#1
I have a peavey valveking 112 amp.

I want to connect the speaker (electrovoice) from my friend's peavey triumph to the amp on the valveking.

The valveking amp is 16 ohms with a 16 ohm speaker. The triumph speaker can be plugged into the 4 ohm or 8 ohm socket on the triumph amp, and is currently in the 8 ohm one. I am not sure about the speaker's impedence itself but im guessing its 8 ohms as thats where its plugged in at the moment. My friend THINKS its 8 ohms too.

Can I connect the 16 ohm valveking amplifier to this "8 ohm" speaker to see if i can hear much difference between the crap stock valveking one and this one (I love the sound of his amp)? Or will I fry something?
"Sit your ass down in that f@%$ing chair and drink your GODAMN TEA!!" - Cid, FFVII

Gear:
Gibson Les Paul Standard (trans amber, 60s neck)
USA Fender Strat
Westfield acoustic
Washburn 12-string acoustic
Encore bass
Aria acoustic bass
#2
No you cannot, but you should be able to select the impedance of the load? Most amplifiers have that option. Just set it for 8 ohms before plugging into an 8 ohm speaker, otherwise you will blow out your output transformer
#3
Great thanks! No the valveking 112 has no such option. Never mind! I'll have to take you guys word for it that fitting a new speaker in this will greatly improve the tone!
"Sit your ass down in that f@%$ing chair and drink your GODAMN TEA!!" - Cid, FFVII

Gear:
Gibson Les Paul Standard (trans amber, 60s neck)
USA Fender Strat
Westfield acoustic
Washburn 12-string acoustic
Encore bass
Aria acoustic bass