1) is it possible to run a guitar through a bass amp with a bass cable?

2) if i plug my guitar into a surround sound system can i distort it without a pedal?

yes u can put your guitar through a bass amp, at least with mine u can its an ibanez 10 watt nothin special but it still works u cant get really any sounds out of it at all except a little clean and if u fool with the settings a little distortion sound
Ibanez GSR190 Bass
Ibanez IBZ10B amp

Ibanez GAX30
Boss DS-1 Distortion
you have to have some sort of amplifier to plug a guitar into a PA system.

so, no.
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dont buy an amp, amps are just stupid.

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oiled... i like the feel of oiled wood in my hands... wow, that was homosexual...
actually you can plug a guitar into a regualr surround sound system, it says it a book i have as long as your system has a 1/4inch jack or if you buy an adapter