Anyway, compare that with all the port outputs I catalogued here. 22dB down isn't likely to have much of an effect.
I beg to differ. Have a look at the spectrum of random song I picked from my NAS (this one is Ultravox - Vienna). So, while woofers and port will happily play the LF (with port laso singing at -22dB at 650Hz) we can actually see that the 650Hz notes played by the port will be heavilly competing with the music signals at 650Hz which are also 20dB lower than LF. Do we really want that to happen..?
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