McTheatre II build thread - Page 11 - AVS Forum | Home Theater Discussions And Reviews
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post #301 of 352 Old 05-21-2019, 12:14 AM - Thread Starter
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It's Carpet Day!*

*technically, but I haven't slept yet, so is it really?

I was able to put in about an hour after work. I installed brackets on LCR and got them screwed into the wall studs, then rolled the rack out of the closet and started cleaning up misc stuff (old equipment, etc.) from the closet nook. Here are the LCR mounted:



In a wonderful scheduling coincidence, I had to referee 3 hockey games this evening, which I totally would not have scheduled the day before Carpet Day!*, but that's the way it worked out. I finished clearing out the closet after getting home at 12:30am, rather than leaving it for the morning. (Side note: I wouldn't sleep well knowing I'd left a surprise like that for myself in the morning anyway... feels much better having it done.)

The LCR are mostly caulked in. Ran out partway through - more caulk has been ordered.







And here's the room as ready as it'll ever be for carpet. Rack can't leave the room easily with all the gear in it - carpet guys say they can work around it. I've disconnected all the AV - only things remaining are 3 power cords and some ethernet cables (from the patch panel in the closet to the switch at top of rack). If the carpet guys need the rack to move further, I can disconnect everything.





I believe my next round of pictures will look significantly different.
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post #302 of 352 Old 05-21-2019, 09:58 AM - Thread Starter
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In progress pics - actually they have finished with the main room and we just pulled the rack out of the closet so they can finish in there. They left a flap to lay down into the closet, which we wheeled the rack over and clear of.



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post #303 of 352 Old 05-21-2019, 10:15 AM
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Really love following along in another smaller room. Was starting to feel I might be crazy for my setup that is being built. I have a 11x16 room and doing 2 rows as well with a 100" screen. Front rows will be a little close as well, but I will need the seating as well. Glad to see this setup and how clean it looks. I will be going for something very similar. It will be done around the time we move in after June 24th.
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post #304 of 352 Old 05-21-2019, 11:36 AM - Thread Starter
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Originally Posted by russdornisch View Post
Really love following along in another smaller room. Was starting to feel I might be crazy for my setup that is being built. I have a 11x16 room and doing 2 rows as well with a 100" screen. Front rows will be a little close as well, but I will need the seating as well. Glad to see this setup and how clean it looks. I will be going for something very similar. It will be done around the time we move in after June 24th.
Nice, that is pretty similar in size to my room - started out 13'8" x 10'6" and will reduce about 4" per wall for false walls and treatments.

I think this size room could yield a 2-3 seat theater with minimal compromises... with 2 rows there are a lot of factors to balance but it can be done. Do you have a build thread going?

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post #305 of 352 Old 05-21-2019, 11:47 AM - Thread Starter
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A few more gratuitous pics of the carpetage! (Taken with all lighting on 100%)







Here's the seam to the existing carpet outside the room - at the mid-line of the door slab so that the transition is less noticeable on either side of the closed door.




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post #306 of 352 Old 05-21-2019, 12:41 PM
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Originally Posted by James92TSi View Post
Nice, that is pretty similar in size to my room - started out 13'8" x 10'6" and will reduce about 4" per wall for false walls and treatments.

I think this size room could yield a 2-3 seat theater with minimal compromises... with 2 rows there are a lot of factors to balance but it can be done. Do you have a build thread going?
Yes it is the Montana Build thread. Won't be too many updates as I am still living in Colorado and it is being built with the help of the builder and home theater specialist I know in town. They are going to try and get me some updated photos here and there, but I may not have anymore actual photo updates till I head into town on June 16th.

https://www.avsforum.com/forum/19-de...ter-build.html
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post #307 of 352 Old 05-23-2019, 11:23 PM - Thread Starter
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Minor "during the work week" update.... just so I don't feel like a total POS for not doing anything theater-related. Tube o' acoustic caulk arrived, so I finished sealing the gap around the left speaker.



I also caulked some gaps in the equipment closet door rough opening, as it was allowing unconditioned attic air into the room. Those gaps will be covered later during finishing, but I wanted it sealed sooner.

