***Working Man's DIY Dedicated Home Theater*** - Page 7

Yup I'm sure there is room for improvement with chunks over the 4"thick panels I'm using. However until I fully treat the room with the full complement of panels I really couldn't afford to burn as much OC703 as it takes to do "chunks." So far I only have two packs of OC703 applied to the room, probably need two more at least not including "super chunk" corners.

I've also got an idea for some deep bass traps as I don't think I'll be able to soak it all up broadband before over treating the room. Those are gonna be a design of my own which incorperates diffusion and deep bass trapping not absorption. No sneak peak on those yet they're still pen marks on a napkin.....

You down ETC yeah you know me!.......

I wondered if anyone would feel me! Woot!

I hear ya!

I have a spi real close and dont think they carry the Roxul....

Last pricing i got was $55 for 2"x2'x4'x6pcs of OC 703.....

I aint studying the fluffy pink and I aint drank localhost's koolaid on it being better than OC703...... Just sayin.

I reallllllllly like this guy...... Dude you rock!!!!

Without further adieu.....


Oh pooo I hate when the links don't work... here.

http://www.youtube.com/watch?v=RLRLhV9U0kQ

Here's some fodder for those who like graphs....

I've moved the few treatments I have around recently and added some Deco-fusersTM to the rear of my space. Since then I havent had time to re-EQ the subs and adjust phase levels etc. So here is what Audyssey gives me right out the box....



Here is after 3-bands of EQ:



Total FR



Waterfall:



Decay

Thanks RT!

This is what we find ourselves doing when our build fund gets low.....

Well that and the more i use this measurement stuff the more I learn.

Yeah its in REW too it generates for a measurement like the waterfall would. It can help you key in on areas of high sustain.

I determined the floor of the room using the spl function of REW. Just turn it on with projector amps etc running and see how many dbs your measuring with no content playing.

Mine runs high for a couple reasons: My PS3 fat is loud, i use 6 120mm pc cooling fans to cool the rack, and the previous owner of my EP4000 put a 12v fan in instead of 24v which causes it to spin twice as fast as it should which is louder! All this is 6-8ft to listening position.

If i look at waterfall below noise floor i might see the humm of the equipment as a ring simce its humming along at a specific frequency it would look exactly like a long sustained ring.

Preshate the interest boys!

No prob cuz im keeping time with your thread too and cant wait to add some o those deep bass traps since as you can tell i need in here......

Good idear, i need to replace that fan with the proper one but so many things to do!

PTAaron,

Thanks for the complement!

I use a cross spectrum EMM-6 its calibrated to 5hz and comes with its unique calibration file which you upload to REW.

My thread is sliw these days ive bought bedroom furniture and a secrional his year which put the theater on HOLD.

Thanks for the intereast and keep aboard!

No big projects right now, I'll be building a couple little doors for the attic accesses soon though. I finally got tired of having to switch on and off manually the EP4000 for my subs so PROJECT TIME!!!!


I've asked around about switching off pro gear with 12v triggers but most folks suggested switched outlet or outboard box. That is too bulky as my rack is already very crowded. So I came up with an internal solution for the EP4000. Basically I wired in a 12V relay after the main power switch and mounted a 1/8" jack to accept the 12v trigger on the back of the amp.

Bought supplies.

3.5mm jack and Relay and through hole board:




Removed this foam not real sure why its there..... Amp fan runs much quieter and slower with it out......



Shot of relay after switch with 12v trigger current coming in on the twisted blue white pair.




Nice finished look. The way it should have come from the factory.




The relay mod works well, I did have to adjust my trigger delay for the amp to keep away the dreaded thud when all the other gear powers up but that was a simple setting in the projector.

I'll never have to flip the amp switch again unless I want to and that is worth the time it took to disassemble the rack do the mod and put it back together.

Total cost... about $10 for the 1/8" jack, relay, and board. The rest I already had but it did take about 4hrs.....

Thank you kind sir!

How was/is the maker's fair? Was the danforth digitrolla entered?

*****tiptoes over to the "waffle wall theater build" to see whats up*****

Did a little work with subwoofage today.

Writeup later, but a few teaser pics to see if anyones paying attention!!!!

While my ears stop ringing......

Pop quiz what does an attic access point work great as?.........

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