4-core Speakon to Speakon cable. 30m x 2 Brand: CLASSIC PRO CLASSIC PRO boasts overwhelming cost performance. With a 12mm diameter, this speaker cable offers durability, flexibility, and clear, straight sound. Speaker cable Speakon to Speakon (4-core) 30m, black. Used only 2-3 times. I have confirmed it is working, but it's long and heavy, and I haven't used it in a while, so please be aware of that. If you're looking for a long cable, please consider this.