Terminated 3m lengths – ready to go At 3 metres each, these terminated cables are ideal for medium-sized rooms and are the ideal length for many systems. With the plugs already fitted, simply plug in and go. Airloc Forte plugs for the best quality termination QED's Airloc cold weld system ensures a high contact, long-lasting join between the plugs and cable. This not only gives the best sound possible but also excellent durability, with no chance of a dry solder break or lose connection screw. The Forte plugs use a spring loaded connection pin for a tight connection with all 4mm speaker terminals. X-tube technology – as used in the award-winning XT40 Conventional cables can fail to conduct high frequencies uniformly across the entire conductor area. QED's X-Tube cable technology allows a near-linear signal transfer at treble frequencies for greater detail and realism of sound - especially at higher frequencies. Pure copper for a detailed sound. Using 99.999% oxygen-free copper cable, there's very low resistance, which makes it easier for your amplifier to drive your speaker as well as delivering a purer sound. It also makes the cable suitable for longer cable runs, with far less quality loss over longer lengths.