Then I installed the outlet in the front of the riser - 3 minutes of work, but it was a thing that needed doing...



Separately, I've given some thought to the order of operations for wall finish work vs. bringing the seats back into the room so things can be "operational" once the screen is built. I think I have an approach that will keep me from having to move the seats in & out of the room excessively. Basically, build out the lower 1/3 frames in areas that would be blocked by seats, then bring the seats back in.

The middle 1/3 and top 1/3 frames should be easy to access just by removing seatbacks, and in that way I'd avoid having to move the heavy part of the chairs around just to be able to nibble away at finish work when time allows. I've seen enough fabric frame build threads to decide it's pretty unlikely that I'd build all of the frames at once... seems more likely that I'd build, wrap, and place a few at a time when possible. Eat the elephant one bite at a time, and all that.

It seemed legit in my head anyway...
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post #308 of 352 Old 05-23-2019, 11:45 PM
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not going to lie...I might steal your idea for the attic access, very clever. Love the build, great use of space
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post #309 of 352 Old 05-24-2019, 12:18 PM
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I love the smell of new carpet in the morning....

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post #310 of 352 Old 05-26-2019, 07:25 AM
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Carpet looks great and overall theater is looking awesome. I’m sure the progress feels amazing! I noticed a little while back that it looked like you had used a round over bit on your riser plywood overhang, but couldn’t see clearly if that was the case from your pictures. The carpet wrap around your riser step turned out great in the photos. Can you share exactly how you did that overhang on the riser edge before carpeting?


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post #311 of 352 Old 05-27-2019, 05:50 PM - Thread Starter
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not going to lie...I might steal your idea for the attic access, very clever. Love the build, great use of space
Feel free! That's part of the charm of this place - seeing ideas in other builds that could be useful for your own. I've borrowed several ideas from a few other builds on here.

An attic door tip I don't think I mentioned previously - I used a digital angle finder (https://www.harborfreight.com/Digita...uge-63615.html) to measure the angle that the attic door opens to, so that I could draw the door's range of motion in Sketchup and figure out how long the small trap door needed to be to create a clear opening. See sketches below.

One thing I missed is, these drawings have a 3" or 4" tall angled crown moulding (representing a store-bought moulding), and later on I decided to make my own 6" crown moulding (inspired by Bacon Race) that goes straight up and down instead. There is a slight interference which I'll need to make a relief cut to resolve.






Here you might spot the interference - attic door is slighly pushing the trap door open because the front of the attic door crown rubs on the back of the trap door crown. I'll make a relief cut on the top-rear edge of the trap door crown to resolve that situation..

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post #312 of 352 Old 05-27-2019, 06:11 PM - Thread Starter
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I love the smell of new carpet in the morning....
Room still smells like it... And now I have to be super careful working in there. Fortunately, shouldn't be much messy work going on from here!

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Carpet looks great and overall theater is looking awesome. I’m sure the progress feels amazing! I noticed a little while back that it looked like you had used a round over bit on your riser plywood overhang, but couldn’t see clearly if that was the case from your pictures. The carpet wrap around your riser step turned out great in the photos. Can you share exactly how you did that overhang on the riser edge before carpeting?
Yes, the guys did a great job wrapping the riser, and it feels/looks amazing to have another finished surface.

I don't think I covered how I did the riser lip, but yes I used a roundover bit. With the carpet wrapping over the edge, a sharp edge would show through and I imagine the carpet would wear out extremely quickly.

My riser decking is 2 layers of 1/2" OSB with roofing felt between. At the lip, there is a strip added on the bottom to make it 3 layers thick. I glued and brad nailed that strip to the underside of the bottom layer first, and put the roundover on it (upside down, in the shop). Then flipped it right side up, stacked the top layer above, lined it up and clamped in place, and added the roundover to the top layer.
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post #313 of 352 Old 05-27-2019, 08:53 PM
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thanks for the tips! hopefully i will have my build thread up soon even though i am fairly far into the build now. better late than never i suppose
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Room still smells like it... And now I have to be super careful working in there. Fortunately, shouldn't be much messy work going on from here!


