QED Reference XT400 Speaker Cable [Unterminated]

Reference XT400 Speaker Cable, by QED Cables.

Reference XT400 is QED's multi-award winning XT400 speaker cable, utilising X-Tube™ technology. Silver-plated oxygen-free copper tubular conductor geometry. For use in the finest hi-fi and home theatre systems. This design delivers a massive cross-sectional area using X-Tube™ technology to eliminate the skin effect whilst maintaining a user friendly figure-of-8 geometry. This is QED's ultimate affordable upgrade for high end systems.

At low frequencies both X-Tube™ and conventional stranded/solid core speaker cables convey signals in a linear way. However, at high frequencies, X-Tube™ retains a near-linear signal transfer, whereas the conventional cable fails to conduct uniformly across the entire conductor area. The result is that X-Tube™ delivers greater fidelity across the audio spectrum which would other wise be lost in ordinary cables.

Air Gap dielectric

By increasing the separation of the conductors inside the cable, and therefore the amount of air between them, QED has created a low-loss Air Gap dielectric. This technology halves the dissipation and capacitance characteristics of the cable, and results in numerous audible improvements - particularly where timing and rhythmic accuracy are concerned. Despite this increased separation, though, XT400 retains the sort of cross-sectional area that makes it ideal for long cable runs.

X-Tube technology

Forming the cable conductors into a tube-like shape around a hollow insulating rod in the centre of the cable equalises current densities, delivers very low inductance and presents a consistent, even load to an amplifier. The result is a cable that retains more of the finest musical details, that handles rhythms and tempos in the most natural and musically satisfying way, and that outperforms rival designs costing far more.

Specification

Specifications

• Brand: QED Cables
• Range: Reference XT400
• Wire Gauage: 12 AWG
• Jacket OD: 6.00 mm
• Cross-Sectional Area: 4.00 mm
• Loop Resistance: 0.008 Ohms/m
• Capacitance: 43 pF/m
• Inductance: 0.50 µH/m
• Dissipation Factor: 0.0400
• Stranded Diameter: 2.75 mm (min)