QED XT400 Speaker Cable 50M


QED’s multi-award winning XT400 speaker cable, utilising X-TubeTM 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-TubeTM 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.

SKU: C-XT400/50 Categories: ,

X-Tube™ Technology

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

Silver plated 99.999% oxygen free copper conductors

Provides a low frequency path for the audio signal and delivers stunning high frequency detail


Wire gauge – 12 AWG

Jacket OD – 6.00 mm
Cross-sectional area – 4.00 mm²
Loop resistance – 0.008 Ω/m
Capacitance – 43 pF/m
Inductance – 0.50 µH/m
Dissipation factor – 0.0400
Recommended for all high end installations
Stranded Diameter – 2.75 mm (min)
Suitable for ABS, Metal & Maxi Airloc


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