input channel combo

[stompin86]

hi.

i have an amp that has two inputs. one has HI & the other is LOW inputs.
im curios to make a bridge oof both in`s just like you could do with  4 inputs like SLP`s with just using one guitar.

can i do this? is there like an adaptor to insert to male plugs in the inputs that has one female input for my guitar?

thanks