Armour Home Electronics
QED Reference X-TUBE 400 Speaker Cable - 4mm² - Banana Plug to Banana Plug - 50m
Experience unparalleled audio clarity with the QED Reference X-TUBE 400 speaker cable. Crafted with OFC copper plated in silver, it delivers exceptional linearity for precise sound reproduction. Key specifications include a 4 mm² cross-section, low 0.008 Ω/m loop resistance, and a 6 mm outer sheath diameter.
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Updated on June 08, 2026
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