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Room equalizations issues aside, has anyone done a large box sub that they then place their RPTV on. I am thinking 22H x 40w x 18d....multiple 12, 15 or 18"?
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I'm no expert but I wouldn't want my tv to deal with all the vibration. I'd think it could cause damage over a period of time to connections. Just my guess. If you padded the bottom of the set it may work but I'd not do it myself.
The bulb lifespan would probably be compromised too. -
Ditto what Warren said about vibration being bad for the TV. However, if you're careful with the design, you can reduce vibration to almost nothing and it could work. You need to have opposed pairs of drivers, so the mechanical vibration forces are cancelled, and build the enclosure hella stout. You need thick walls and lots of bracing, especially near the drivers, so you have a solid coupling between the front/back or left/right driver pairs.Comment
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If it's a CRT, you'd also have to confirm that the magnetic field from the drivers won't cause interference.
PeteComment
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I just finished the first of two quad RS 15" HO's today with opposed drivers. Two on the front, two on the back. Even at really loud levels I barely feel any vibration when I place my hand on the top. It's a pretty strange feeling.
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You definitely get more vibrations in a TV from just the sound output than you would with placing a TV on the top of an enclosure. I wouldn't worry about it that much.-Tyler
Under deadline pressure for the next week. If you want something, it can wait. Unless it's blind screaming paroxysmally hedonistic...Comment
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This is a dipole sub I made a few years ago, yes that is a CRT TV with those great big magnets right underneath.:twisted: They are close anough together to act like bucking magnets.
:twisted:
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Thanks all, I think I will try some version of these and possibly get the Velodyne equalization toy or the "feedback destroyer" in order to balance possible room problems.Comment
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A ballanced and stable design is key for this. With a CRT you will have to watch for magnetic field issues, but I don't believe it would be an issue with DLP or LCD RPTVs. I did such a sub for someone I know here in Chicago with parts I had around. The box was 54 x 18 x 18" with a 15" driver on each end and 4 15" PRs on the two long sides, front and back (there was room to the back wall). He made a housing that sat on top of the subwoofer and formed a nice looking grill structure and stand for the TV. With the sub cranking, the subwoofer enclosure was by far the most stable thing in the room.
Mark Seaton
"Make no little plans; they have no magic to stir men's blood..." - Daniel H. BurnhamComment
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If you worry about a CRT why not just use shielded drivers?-Tyler
Under deadline pressure for the next week. If you want something, it can wait. Unless it's blind screaming paroxysmally hedonistic...Comment
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There than woofers with Neo motors (inherently self shielding) there are no big shielded woofers it just too costly.Originally posted by Gir
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-BressonComment
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This will hopfully hold up my Sony 50" XSRD tv. I do not htink magnetic fields are a problem with these types of sets.Comment
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