AudioQuest G2 15 AWG Bulk Speaker Cable (30 ft.)The G2 is a directionally controlled 15 AWG speaker cable is built around a Semi Solid Concentric design. Semi Solid Concentric Conductors Semi Solid Concentric conductors significantly reduce strand interaction, a major source of dynamic distortion in cables. Long Grain Copper Metal High purity Long Grain Copper (LGC) conductors minimize distortion caused by grain boundaries. Directionality All conductors controlled for RF noise directionality.