).
Analog delay...
Such delay is really possible, but I dont think we, humans, can detect it.... I have seen such delay circuits employed in old full-analog color tv to delay the chrominence signal (C signal) few hundreds of nano seconds to properly catch up with luminence signal. It works there because the C signal is at 4.33 (PAL) or 3.58MHz (NTSC).
The bass spectrum of audio lies just between 20 to 500Hz and these low frequencies cannot be delayed at much as 30mS by passive networks. It should be much less than few hundreds of nano seconds.
Obviously such delay, if present in audio circuit, we wont be able to sense it.
Such delay is really possible, but I dont think we, humans, can detect it.... I have seen such delay circuits employed in old full-analog color tv to delay the chrominence signal (C signal) few hundreds of nano seconds to properly catch up with luminence signal. It works there because the C signal is at 4.33 (PAL) or 3.58MHz (NTSC).
The bass spectrum of audio lies just between 20 to 500Hz and these low frequencies cannot be delayed at much as 30mS by passive networks. It should be much less than few hundreds of nano seconds.
Obviously such delay, if present in audio circuit, we wont be able to sense it.
Try reversing polarity on the subs or speakers. This may correct the phase issues you are experiencing with the delay in your subs. Re positioning the sub can also help with phase issues.
Otherwise you can tune the 4th order to reduce group delay by adjusting enclosure volumes and port length.
Otherwise you can tune the 4th order to reduce group delay by adjusting enclosure volumes and port length.
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