Something amiss with the filter plots. Hopfully just in the plots. I have a symmetric impulse response, which must yield a linear phase shift (delay) in the frequency domain. Plot shows non linear phase. I can attach more info if needed. My impulse responses are in REW (15 lines skipped with camilla)format which do indeed yield the correct frequency response with an inverse transform in REW.
[img]blob:http://moodeaudio.org/715249f1-836b-4618-b7a2-fbaf56d7f677[/img]
[img]blob:http://moodeaudio.org/715249f1-836b-4618-b7a2-fbaf56d7f677[/img]