I am interested in building a sub with multiple vents of slightly different lengths to decrease port lengths and smooth out resonances. When you increase the number of vents in WinISD, the vent length goes up proportionally. I assume this is giving the total length of all the vents. If that is the case, then the first port resonance will not be correct because it is being calculated from the total length of all the vents and not from the actual lengths of the individual vents. Agree?
There is another thing that has been bugging me for a while… When you change the vent end correction from two free ends to two flanged ends in WinISD, the vent length decreases. However, flaring the ends effectively increases the port diameter slightly so the port length should increase. This is what happens in Unibox, which I believe is correct. Comments?
- Doug
There is another thing that has been bugging me for a while… When you change the vent end correction from two free ends to two flanged ends in WinISD, the vent length decreases. However, flaring the ends effectively increases the port diameter slightly so the port length should increase. This is what happens in Unibox, which I believe is correct. Comments?
- Doug