Re: Allpass Filter

Hi Dave,

Thanks a lot ! This mini tutorial I had seen it before,but sorry I know very litter about.So excuse me,can I ask you some questions: 
1、What are the units of these parameters(R、C、F)  ?
2、For  second-order allpass , Whats the common valve of C and Q ? 
3、What parameters should I pay attention to when I choose  amplifers ?

Dawson