I want to do the 3 sub box. His box is supposed to have 2.34cuft.

I have the Eclipse Aluminum cone 10s(1.39cuft each) I am going to add another one of those. Will the airspace be too small or can I over come that by adding polyfill?


According to my calculations this will be the effect of the three subs in this box:

With a Qtc of 1.16
I will get a F3 of 38.19hz

Is that Qtc a little too high or will a good amound of poly fill help me out?

 

I don't know if I would recommend it. Usually qtc is about .707 for best results. Take that with a grain of salt though, a little bit more or less can be acoustically 'ok' depending on the car size. If your subs need 1.4 cu ft each, effectively thats 4.2 cu ft total. You're practically starving the subs if you put it in that box. I would go with two, and call it a day. Or, try two ported, and see if you can make it fit. Not only will it be more efficient with power, it will be a whole heck louder.

Regards

ravi

 

well I read the whole tech sheet wrong...

wrong number for the box size... never mind me, as I was...

 

No problem! Best of luck..let me know if I can be of any more assistance =)