Of course, you and Jerms have tried those drivers & enclosures for this particular situation and are giving good answers from your personal experience and you're trying to achieve a higher state of consciousness of all the mankind through the use of the forum
Not quite.... I have a Yamaha SG2000 and a 12" 60W guitar amp.
I have the Auras and built them into Woden Redeyes.
On the amp front, a couple of TPA3116s and 4xTPA3118s.
I reckon any of Aura NS3, Dayton ND90/91/105 would do the job for a guitar speaker. However, one thing I know about the Auras is their lack of HF oomph... Especially if you add BSC to tame the midbass/midrange.
It's a matter of taste/personal preference to some degree.
@OP, See the SPRITE design by Paul Carmody. Also, this other one.
Main thing about the second one is you'd have to roll your own crossover.
J.