Back box size for polk rc80i?
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Hello polk audioholics! New here.... Im getting ready to install my atmos speakers and wanted to add a back box and some fiberglass (my first floor ceilings are hollow) and wanted to know what size back box I should use for these speakers? Thanks!
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2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
erat interfectorem cesar et **** dictatorem dicere a -
So unfortunately that solution won't work for two of my speakers as the cutout is right up against a joist. See photos.
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Can anyone help?
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Leave the cavity open directly above the ceiling speaker, but stuff insulation inside the chase all around that cavity.
In-wall speakers are in-wall by design. The reason I used the Dynabox was my speakers were exposed to my attic2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
erat interfectorem cesar et **** dictatorem dicere a -
I believe these are “infinite baffle” and, as such, do NOT require an enclosure.
IIRC, @VR3 explained this to me some time ago. Perhaps he will be able to chime in. 🤷♂️
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Alea jacta est! -
They are but soft enclosure improves sound and dispersion ....especially in in high sub-floor as in pics
2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
erat interfectorem cesar et **** dictatorem dicere a -
Thanks for the input! I really didn't wanna deal with back boxes anyways, insulation should be fine.
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@mod ok to close thread.
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Enclosures do nothing for an infinite baffle
The bigger the infinite space, the better!
The only way I would recommend an enclosure for infinite baffle is if the manufacture recommends its.
Otherwise you just need to make sure the front wave and back wave never meet and you are good.
You could even mount the drivers firing outside your house towards the neighbors to share the love.- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
