DIY Sub box Build

[DatBoi69]

I have two 4in 40 watt 4 ohm subwoofers with a amplifier that has 50 watts per Channel. I was wanting to build a base flex ported box. Can anyone help out because I'm not 100% sure how to do this... if there are any audio Geeks out there it would be wonderful to hit me up!

 

[DatBoi69]

The size of my cone and rubber surround is 93 mm. The rubber surround itself appears to be quite decently sized, it is meant for about 3/4inch Excursion. If you want to look it up, it is a Drok 4" 40watt 4ohm speaker on amazon.

 

[americanaudiophile]

You need the Thiel-Small speaker parameters to design the box. The only parameter they have on Amazon is the QTS (.55). You may be able to get them here.
http/cs.droking.com/forums/
If not then you will have to measure the speaker,
http/sound.whsites.net/tsp.htm
You can use this site to design the cabinet once you get the parameters.
http/www.micka.de/en/
I would say that those are woofers not subwoofers but the speaker parameters will tell you for sure.

 

[DatBoi69]

Thanks man! It's always wonderful having someone that knows more about the subject than you! Especially for the quick response.