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DIY Flat Panel Speaker Love

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  • Re: DIY Flat Panel Speaker Love

    Originally posted by Tin Ear View Post
    Well, you could use the excuse, I mean, defense that your sound is indeed unbiased.

    Klipsch didn't wear a BS! button for nothing. Heresy, they said, and a legend was born.

    One could go 3-way (ah, memories) with piezo, exciter, bmr - heck, even 4, what with sub being omni and all.

    -

    Make her something for Valentine's Day with some of those materials you have laying around and justifiable homicide will no longer be on her mind. ;)
    I could go more ways but more ways equals more money as well. lol

    My gal loves diamonds and gold.....My ingenuity is no where near Mcguyver's level where he can build a tank out of ordinary bubble gum wrapper LOL Plus my Alchemy is lacking greatly and not up to par with full metals. LOL
    Last edited by Unbiasedsound; 02-10-2016, 09:05 PM.

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    • Re: DIY Flat Panel Speaker Love

      Maybe the panels used in publicity, made with XPS or EPS and two faces of paper, many times stronger than XPS or EPS alone, are good radiators. Just an idea...

      Or maybe the honeycomb used in packing. Just another idea...

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      • Re: DIY Flat Panel Speaker Love

        Hi Rich
        I saw the article that you wrote on your Dml panel speakers for Parts Express. Great Job! Very well done and quite complete. I am sure, after people read this there will be a lot of interest, and I'll bet quit a few of these speakers will be built.

        Fred

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        • Re: DIY Flat Panel Speaker Love

          Originally posted by DiasDePlaya View Post
          Maybe the panels used in publicity, made with XPS or EPS and two faces of paper, many times stronger than XPS or EPS alone, are good radiators. Just an idea...

          Or maybe the honeycomb used in packing. Just another idea...
          ... or maybe the secret ingredient ... the honeycomb materiel the Podium 1 was made of ... anyone ...
          http://techtalk.parts-express.com/fo...khanspires-but
          http://techtalk.parts-express.com/fo...pico-neo-build
          http://techtalk.parts-express.com/fo...ensation-build

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          • Re: DIY Flat Panel Speaker Love

            Originally posted by Fshow View Post
            Hi Rich
            I saw the article that you wrote on your Dml panel speakers for Parts Express. Great Job! Very well done and quite complete. I am sure, after people read this there will be a lot of interest, and I'll bet quit a few of these speakers will be built.

            Fred
            Ditto on that. Nice job Rich, very nicely done!
            In my walks, every man I meet is my superior in some way, and in that I learn from him.

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            • Re: DIY Flat Panel Speaker Love

              I've been following this project with great interest and I have a pair underway - just waiting on my PE order now. Meantime, though, a few questions:

              1) The new PE flyer says there is more info on their web site regarding the Distributed Mode Loudspeaker. I've searched high and low and can't find it. Can someone point me in the right direction?

              2) When my panels are complete, I'll be using them in the basement man cave. I'm thinking of suspending them from the rafters via 20-pound test fishing line. Anyone else done it in that fashion? Is there a "recommended" or suggested height from floor and ceiling? Connection to the panel will be metal screw eyes. Can anyone suggest better?

              Thanks for any insight. I'm looking forward to hearing these. I'll be driving them with a modified TDA7297 chip amp - 4 ohms and 15 watts per channel.

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              • Re: DIY Flat Panel Speaker Love

                http://www.parts-express.com/pedocs/...o-exciters.pdf

                Generally highlighted in the 'Product Details' section or 'Manuals and Resources' of their exciters.

                AudioCircle has some good information http://www.audiocircle.com/index.php?topic=70541.0
                http://techtalk.parts-express.com/fo...khanspires-but
                http://techtalk.parts-express.com/fo...pico-neo-build
                http://techtalk.parts-express.com/fo...ensation-build

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                • Re: DIY Flat Panel Speaker Love

                  Thanks, Kornbread. The flyer, though, alluded to the "complete" article based on Rich's piece. That's what I'm trying to find - without any success.

                  My two panels are in the basement - drying. No chance today of getting my Ultras. Two feet of snow on the North Coast (think Rochester, NY) and things are pretty much shut down.

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                  • Re: DIY Flat Panel Speaker Love

                    i was trying to find the rich article too....no such luck.

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                    • Re: DIY Flat Panel Speaker Love

                      Originally posted by Kornbread View Post
                      ... or maybe the secret ingredient ... the honeycomb materiel the Podium 1 was made of ... anyone ...
                      The Podium honeycomb is paper, is not a secret. I don't know the material that cover this honeycomb.

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                      • Re: DIY Flat Panel Speaker Love

                        Originally posted by captainjack115 View Post
                        Ditto on that. Nice job Rich, very nicely done!
                        Thanks guys... appreciate the nice comments!

                        Back from out of state and hope to get back to the panels... been a very busy year already but hoping to get into a more advanced design soon!!

                        Cheers!

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                        • Re: DIY Flat Panel Speaker Love

                          Originally posted by DiasDePlaya View Post
                          The Podium honeycomb is paper, is not a secret. I don't know the material that cover this honeycomb.
                          Hello DiasDePlayer, I've read different things over the years about Podium panel. I have seen it stated that was a Nomex honeycomb but in searching for this info, I see it stated (at least for the Model 1 via a 6 Moons review) that the "honeycomb inside the transparent polyester sealing is made of a phenolic paper".

                          So, in fairness, if it is a phenolic paper honeycomb it is much more plastic than paper. Paper itself tends to be over damped unless treated.

                          On a related note, after the holidays I treated cheap foam board with the typical PVA+water mixture and, while I have not listened to it (it warped pretty badly and didn't mount an exciter due to this), it hardened the paper surfaces much better than expected. The infamous "knuckle rap" test showed that it had a taught, drumhead-like quality. This was very encouraging... light and rigid. I and will be treating another set of boards soon and will let them dry naturally this time (no hair drier) to see if they will dry more flat.

                          Have these spec'ed for a wall-hung panel design using Ikea picture frames... should be a fun project for sure.

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                          • Re: DIY Flat Panel Speaker Love

                            If in the future I see a flat panel that have a sound quality similar to a good studio monitor, I will build a pair immediately! I think that the concept of a flat panel speaker is fascinating.

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                            • Re: DIY Flat Panel Speaker Love

                              Originally posted by DiasDePlaya View Post
                              If in the future I see a flat panel that have a sound quality similar to a good studio monitor, I will build a pair immediately! I think that the concept of a flat panel speaker is fascinating.
                              The notion of boxless speakers has always appealed to me, that's why my main speakers are Magnepans.
                              In my walks, every man I meet is my superior in some way, and in that I learn from him.

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                              • Re: DIY Flat Panel Speaker Love

                                I was playing around with trying to tame some of the brightness of my panels and took two bath towels, folded in half length-wise, and draped one over each panel. Significant difference - and to my ear another layer of bass. They may not look pretty, but that's okay. Mine are suspended from the basement ceiling with 20-pound test fishing line - 50 inches from the back wall and about 48 inches from the ceiling joists.

                                I'm driving them with a modified TDA7297 chip amp - 15 watts per channel and four ohms. That's more than enough power to drive these babies to ear-bleeding loudness.

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