The Larch Theater (a not-a-19.6-system) - Page 10 - AVS Forum
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post #271 of 482 Old 10-17-2013, 09:18 PM - Thread Starter
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Yeah, it is. Almost have all the DW "in store" as well too. The first two rows are up apart from the end ones that has to be cut, it was getting a bit too dark to cut them.

Y'know... when I was standing in the garden on the cutting table and looked up at the full moon, the original meaning of 'lunatic' felt quite close. biggrin.gif

No splatter and the carpet knives make clean cuts albeit deep. But it looked ok when I changed band-aid, so I expect to make a full recovery. wink.gif

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post #272 of 482 Old 10-17-2013, 11:33 PM - Thread Starter
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Asked the shop where I buy the caulk how many cartons of it I needed to buy to get discount on them, and I got a little on the fly, but more so, if I came back with all the receipts they could works something out for future purchases.

I'm up to 132 tubes now (smaller european size), so that's 145 pounds of caulk that's gone into the project thus far. Guessing it will reach 225-250 somewhere before done...

So, a tip for everyone reading and who haven't begun a build... money keeps adding up in areas you might not consider to cost very much...

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post #273 of 482 Old 10-18-2013, 11:33 AM
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Don't I know it! I'm going to spend more for all the sand under my subs than I am for each (not all) sub. It's looking to be more than $500 worth of sand!
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post #274 of 482 Old 10-18-2013, 11:42 AM - Thread Starter
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Well, I'm skipping the sand as my soft feet will accomplish the same or more... I was considering it just to say I had it, but I'm not going to.

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post #275 of 482 Old 10-18-2013, 12:37 PM - Thread Starter
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Have completed the floor up front and caulked it. Also completed the ceiling 2nd layer. Can't move speakers back until caulk has dried though.

Post #1000...yee-haa! biggrin.gif

Celebrating with one of the worlds best beers - Amager brewers, Sinner series: Pride. 98 points on ratebeer.com. Don't drink beer that often, but I've hade few carbs enough today to indulge me, I think. Doubt you'll be able to get it, but it's one of the two best Imperial Stouts I've had the fortune to get to try.
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post #276 of 482 Old 10-18-2013, 09:43 PM
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Carpet knife!!!! eek.gif You are asking for it! Get an Olfa knife. Like this http://www.olfa.com/UtilityKnivesDetail.aspx?C=8&Id=8 You only have 5-8 mm (less than the segment score line) of the blade out and you snap off a segment to get to a fresh, very sharp edge. (Hold your finger on the side of the blade on a flat surface and tilt the handle up to snap the blade. Open side down. The finger on the blade stops the broken-off piece from flying!)

That's a lot of caulk! They don't have the bigger tubes? Or get a bucket loaded into sausages or a self loading gun? Anything to cut the cost. Stock options?

Cheers!

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post #277 of 482 Old 10-18-2013, 10:20 PM - Thread Starter
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Well, those of that kind that I've tried tend to break. Plus that my trusted Stanley fits my hand better.

There are sausages, but they would weigh 3-4times more, I think half a kilo is about enough to use one-handed.

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post #278 of 482 Old 10-19-2013, 11:55 AM
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Quote:
Originally Posted by HopefulFred View Post

Don't I know it! I'm going to spend more for all the sand under my subs than I am for each (not all) sub. It's looking to be more than $500 worth of sand!


Holy C$@&P!!!

Did you bring the Sahara with you?
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post #279 of 482 Old 10-19-2013, 01:32 PM - Thread Starter
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Holy C$@&P!!!

Did you bring the Sahara with you?

Don't think that was overdoing it. I was planning one half the height of the back riser and not very wide and that would have cost me $200, so a lager room and a higer stage, that seems quite resaonable for washed "playground" sandbags.

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post #280 of 482 Old 10-19-2013, 01:40 PM
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Sand is running just short of $4/bag with tax. I'm filling a stage and two portions of my riser so as to provide sand in all four corners. The first section of riser is taking about 33 bags (not sure yet). The other riser portion will be the same, and the stage will be a fair but bigger (not quite double).
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post #281 of 482 Old 10-19-2013, 01:46 PM - Thread Starter
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20kg bag ~40 pounds costs $6 here. I believe my volume calculations to be correct.

If I were you I'd reconsider about the riser and use it as a bass trap instead....

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post #282 of 482 Old 10-19-2013, 01:53 PM
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I still have one large central riser cavity that could be converted if needed, but with subs and a miniDSP I hope I don't need to.
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post #283 of 482 Old 10-19-2013, 02:52 PM - Thread Starter
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DSP can never do what acoustic treatments do, you shouldn't substitute. Do all you can with treatments first, then DSP if it's still a problem.

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post #284 of 482 Old 10-19-2013, 03:02 PM
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I agree with that. smile.gif

Placement first, treatment second, and EQ third. Two details, however: the miniDSP will primarily function to adjust delay and phase as an aid to position tweaking, managing modal issues; and EQ has been shown to have positive effects on modal ringing. (I'm forgetting the term used to describe the direct relationship between them. )
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post #285 of 482 Old 10-20-2013, 06:32 AM
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Check out the price of "brick sand" by the cubic meter/yard from a building supply company. The sand is washed as it goes into mortar for brick laying. It should be the same as playground /sand box sand, without the fancy name or packaging. Here, $500 would get about 10 yards delivered.

