#1
i have an ovation ultra acoustic/electric
is is ok to put it through a 15watt Line 6 Spider 3 w/ distortion
#3
Good luck with the low end feedback wrecking your speaker cone.
Quote by Altered_Carbon
That's some bony hipster sex, which may be the best kind.
#4
It's fine, but you want a preamp on the guitar with decent volume controls. Go with a good overdrive rather than distortion though.
#6
Yeah it's fine, you'll probably get some feedback, but it all depends where you stand in relation to your amp. I've done an A/E through a Big Muff into a 40 watt amp.
My Gear:

MIM Fat Strat
Ibanez V70CE
Epiphone S-210
Danelectro '59 Factory Spec Reissue
Godin 5th Ave Kingpin

Fender Hot Rod Deluxe (x2)
Crybaby 535Q Wah
Marshall Regenerator
EHX Little Big Muff
BBE "Supa-Charger" Power Supply