QSC White Replacement Subwoofer for KC12

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The QSC Replacement Subwoofer for the KC12 Column Speaker System is a factory-engineered low-frequency module designed to restore the original performance, power, and tonal balance of the KC12 active system. Featuring a high-performance woofer optimized for deep, controlled bass response, this replacement subwoofer integrates seamlessly with the KC12’s built-in amplification and DSP, ensuring consistent acoustic performance and reliable operation for live sound, portable PA, and installed applications. Built to QSC’s rigorous quality standards, it delivers tight low-end extension, high output capability, and durability suitable for demanding professional use, making it an ideal solution for maintenance, repair, or system restoration while preserving the KC12’s signature clarity and full-range sound coverage. Show more