From THX:
THX developed cable specifications for accurate system connections because cabling is an important element in the signal path of home entertainment systems. Home theater systems, with their many additional channels and components, represent a unique challenge in maintaining the integrity of the audio signal. A complete system typically includes source equipment, a surround controller, room equalization, multi-channel amplification, and at least six loudspeakers. The cumulative effects of frequency response errors, hum, and other distortions become very audible in such complex, multi- channel home theater systems. THX Certified interconnects are built include a series of electrical, physical and ergonomic specifications that guarantee top-notch sound reproduction and premium-grade construction
The criteria by which THX certifies cables include:
Audio cable electrical specifications for insertion loss and bandwidth to minimize frequency response deviations and signal losses, given a usage length.
A widely recognized color coding standard for easy channel recognition and simplified polarization.
Jacket printing of vital information to indicate polarity, grounding location and usage length limits.
Mechanical specifications for connection integrity insuring cabling’s longevity and reliability.
Video cable electrical specifications for insertion loss and bandwidth to preserve color purity and picture detail and stability.
Jeeeeeeeeeez, give me a &*%@*!^ break!
