Did some "extensive" research and found some satisfactory calculators on the web. Here are the links:
http://www.bcae1.com/spboxnew2.htm
Gives several construction details. Also has a very useful calculator to decide if a woofer or sub (or the speaker with the greatest piston effect) should be applied in a sealed or vented (ported) enclosure.
http://www.mhsoft.nl/ (main page)
http://www.mhsoft.nl/spk_calc.asp
Calculates the internal volume of an enclosure (sealed or vented) and also determines the frequency response. A very good calculator.
http://www.bcae1.com/spboxnew2.htm
Gives several construction details. Also has a very useful calculator to decide if a woofer or sub (or the speaker with the greatest piston effect) should be applied in a sealed or vented (ported) enclosure.
http://www.mhsoft.nl/ (main page)
http://www.mhsoft.nl/spk_calc.asp
Calculates the internal volume of an enclosure (sealed or vented) and also determines the frequency response. A very good calculator.
