This Lyonforge 15" Woofer is suitable for both repairs and new speaker projects. It handles up to 400 watts of power and has an 8 Ohm impedance, making it good for sub-bass, or the bass drive in full-range cabinets. The woofer provides clear, crisp sound across all lower frequencies and features solder terminals for easy installation. It's built to satisfy professional audio requirements, with a robust mechanical design. Whether you're updating your current system or starting a new build, the Lyonforge LFS15-400 15" driver offers reliable sound performance.