Papermaker85
5,000+ posts
Banned
https://engineering.purdue.edu/ece103/LectureNotes/SRS_Speaker_and_Enclosure_Intro.pdf
ill add to this by stating.
1 finding the resonance frequency is very important.
2 determining the wave length at the resonance frequency in which the front wave reaches the mic is important when using a 4th order or 6th order alignment because of the phase of the rear wave. the rear wave is 180 degrees out of phase. its the reason you free air a speaker and get cancellation.
3 the rear wave has to travel 2X the distance the front wave has to travel to correct this.
