Cab-Link Passive Speaker Cabinet Merger 2 Guitar to 1 SpeakerWhether you want to wire up your cabinets in series or in a parallel configuration, the Cab Link makes things easy. Simply connect two speaker cables from the Cab Link outputs to each of your cabinets, and a third speaker cable from the output of the amp head to either the series or the parallel input. The Cab Link reconfigures automatically depending on which input is used, and a handy guide on the top of the unit lets you know which input should be