Robert_J: Thx for the info reg the tuning, didn´t know that... It has a 12hz filter so tuning to 15hz seems good, but the port calc gives me a length of 48" and the a 16" diam sono with 3 cuft is only 33" long...
Thinking of building a vented 3 cuft sonosub, powered by a Hypex DS4.0 (400w@4ohm). Going to use a 40cm diam sonotube, need help with calculating the length of the 4" vent. 80/20 ht/music use. AV12 specs. AV12 T/S Fs: 21Hz Qms: 4.41 Qes: .399 Qts: .366 Vas: 88 L Re: 2.97 ohm...
Has anyone had the chance to listen to both, and if you have, please comment, because I´m going to go with either one without any chance to listen to them. I´ve read a lot here about the AV12, and it seems to be a great driver, planning to have it in a sealed box 45-50 liters and powering it...