Axiom Home Page Forums General Discussion Home Theater HT in-progress

No problem ... PM me if you have more questions on it.

Most of the channel is back up. Somehow we must of lost a bunch of clips because we ran out. After searching for a while I just ordered more. If I find them some lucky person will get between 20 and 30 clips for the price of postage ...

So, while we wait for FedEx, the first layer of the front wall went up.
Here's a 360:

At that stage my room made a “boing” sound when we dropped tools. That was with all walls and ceiling insulated and two exterior walls with vapour barrier and ceiling boarded.

Curious if yours does this or not with vinyl on? Board two walls and let me know. BOING!

Great progress keep going!

What are you doing for the HVAC? I see a high return on the back wall and a lower supply in a equipment closet by the entry door. Is there a mini split AC unit going in as well?

No Boing but it gone from real dead to having a bit of an echo.

I thought of a Split until but couldn't figure out how to hang it without putting a big hole in the wall. I thought of getting a split floor unit but the HVAC guy wasn't thrilled with the idea. I ended up connecting to the house system for supply and just dumping the return in the hall. It may not work as the basement might want heat and the theater might want cooling. In that case I have a few options. 1) play games with the basement temp when in the theater ... i.e. switch between two thermostats (theater and rest of basement). Might just disconnect the theater and pull the supply from the hall. If I get real ambitious I might attempt to break out the theater into a third zone. We will see ... haven't got there yet.

I wonder if you could sandwich mlv between the two sheets of drywall as opposed to using green glue. It would be easier to hang if you could attach it to the second sheet of drywall on the ground.

Green Glue and MLV are two different things.

MLV sattempt to dissipate sound energy by making it move a mass. Good for the lower frequencies. High frequency will just be reflected back. Green glue on the other had is suppose to dissipates a wider range of frequencies by allowing the sheets of wall board to slide against viscous, never drying, green stuff creating heat.

Prototyped a wall mockup of the connector box. Rather do it now than find out 34 boxes later that there was a glitch in the plan. There is actually a lot of stuff which could be screw'ed up ... so I need to verify that

- at least 6 inches of wire fits in the box (to install the connectors easily)
- that the wire is strain relieved (don't what to break any acoustical seals).
- it protrudes no more then 0.25" so it would fit behind an on-wall speaker
- everything fits with-in the 1.25" space of a double layer of 5/8 wall board.
- it's acoustically sealed from the wall cavity
- the connector plate sits flush when with connectors installed & using 10 AWG wire
- connector plate needs to sit tight against the wall board

Note pic below is without the acoustic sealant



Took 2 prototypes to get it right.
Next step ... Mass production (at least for me) ...

Each run of 7 boxes takes 21.5 hours. The pict above is the third run. The upside is that I only need to keep an eye on it for the first 30 minutes as once the first layer is down it's usually good to go.

While that's going I'm in the process of cutting into the MLV and moving most the in-wall speaker wires ... I stupidly used the measurements from an older plan which had the MLP at 12.5' from the screen. It's supposed to be 11.5

Luckily MLV is very easy to patch with a bit of vinyl cement.

Thats pretty impressive! Great idea and design.

I think this might be officially the craziest intensity at building a home theatre i've seen yet.