You must think I'm mad. It was a very bad joke. We are very familiar with British TV in Australia.

I was talking about the Monty Python sketch. (from memory) And now for something completely different ...a man with a tape recorder up his nose, (then a man with a tape recorder up someone elses nose and finally in stereo)
I was wondering how it might really sound. If you were really keen it could be modelled. You have the (nasal) cavity then the nasopharynx leading to the throat perhaps it would work like a BLH. It's not very funny at all..

When I read your post, I was thinking about wavelengths in relation to the dimensions of the (open) baffle. Dips and nulls can be predicted at wavelength multiples. Its funny how something so different to a ML TL or a ML TQWT can be also the same. Optimising the dimensions according to wavelengths involved. it's all a bit deep and meaningful really...

I have played with a few open baffles with a variety of speakers although my wife thought they were too big. I love the "articulation" of the fundamental frequencies.

Regards Philip