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 Arena 9 Setup Can I listen to Bluetooth and USB audio at the same time? Can I use the Arena 9 without an USB-C port? Are the rear speakers fully wireless? Can I extend the audio cables?