#1
Since theirs 2 inputs does that mean you can plug in 2 guitars at once? if so, are there any disadvantages in doing so?
#2
Yes, and yes. Plugging both guitars in makes both guitars sound bad. So don't do it.

BTW, it's not really made for that.
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#4
when both guitars are plugged in they will basically sound the same, so yeah, it's pretty annoying
Gear:
Ibanez JS100
03 Squier Strat
1980 Ovation Matrix Accoustic
Peavey Valveking 112
Washburn T-14 Taurus (Bass)
SWR Working Pro 100 watt bass amp
#5
how much is a valve king

RIG:
Ibanez GSA 60
Ibanez RG4EX1QM
Metal Muff
Jackson DKMGT
GK Backline 210
Vox VT50
Crate XT15R
Ibanez SR400QM
Ibanez GSR 200 bass
Crate B15 bass amp
Lots of Monster cords
#6
i got it for 500 plus shipping of ebay, its amazing seriously. I had to sell my Marshall tsl halfstack to buy a car so i bought the valveking. It pwns the marshall, nuff said.
#8
No. There's usually a high input and a low input, where the low is better suited for cleans/mild overdrive while the high is better for crunch/distortion. As to whether it damages the amp, I've no idea, I've never seen anyone stupid enough to try.
I'm a communist. Really.