SPECIAL FEATURES: Precision cast and surface treated magnesium cone coupled to a natural rubber surround showing no sign of midrange (edge) resonances. Perfectly matched moving parts for a smooth, extended frequency response. Heavy copper rings mounted above and below the T-shaped pole piece, to reduce non linear and modulation distortion and increase overload margin. Copper plating of the top and bottom plates and a solid copper phase plug, which enhance the performance of the copper rings and improve heat conduction away from the pole piece. Gold plated terminals mounted on a stiff bakelite plate to reduce contact resistance and improve reliability. Stiff and stable injection moulded metal basket to keep the critical components in perfect alignment.

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