How to insulate a speaker box?

Question

I have a home made speaker box that sounds excellent. and It is ported. I want to make sure that what I did to insulate it was right.

I placed some acoustic insulation on the top panel, bottom panel, and on the back panel paralell with the port. I fluffed it in. What I am trying to get across is that I did not insulate the entire box.

It sounds great but i was wondering if I could get it to sound better by insulating different or will it not make too much of a difference. thanks.

Answer 1

Try adding more insulation  and listen if it is better or worse. Do you have a bass reflex loaded port with a tube insert resonator, or is it just the port without the resonator? My speakers are bass reflex with a loaded port.They have about 2 inches of  corrugated foam attached to five inside panels.These are manufactured speakers (Rogers ) and they sound excellent. Here are the Specs.This info. may be of some use to you.

3 way bass reflex.25ins. high. 12 ins. wide 12 ins deep.

nominal impedance 8 ohms.

sensitivity 86.5 db sl

Frequency response 45 to 20k hz  +or - 2db

power rating continuous 300 watts

Answer 2

If you want the Bass to have a little more punch, and sound "bassier" then go to a craft store and buy pillow stuffing, or quilt stuffing. fit as much as you can in the box. just keep it off the speaker contacts