AudioQuest Golden Gate (Jack Extension) SOLID PERFECT-SURFACE COPPER (PSC) CONDUCTORS: Perfect-Surface Copper has an astonishingly smooth and pure surface. Proprietary metal-processing technology protects the wire’s surface at every stage of drawing and fabrication. When high-purity low-oxide copper is kept as soft, pure and smooth...

AudioQuest Tower (Jack Extension) SOLID LONG-GRAIN COPPER (LGC) CONDUCTORS: Solid conductors eliminate strand-interaction distortion. Evergreen’s solid Long-Grain Copper allows a smoother and clearer sound than cables using regular OFHC (Oxygen-Free High-Conductivity) copper. OFHC is a general metal industry specification regarding “loss” without any concern...

Grado Labs X-Series Extension Cable Four conductor: 15 foot (450cm) extension cable terminated with a 1/4 inch (6.3mm) plug and a 1/4 inch (6.3mm) jack. Twelve conductor: 12 foot (365cm) extension cable terminated with a 1/4 inch (6.3mm) plug and a 1/4 inch (6.3mm) jack....

Grado Labs X-Series Mini-Extension Cable Four conductor: 15 foot (450cm) extension cable terminated with a 3.5mm plug and a 3.5mm jack. The cables are constructed from the same high quality super annealed copper wire as the X-Series headphone cables, with braided sheathing. For longer...