https://audioyong.com/cox8f-8-inch-400w-pro-coaxial-speaker
400W 8-Inch Coaxial Speaker | COX8F Pro Coaxial Audio Driver
COX8F 8-inch coaxial speaker delivers 400W max power, 90.6dB sensitivity, carbon cone, 8-ohm tweeter, and wide frequency response from 70Hz-18kHz.
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