Hey fellas, going to go ahead and publicize my general live sound ignorance here. My bass rig is a Peavey Tour TNT 115 combo and a Peavey Headliner 210 extension cab. To this point I have been using a standard 1/4" speaker cable to connect the two. However, the combo is equipped with a Combi output that supports both 1/4" and Speakon, and the cab has a Speakon input in addition to its 1/4" jacks. I want to go Speakon for the obvious reasons (secure connection, short-proof, etc) but what I'm having trouble determining is whether I need 2-conductor or 4, and what difference it makes if I need one or the other. Obviously I'm only going to need a short cable and I was just shopping them...Amazon doesn't seem to have 3-footers that are 4 conductor, and i was going to order my footswitch for the amp (finally) from them too. I've already spent some time searching the web and this forum without really getting an answer, and I've also consulted the TNT's owner's manual which doesn't seem to specify. Thanks in advance for the input.