DURABLE CONSTRUCTION: Built to withstand the demands of professional use, the HA-P15WS8 features a robust construction that ensures durability and consistent performance, making it well-suited for challenging audio environments. The Harmony HA-P15WS8 Replacement 15" Pro PA Subwoofer is crafted for professional audio applications, delivering a potent 800W output to enhance low-frequency performance in your sound system. 15" SUBWOOFER SIZE: The 15" size strikes a balance between size and powerful bass reproduction, making it suitable for various speaker cabinets and audio applications. Featuring an 8-ohm impedance, this subwoofer offers versatility in system integration, ensuring compatibility with a diverse range of amplifiers and audio setups in both professional and home environments. HIGH POWER HANDLING: Capable of handling a substantial 800W of power, this subwoofer delivers a high-output performance, ensuring clear and impactful low-frequency reproduction in your sound system. As part of the Pro PA Series, the HA-P15WS8 is engineered to meet the demanding standards of professional audio applications, providing reliable and consistent performance for sound reinforcement. PRECISE AND CLEAR BASS: Focused on high-quality audio reproduction, the HA-P15WS8 ensures precise and clear bass, contributing to an enhanced overall sonic experience. The subwoofer is optimized for a wide frequency response, delivering deep and rich bass tones that contribute to a full and immersive audio experience. ADDITIONAL ITEM SPECS: The 15" PA Woofer, with a weight of 27.4 pounds and item dimensions of 18 x 18 x 8 inches, delivers a maximum output power of 800 watts. Specifications: 15" Pro Audio Midrange PA Woofer Power Handling: Peak: 800 watts RMS: 150-400 watts Sensitivity: 93.7dB Frequency Response: 37Hz-4kHz Magnet Weight: 48 Ounces 2" Copper Voice Coil Single 8 Ohm Features: Fiber Reinforced Paper Cone Ribbed Cloth Surround Rolled Steel Basket High Flux Ferrite Magnet Detailed Specifications: Voice Coil Diameter: 50.8mm Voice Coil Height: 15mm HE Magnetic Gap Height: 10mm Voice Coil Bobbin: TIL Xmax: 2.5mm Magnet Layers: 2 Cms (Suspension Compliance): 0.229 Qms (Mechanical Q Factor): 5.74 Qes (Electrical Q Factor): 0.84 Qts (Total Q Factor): 0.73 Mms (Moving Mass): 77.65 Vas (Equivalent Volume of Compliance): 238.8 L Rs (Resonant Frequency): 37 Hz SD (Effective Piston Area): 855.3 cm2