[Moki]

Hier noch eine Idee von einem Tüftler aus dem diyaudio forum:

Zitat:Advice!! I note one pro manufacture is creating cardioid subs with front facing driver and using a bandpass (4th order) for the rear facing, all in one cabinet. As they are using "one amplifier" I am assuming they are not using an applied delay to the rear already out of phase output from the bandpass section of the cabinet. I have modelled some designs of my own with Win ISD and Winspeakz and can get the responses of the front and rear sections to track each other in response but the band pass section is, by the nature of bandpass designs, tracking the front section with a difference in group delay of around +2ms. Is this the same as applying a 2ms delay, because if it is, and correctly dimensioning the cabinet, I have cracked it!!


The design I have tracks the group delays around 2.25ms difference from 30Hz to around 90Hz where an active 4th order will be applied.

Bandpass vierter Ordnung? Lesen.........