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About the M21 Super
The Stealth Audio M-21 Super is an advanced unlimited power cord engineered for audiophile applications. It features a massive construction with 441 individual wires, 44 layers of insulation, and 8 separate shields to ensure exceptional shielding and minimal interference. The cord has a thick overall diameter of over 1/2 inch and includes a 100% coverage shield with a semi-transparent mesh outer jacket. The gauge calculation is 21x6x30AWG equaling 9 gauge for the AC lines and 21x9x30AWG equaling 7.5 gauge for the ground, excluding shields. The design philosophy emphasizes the importance of the ground wire, which is shielded because it is part of the signal path, affecting the sound quality significantly. The M-21 Super cord provides extremely low AC and ground resistance, typically 5 to 10 times lower than standard AC cords, resulting in improved sonic performance. It is compatible with any 15 or 20 amp wall sockets but achieves best results when used with proprietary Stealth wall sockets. Pricing varies by length, with the 1.2 meter version
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