|
High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
|
|
|
High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
|
In Reply to: RE: Mass Loading ALTEC A7 VOTT 825 enclosures posted by Paul Joppa on February 18, 2016 at 18:34:43:
You brace every panel and tie them all together so the cab can't 'breathe' and for an 825 cab + bracing, added mass set on top calculated out to around 246 lbs, so drlowmu's experiment gives some idea how much bracing helps.
Even small, tall MLTL cabs driven with dinky little 'FR' drivers, which are intrinsically well braced, require a lot more weight than I thought.
A RadioShack 40-1354 ~5.25" FR driver tuned to around 42 Hz in a ~7"x 8"x 48" MLTL built from a pre- Civil War era Southern Pine constructed barn, which cut more like metal than wood it's so hard/stiff, still required over 60 lbs of pennies in a wood wine box to 'anchor' it to a relatively massive 'floating'/suspended floor [hardwood floors over a crawl space].
FWIW, my test is it's enough when I can stand an old silver quarter on edge and it doesn't move when the speaker's driven with pure tones and pink noise as hard as it can handle from slightly below Fs to the XO point.
GM
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Mass Loading ALTEC A7 VOTT 825 enclosures - GM 02/19/1613:33:34 02/19/16 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
