A speaker physics question.

[VolvoHeretic]

FWIW, all those swoopy curves do is let too much of the driver's mids/HF make their way to the mouth where they comb filter with the driver's direct output, 'muddying up' some portion of the mids [and depending on the driver, HF] BW, so such layouts are best left to wide BW folded FLHs. As a general rule, the more initial bends you can fit into the desired net bulk, the better to filter out the shorter WLs. Olson's 2,224,919 patent is the first I'm aware of to address this issue.

GM

Thanks, GM. So, a Tuba’s inspiration is out.