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About the 107
The KEF 107, flagship of the Reference Series from the late 1980s to early 1990s, features advanced Coupled Cavity (CC) bass system with two 10-inch woofers in separate sealed enclosures feeding a shared cavity and port, minimizing distortion and vibration via push-pull configuration. It employs Conjugate Load Matching (CLM) for flat 4-ohm impedance, ferrofluid-cooled T33 1-inch metal-dome tweeter, 5-inch polypropylene-cone midrange (B110), and two 10-inch pulp-cone woofers (B250). Includes KUBE 107/2 active equalizer for LF/HF contour adjustments. Renowned for deep 20Hz bass extension, high 112dB output, and audiophile performance across genres, though demanding on amplifiers. No longer manufactured.
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