Wall cubic capacity for SCW-3 Speakers

[Col]

I have the speakers and I wish to optimise the sound, the front wall is not yet built so I have control over the cubic capacity of the wall cavity for each of the front speakers, the rear wall is existing and it is double brick with about a 3" gap. I was thinking of puching a hard foam down the gap or an expanding spray to control the cavity size.

Any on got any helpful hints

Regards

[colterphoto1]

I've done similar treatments when installing speakers in ceiling cavities. Let's face it, a 6" or 8" woofer doesn't need a massive box for back pressure. I usually just fold a section of fibreglass insulation over and shove it into the cavity somewhat tightly. Seems like in a typical wall section, about a foot on either side of the cutout would give you about (4" x 14" x 30") or one cubic foot of enclosure. If that's right for an RB5, it should be about right for an in-wall installation.

Also, if you can, use adhesive between drywall and studs in the immediate vicinity to cut down on vibrations and popped nails or screws.

Michael

[Petrol]

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On 8/18/2005 10:20:18 AM colterphoto1 wrote:

... Let's face it, a 6" or 8" woofer doesn't need a massive box for back pressure. I usually just fold a section of fibreglass insulation over and shove it into the cavity somewhat tightly. Seems like in a typical wall section, about a foot on either side of the cutout would give you about (4" x 14" x 30") or one cubic foot of enclosure. If that's right for an RB5, it should be about right for an in-wall installation.

Also, if you can, use adhesive between drywall and studs in the immediate vicinity to cut down on vibrations and popped nails or screws.

Michael

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with these being the mains I would think you may have it cranking from time to time . . . in that case you may want a 'double' layer of sheetrock (w/ adhesive between sheets) might be considered (on both sides if it adjoines another room to keep the peace) :dunno