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Re: projectors, screens, and center channels
rrlev #442477 05/13/21 08:53 AM
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rrlev Offline OP
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DML is interesting but I’d think that the material being driven would be need to be carefully selected ...light with enough stiffness to move air without resonating over the intended frequency range. So I’d be really surprised if they were vibrating the display itself but that said ... it’s possible.

Re: projectors, screens, and center channels
rrlev #442482 05/14/21 03:46 AM
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Strong bass would look like gravity waves, no?


Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.
Re: projectors, screens, and center channels
rrlev #442483 05/14/21 04:35 PM
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No

Re: projectors, screens, and center channels
rrlev #442484 05/14/21 06:29 PM
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Looks like you're right Trever ... they are vibrating the screen on at least some of the OLED Sony's. Wonder what frequency range they send to the panel vs. what they send to the speakers in back.

Although I've read nothing bad about it I also wonder about the quality of the sound. My only reason to question it is the lack of DML speakers/drivers on the market. The technology has been around for quite a while.

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Re: projectors, screens, and center channels
rrlev #442485 05/15/21 02:26 AM
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I didn't know there was an extended edition of Gladiator, so I used Netflix rather than my old dvd. Unfortunately couldn't find that scene. Somehow I no longer feel ENTERTAINED. First time trying to post a picture.


[Linked Image from i.imgur.com]

Last edited by LondonCalling; 05/15/21 02:31 AM.

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Rears QS-10
2-Velodyne VDR12-BV
Onkyo TX-NR757
Optoma HD142x w/115" DIY AT Spandex screen
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Re: projectors, screens, and center channels
rrlev #442486 05/15/21 09:22 AM
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That DIY screen looks great! Nice job. What PJ are you using? Nice picture.

Re: projectors, screens, and center channels
rrlev #442487 05/15/21 09:28 AM
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Originally Posted by rrlev
My only reason to question it is the lack of DML speakers/drivers on the market. The technology has been around for quite a while.

They dont make bass below 150hz or so. You need many of them in a line array to get sound that has performance scale. If room was no issue for subs they are a really cool option for chess in his living room. There is a guy that made a Right and Left column out of them. Sounded eerily real (well through youtube with Dire Straits. Lol.)

https://youtu.be/lMvASSIvHtM

Re: projectors, screens, and center channels
rrlev #442488 05/15/21 11:39 AM
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Thanks Trevor,

The projector is a cheapo Optoma HD142x, I bought the cheapest highly recommended 1080p projector thinking that 4k's will continue to drop in price and improve. I'm not disappointed with it but i do wish it had a few more lumens when there's ambient light in the room.


LCR's M5HPOW
Rears QS-10
2-Velodyne VDR12-BV
Onkyo TX-NR757
Optoma HD142x w/115" DIY AT Spandex screen
Re: projectors, screens, and center channels
rrlev #442491 05/16/21 11:09 AM
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Smart purchase. Yes, 4K PJs are coming down. Hold on for a laser. Well worth the jump!

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