Can I extend the Rear and Center channel speaker cables? Related Searches Arena 9 extend speaker cables speaker cables SteelSeries Yes, the rear speakers and center channel speaker use standard "RCA" connectors that can be used with an extension cable. Related articles Can I listen to Bluetooth and USB audio at the same time? Arena 9 Setup Does 5.1 surround work on PlayStation? Are the rear speakers fully wireless? Can I extend the audio cables?