QED is a British audio brand specialising in high-performance connectivity solutions for Hi-Fi and home cinema systems. Founded in 1973 by Bob Abraham and Ian Vine, the company is widely regarded as one of the original specialist cable manufacturers in the audio industry.

QED gained early recognition with its 79-strand speaker cable - often considered the world’s first purpose-designed hi-fi cable, which helped demonstrate that cables can meaningfully affect audio performance.

Today, QED produces a wide range of analogue and digital cables, including speaker cables, interconnects, HDMI, and network leads. Known for its “Sound of Science” philosophy, the brand uses research-led engineering and computer-aided design to deliver reliable, high-quality signal transmission across all price levels, maintaining a strong reputation among audio enthusiasts worldwide.