s to the wood blocks. All holes predrilled to prevent any splitting, to keep the M3's looking as nice as possible, and to control exactly where the speakers mount to keep them accurately lined up once the wood blocks are mounted in their measured and correct positions.

Until next time....


Farewell - June 4, 2020
Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418181 03/27/16 03:39 AM
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The cross-over topology looks the same to me between v3 and v4.


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Dedicated mid-woofers are over-rated
Re: Maybe I should start a v4.0 build thread somewhere
nickbuol #418182 03/27/16 03:57 AM
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Originally Posted By nickbuol
I got a bit done today, even though I spent about 5 hours helping my cousin-in-law move... Ok, everything was unloaded, but I was mounting TVs, setting up their bedroom and their daughter's room, etc.


Cousin-in-law? I feel like maybe I could convince you to come to Washington and help me with stuff. Nick, I don't know where you get your energy, but I'm thinking Starkiller Base would be eyeing you as a fuel source.

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