Yes, the guys did a great job wrapping the riser, and it feels/looks amazing to have another finished surface.

I don't think I covered how I did the riser lip, but yes I used a roundover bit. With the carpet wrapping over the edge, a sharp edge would show through and I imagine the carpet would wear out extremely quickly.

My riser decking is 2 layers of 1/2" OSB with roofing felt between. At the lip, there is a strip added on the bottom to make it 3 layers thick. I glued and brad nailed that strip to the underside of the bottom layer first, and put the roundover on it (upside down, in the shop). Then flipped it right side up, stacked the top layer above, lined it up and clamped in place, and added the roundover to the top layer.

Thanks for the detail. I’m doing two 3/4” layers so will be the same thickness. I’m overhanging the lip by an inch. I have a 1/4” round over bit, trying to decide if I should pick up a 3/8” bit. Hope mine turns out as good as yours looks!


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post #315 of 352 Old 05-28-2019, 08:34 AM - Thread Starter
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Thanks for the detail. I’m doing two 3/4” layers so will be the same thickness. I’m overhanging the lip by an inch. I have a 1/4” round over bit, trying to decide if I should pick up a 3/8” bit. Hope mine turns out as good as yours looks!
I'd go 1/2" minimum. Can't have too many router bits!

The overhang on mine is 2" - which is a bit deep for a step but I am hiding LED accent lighting underneath it and wanted the lip to better hide the LEDs from direct view.
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post #316 of 352 Old 05-28-2019, 10:01 AM
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Thanks for the detail. I’m doing two 3/4” layers so will be the same thickness. I’m overhanging the lip by an inch. I have a 1/4” round over bit, trying to decide if I should pick up a 3/8” bit. Hope mine turns out as good as yours looks!


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I'm new to the home theater game but have been a woodworker for many years. I would get a round over bit the size of the material. For instance 3/4" material I would use a 3/4" round over bit 1/2" a 1/2" bit etc. You can raise the bit, in the router, if needed but if you're trying to get a half circle lip this will provide what you are after.

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post #317 of 352 Old 05-28-2019, 11:26 AM - Thread Starter
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I'm new to the home theater game but have been a woodworker for many years. I would get a round over bit the size of the material. For instance 3/4" material I would use a 3/4" round over bit 1/2" a 1/2" bit etc. You can raise the bit, in the router, if needed but if you're trying to get a half circle lip this will provide what you are after.
Thinking through it again, I'm pretty sure I did a 1/2" roundover on my riser lip, after researching and finding out what was normally recommended for a stair tread that would be receiving carpet. A lot of stair treads are 3/4 thick with a 1" bullnose (1/2" radius). I have 3 layers of 1/2" at the lip, so the middle layer isn't rounded at all. Not exactly a half-circle profile but you can see the results in the carpet pics.

Another option is to leave the flat edge on the riser decking and attach a prefab bullnose trim later. That would not fly with my DIY spirit but it's an option.
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post #318 of 352 Old 05-28-2019, 12:56 PM
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Thanks for all the advice, I think I’m going to go with a 5/8” round over bit. Wish I was going to be carpeting soon, but will still be a ways out before I can share my results.


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post #319 of 352 Old 05-30-2019, 11:50 PM - Thread Starter
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Minor stuff here and there during the week....

Columns are back in the room - well 5 out of 6 anyway. I'm leaving SL-2 (at the outside corner of the aisle and entry nook) out for now until the seats go back in, so there's more room to maneuver.



I also turned power off for a few minutes, removed the existing outlet at the back-right corner of the room, and made the connections for the riser outlet (for first row seats) and column outlet (for LED power supply).







I should be able to start on the screen frame build this weekend.
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post #320 of 352 Old 05-31-2019, 06:50 AM
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Minor stuff here and there during the week....

Columns are back in the room - well 5 out of 6 anyway. I'm leaving SL-2 (at the outside corner of the aisle and entry nook) out for now until the seats go back in, so there's more room to maneuver.



