KILLER WATT SPEAKER LEADS Killer Watt Speaker Leads use the finest materials available and are constructed to last and last. They are happy to live under stage paraphernalia and musicians` feet. (Most others use cheaper 1.5mm). The plugs are either the Neutrik Speakons/XLRs/Jacks and/or colour coded Gold Plated 4mm stackable Banana Plugs. Jack plug leads use the new Neutrik NYS225 high current speaker jacks (All described in detail on the Plugs pages). Speakon to Speakon. 5m, 10m, and 25m.