let me explain, i play drums but always used to have people come over and jam. all i had of my own was a small peavey minx amp. i bought a peavey mark iv a LONG time ago and never got around to buying my own cab. i just found a peavey 1820 cab in mint condition for $100. i would like to start playing bass a little and i searched the forums for some info, but i'm pretty much at a loss withh all the tech stuff. i'll probably be going out to buy myself a bass today, but in the meantime i'd appreciate some of you guys helping me out with some basic setup info. like i said, i have a mark IV head and the 1820 cab. trouble is, i never figured out why i have 2 outputs on the head. from what i can tell, it's for 2 cabs? one cab will give me 210 watts while using 2 will give me 300? the cab has 2 plugs for normal and full range and plugs for bi-amp hi and low. what the heck are they??? i can't tell which plug is normal and which is full range. and what the heck IS full range in a bass cab anyway? bi-amp? bi-amp what? i only have the one head and the one cab! also, do i need a special cable to plug the head into the cab? do i use both outputs from the mark IV into the one cab? i'm sure you can see i'm at a loss here. ANY and ALL help will be VERY much appreciated!