I should be able to start on the screen frame build this weekend.
If there ever was a perfect carpet design, that is it. It looks awesome!
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post #321 of 352 Old 06-01-2019, 09:24 AM - Thread Starter
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If there ever was a perfect carpet design, that is it. It looks awesome!
Thanks! I can't even remember how I found it online - but I'm glad I did, and that Shaw is setup to send samples to end-users like me. Once I found the right dealer/installer to work with, it was painless and I love the way it turned out.
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post #322 of 352 Old 06-01-2019, 08:07 PM - Thread Starter
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I started on the screen frame build today. First, I made a cut list based on the sketchup model, and got all of the frame pieces cut to length from 12ft Poplar 1x3s, with a 45 ripped on the French cleats. Then I setup the laser level and brought the French cleats into the room.



I set the laser at 3/4" above the bottom edge of the AVS Official Blue Tape Screen Outline™. I'm building the screen frame 3/4" (one board-thickness) larger than the image all around, and the border will overlap by that 3/4" to bring the visible screen to size.



Here the French cleats are screwed to the wall studs, so that the upper cleats split the laser line. This will be the top edge of the screen frame.



More to come... need to get busy with the pocket hole jig and start putting these parts together.
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post #323 of 352 Old 06-02-2019, 07:31 PM - Thread Starter
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It's most definitely summer in Houston again.... 95 degrees today. Despite that, the screen frame is now a thing.

After drilling pocket holes at the ends of all the vertical pieces, things went together pretty quickly. Here I'm working on the end piece at right, using a couple stop blocks to make positioning easier. All of the joints on the frame are glued and Kregged, except the French cleats and lower mounting tabs which were glued and shot with the brad gun.





Close-up of the French cleat situation. An internet once told me not to rip French cleats to a sharp point, so they seat better. The 45s are supposed to seat against each other - if there's debris, the point could bottom out on that and not allow proper seating.



First test fit in the room. I missed something with the placement of the left speaker - it interfered with the left side of the frame and ended up offsetting it about 3/4" to the left. You can see that I'm off a bit laterally from the blue tape marks. To deal with that, I added another vertical board to the right side of the frame (face to face, glued and brad nailed), increasing the width by 3/4" so the image can be properly centered. I'll hide this little error with the 2-1/2" border later on..



Brought the frame back outside, added the extra vertical to the right side, and cut a 1/2" roundover on the inside edge of the image opening. A sharp inside edge might show through the stretched fabric. I also sanded the entire frame with 80 and 150 on the DA - with extra attention paid to the right side to make sure that "extra" board won't telegraph through.



Back inside after the roundover and sanding. Instead of French cleats for the bottom, I added a couple tabs which are drilled and screwed to the stud, below the frame. More secure and less work.



Top edge still tickling the laser line.



LCR cables connected - I'll add some tie-downs to route these. I also traced the location of all the screen frame elements on the wall behind it, so that when it comes time to treat the front wall I'll know where to avoid placing treatments.



Up next - cleanup of the few tools I've brought into the room, a thorough vacuuming, and time to stretch some spandex onto the frame!

In other news, accessories4less finally dropped the price back down on the Elite SC-LX901 (been watching their prices go all over the place for what seems like a year). It went back down to $1399 last week, and hit $1299 yesterday - which is what I was waiting for, so I pulled the trigger. I'm reasonably close enough to having the room operational that I can swap it into the rack and make sure it runs.

It's a refurb with a 1-year warranty, and I get an additional year of coverage via credit card benefits.

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Looks like someone in class was paying attention to @MississippiMan
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post #325 of 352 Old 06-03-2019, 08:46 AM
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"It's most definitely summer in Houston again.... 95 degrees today."

I started sweating when I read that! I grew up in San Antonio and that is the one thing I don't miss - the heat and humidity of summer ( which doesn't even officially begin for ~3 more weeks)!

Your theater is looking great btw!
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post #326 of 352 Old 06-03-2019, 03:22 PM - Thread Starter
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Looks like someone in class was paying attention to @MississippiMan
Indeed.... @bluer101 preached the gospel of the spandex screen and caused me to save ~$1300 vs. my initial plan of installing a prefab Seymour UF screen. Not the first time I've heeded the advice of yonder @MississippiMan - my old room had a painted screen using MM DIY screen magic of its day. Worst-case, if the spandex doesn't work out, I can get a DIY cut of UF material and stretch it onto this frame. But something tells me the spandex will be just fine.

