Taylor GO a True Jumbo?

I wuv cuddling my baritone.

TonyKgull , for myself I think the additional depth makes more of a playing position difference when switching between guitar bodies than a wider lower bout would. What I don't have a good feel for is how the extra depth influences the sound, as compared to a wider bout dimension. If Derick 's video had a Taylor GO body played after the Crafter SJ, maybe we could compare the two.....

I used to know a guy that built custom speaker cabinets for specific speakers and to get specific sound characteristics.  He knew his stuff and based all his measurements of the inside cavity of the cabinet to get the type of frequencies being looked for; eg: more or less bass, more or less highs etc.

From what I can remember from the stuff he told me, I would have to guess that more depth, all other things being equal, would give you a bit more bass response or literally, more depth.  But, I'm transferring speaker cabinet knowledge to guitar here, so it may not work exactly the same.

My Cole Clark had more depth than your typical dread and it had fantastic low end resonance so that kind of reinforces what I said above for me.

Like TonyKgull, I can go back to building speaker cabinets, which I did a bit of back in the day. For a 'ported' cabinet, you had to know the open air frequency response of the speaker (in other words, what note made the speaker cone vibrate in sympathy).  There was a calculation you could then make (which I've long ago forgotten) based on the volume of the cabinet in which you were putting the speaker, as to what diameter the port needed to be and how deep it had to go into the cabinet in order to have the sound from the back of the speaker emerge from the cabinet in phase so it reinforced the sound from the front of the speaker.  Get it wrong, and you could actually diminish the bass response of the cabinet.

But that's speaker cabinets. I suspect the size (and maybe even the shape) of the sound hole could make a distinct difference in the tonal response of a guitar, since like a speaker, the top and back of the instrument are both vibrating with the sound of the strings. But I don't know that's the case.  

Hey luthiers, want to chime in with actual knowledge rather than my ignorant suppositions? 

thanks, I'm thinking of removeing preamp and turning hole in a sound port on my Amber TRails

That's interesting stuff.  I especially liked that it seems that many of the characteristic physics that apply to speakers and speaker cabinets similarly apply to guitar bodies.  I've always thought that was true, but never seen it written out or spoken about by expert luthiers before.