Star Quad Cable Demonstration - Video

Star-Quad Cable - Video Demonstration

Benchmark has recorded a lab demonstration that shows what happens when a standard two-wire cable is exposed to common sources of magnetic interference.

You will be able to hear the interference, see it on an oscilloscope, and view its spectrum on an FFT. A star-quad cable and a standard cable are exposed to the same sources of magnetic interference and the results are compared. This demonstration shows the dramatic difference between the two cables. The star-quad cable provided a 20 to 50 dB reduction in magnetic interference, keeping the interference below audible levels.

Note: The interference will play through the left channel while John narrates on the right channel.

View the video on YouTube

Additional Reading

"The Importance of Star-Quad Microphone Cable" - Benchmark Application Note, John Siau

"Evaluating Microphone Cable Performance & Specifications" (12-page test report)

"The Star Quad Story" (1-page technote)
"What's Special About Star-Quad Cable?" - SOS, November 2009
"How Starquad Works" - Steve Lampen, Belden Cable, August 2012


Wikipedia: "Star Quad Cable"


John Siau
John Siau


John Siau is VP and Director of Engineering at Benchmark Media Systems, Inc.