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"It's most definitely summer in Houston again.... 95 degrees today."

I started sweating when I read that! I grew up in San Antonio and that is the one thing I don't miss - the heat and humidity of summer ( which doesn't even officially begin for ~3 more weeks)!

Your theater is looking great btw!
Yup, the heat is once again ratcheted up to to full-on insanity. I was lucky that my hockey game was cancelled last night - doubt I would have been too useful stopping pucks given how worn-out I was from working in the heat. Thanks for the compliment - it is reaching that rewarding phase where finished surfaces start popping up left and right.... Gotta keep moving toward the big payoff!
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post #327 of 352 Old 06-04-2019, 05:16 AM
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Originally Posted by James92TSi View Post
Indeed.... @bluer101 preached the gospel of the spandex screen and caused me to save ~$1300 vs. my initial plan of installing a prefab Seymour UF screen. Not the first time I've heeded the advice of yonder @MississippiMan - my old room had a painted screen using MM DIY screen magic of its day. Worst-case, if the spandex doesn't work out, I can get a DIY cut of UF material and stretch it onto this frame. But something tells me the spandex will be just fine.
Yours is one of the few screens that follows his frame construction guidelines. Looking forward to the result - it will be awesome!
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post #328 of 352 Old 06-04-2019, 06:07 PM - Thread Starter
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I picked this up today - had to call around to various HVAC supply houses to find it. Normally they only deal with HVAC companies but I have a friend who lets me name-drop his company to get around that if I need parts or whatever (other than restricted stuff which I have no desire to buy). Comes in handy from time to time.



Cost was a little higher than some folks have scored on the forums - $288 out the door for a 1" x 47.5" x 100' roll - but it's a done deal and cheaper than getting it shipped in from anywhere. Duct liner does not seem to be a popular material here.

So now I have 1" Linacoustic and 1" polyester batting on hand for wall treatments.
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post #329 of 352 Old 06-04-2019, 10:01 PM - Thread Starter
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9.2.2 vs. 9.2.4... ?

A random thought topic for tonight -

Now that the new AVR is on its way, bringing Atmos into play from day one rather than as a future upgrade, I've been thinking over possibly adding a second pair of Atmos speakers to bring it to 9.2.4 (well 7 distinct bed-level signals over 9 bed-level speakers... call it what you want) - as the SC-LX901 is an 11.2-ch receiver.

The joist spacing is right to be able to put a top-front pair in a position that is symmetrical to the existing ceiling speakers, and would be just about right for 4 overheads relative to the front row. Here's a visual... existing ceiling speakers are blue, and the pair I'm considering adding up front are red:



My original thinking behind going with only the blue pair as top-middle was that there's no way to place 4 overheads or heights that would encompass both rows, because the back row is so far back in the room. But the single (blue) pair as top-middle would be pretty close to spec for a top-middle pair relative to both rows.

In researching this, it seems the Atmos effect works a lot better with 4 channels vs 2.

The more I look at my room, the more I think back row Atmos will be compromised no matter what, so I might as well make it all it can be for the front row.

It would cost me $80 for a second pair of Micca M8-C in-ceilings, and a little time to spray them black and install. A drop in the bucket.

I'd have to go to extraordinary lengths to contain the dust at this point, making a change like this after carpet. But it's still doable for now. Once the screen goes in, the window is closed.

Any thoughts from the AVSers following the build on 9.2.2 vs 9.2.4? Am I nuts for considering it at this point?

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post #330 of 352 Old 06-05-2019, 06:29 AM
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Are you nuts? No way! I mean at that low of a cost there is no reason to do it. For me on my build the cost was higher because it would need me to also replace the receiver to be able to get the extra 2, so I had the installer still wire for the other 2 for down the road. He recommended the front ones be my current and gave the option for the rear later on. So I say absolutely go for it now while you can. Then you can just enjoy it rather than ask what if.
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