Pro Co Evolution 1FT Instrument Cable. The Pro Co EVLGCN-1 is a 1 ft long Evolution Series instrument cable that features two straight 1/4" connectors with gold contacts. This cable also features a 24 gauge copper center conductor and a 100% OFC serve shield.Evolution Series cables combine a sonically superior design and a Softtouch jacket to give you a next-level cable that will last for years to come.