Tuning a sealed enclosure II

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The previous post got lots of attention but also got severely off track.
But i think i have an equation worked out! The way to find out the box requirement is vas/((Qtc/Qts)^2-1)=Vb
Vb and vas are in liters. This thread is less for me and more for curious people who just want answers ASAP. Post more advice below. Wandering people will thank you 🙂
 
You could experiment with Aperiodic Loading.
Start with a 1/8" hole drilled in the back and keep increasing it by 16ths until it sounds good.
Also play with stuffing and room placement.
Do the "Sub Crawl" to find a good starting spot for placement.
Fill doubled up ziploc freezer bags with sand or gravel to experiment with varying the amount of actual volume in the cabinet, maybe start with an enclosure that is 10% to voluminous (LOL) and adjust down to taste.

A combination of these 4 elements will allow you to have the perfect sub for your room and your own taste.
Fiddle with it! It will be fun.
 
Hi,

The equation is only valid for Qtc > Qts.

Units of Vas and Vbox don't matter.

However stuffing can effect Qms and thus Qts.

As said in the other post, sealed and well stuffed
with Vbox = Vas is very likely your best bet.

rgds, sreten.
 
Hi Y'all,

Maybe a 1st (or second) order active HP could be used to help w/ the hump. Here is an example for 100L stuffed closed box, HP @ 95Hz. There is a great deal of latitude in volume if done this way.

Regards,
 

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