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post #286 of 482 Old 10-21-2013, 02:01 AM - Thread Starter
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Was away from home large portion of the weekend, so not very much to report. I have painted the parts of the front wall that will be visible and put up the end stops for the dampening walls... well three out of four - I cut one of them wrong.... I cut it at the 2 meter mark, not the 2,27 I should have...

Also put an inner 'frame' in the door frame to be able to add another seal and gave it a first coat of paint.

Gave most of the "stage" a dab of paint as well per suggestion from Mick Jagger. biggrin.gif

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post #287 of 482 Old 10-24-2013, 12:36 AM - Thread Starter
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Have caught up with what I planned for had I been home last weekend. Getting closer to planning how to get the insulation for the dampening walls up better than last time. That's a little benefit of getting to do it another time - can adjust those things that didn't come out all that well in iteration one. Going with more solid pillars for the screen and not round this time, so the reflections will be directed rather than always having one as per the round ones. (Diffraction you can't escape anyway...)

avs41.jpg

Done everything I can on the door, it's had some effect, now it's at the same level as the original walls surrounding it. Will need a double door later as already specified, but it's definitely improved. ( I'm actually wondering if it's not dampening more towards the outside than it is from the outside and in, if that's technically possible, due to the difference in surface material... the sound hitting the door from the outside would vibrate the door and the soft material will move with those... but the sound hitting the more flexible inner surface, might it not possibly deform that material as well as trying to move the door? )

Had my fronts hooked up and enjoyed a few tracks of music, including Stairway to Heaven at an average dB in the seat of just above 90dB (both A & C, fast) and I could actually imagine increasing the volume even more.... bloody good speakers these! Will be nice to try that again in a while with the subs in, drum kick will benefit a bit. tongue.gif

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post #288 of 482 Old 10-26-2013, 08:51 AM - Thread Starter
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Besides some painting, I've gone at dampening the ceiling right above the speakers:

70mm (3") rockwool:
avs42.jpg

Black felt:
avs43.jpg

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post #289 of 482 Old 10-29-2013, 02:15 AM - Thread Starter
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The storm Simone passed last night (St Jude it was called in the UK) and took off parts of our roof, so my analytic thinking will be put to use figuring out how to get up that high safely to fix it and soon rather than planning next cinema steps.

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post #290 of 482 Old 10-29-2013, 05:37 AM
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post #291 of 482 Old 10-29-2013, 07:19 AM
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Sorry to hear that frown.gif
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post #292 of 482 Old 10-29-2013, 11:45 AM - Thread Starter
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Thanks guys. Rest assured I'll do my best to stay safe, I have no desire to fall. Nothing you can do against mother nature when she's upset. This is quite a bit less than the damage I had just a few months after moving in, though at that time my father was still young enough to climb so I didn't have to back then so now is my time to grow up in this respect as well. Should have build a lower house further from the sea... cool.gif

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post #293 of 482 Old 10-31-2013, 07:50 AM - Thread Starter
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Roof fixed now. Half a dozen scrapes on fingers - those tiles are quite abrasive. My already before painful elbow is half killing me now and the adrenaline is probably oozing out my ears, but it's done. 8 myself, 3 by my Dad after he came over. Ladder was great, one would expect so from a $600 ladder... Pity no one rents them out. I guess they earn more on mechanical lifts...

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post #294 of 482 Old 10-31-2013, 09:07 AM
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Yikes! Sorry to hear about the damage, but glad to hear you got it fixed quick.
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post #295 of 482 Old 10-31-2013, 02:05 PM - Thread Starter
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Thanks. Next problem to fix - budget hole the ladder made...

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post #296 of 482 Old 10-31-2013, 06:23 PM
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You butter hope for more hurricanes so you can get the use of that puppy! biggrin.gif

The ladder punched a hole in tiles or the roof boards? Or a window?

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post #297 of 482 Old 10-31-2013, 06:27 PM
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The $600 ladder punched a hole in the budget. wink.gif
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post #298 of 482 Old 11-01-2013, 02:28 AM - Thread Starter
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Quote:
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The $600 ladder punched a hole in the budget. wink.gif

Precisely.

So fortunately I still have a small supply of build material for the cinema, or that would have ground to a halt. In "worst case", I'll make a few more diffusors which costs nothing as I still have a big bucket of wallpaper glue (at least I'm constantly moving one, so I hope it's not empty biggrin.gif )

Today I have pain close to everywhere, one probably tenses up more than needed when scared of heights so today just about every joint and muscles is complainingeven if it's just the tea mug that should be lifted rolleyes.gif

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post #299 of 482 Old 11-01-2013, 05:44 AM
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You should have budgeted for massages. smile.gif
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post #300 of 482 Old 11-01-2013, 06:56 AM - Thread Starter
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You should have budgeted for massages. smile.gif

Will get one at the office on the 19th, they've hired a guy to come to the office and it will be paid out of our personal heath/recreation fund. Should have picked the earlier date out of the two I know now. biggrin.gif

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