Power for your performance. The HK Audio Premium PR:O 18 S passive subwoofer is the perfect choice for gigging musicians and performance venues. This powerful unit is capable of handling 500 watts of continuous power at 4 ohms (up to 1500 watts peak). Sound pressure levels of up to 129dB flood medium-sized venues with rich defined bass. A specially-designed active stereo crossover lets you route the correct frequency spectrum to your mid/high speaker through the Satellite Out connection. Combined with a rugged bass-reflex enclosure with a sleek and durable black enamel finish the PR:O 18 S is the perfect low-frequency foundation for your PA system. Whether youre on the road or creating a high-performance installation HKs PR:O 18 S subwoofer is the ultimate gig-ready choice for any situation. The Premium PR:O Series – the German audio standard Top-of-the-range components and German-made quality. The HK Audio Premium PR:O series delivers incredible sound with outstanding reliability. Regarded by many as Europes favourite modular sound system Premium PR:O speakers are the perfect choice for bands DJs presenters and more. Custom speaker designs housed in rugged low-resonance wooden enclosures ensure the best possible audio performance. Raising the bar for musician-friendly sound systems the Premium PR:O series boast robust made-in-Germany quality with intuitive plug-and-play operation. Powerful and reliable The robust enclosures of the Premium PR:O series are crafted from MDF with low-resonance designs. Road-ready with sleek aesthetics Premium PR:O series loudspeakers monitors and subwoofers are the ideal choice for both installations or portable applications. With a precision-designed bass-reflex enclosure the PR:O 18 S is the ideal low-frequency foundation for your PA system. This powerful 18 subwoofer is capable of delivering up to 129dB and reaching all the way down to 38Hz (at -10dB) for thunderous bass. Plus with HK Audios made-in-Germany seal of quality you can be sure that your Premium PR:O 18 S will provide incredible performance night after night. Features Perfect companion for PR:O 12 and PR:O 15 speakers 18 low-frequency woofer NL4 SpeakON input connector 500W continuous power handling NL4 SpeakON output connector for satellite speakers Built-in crossover at 150Hz Bass reflex enclosure made from MDF Specifications Power Handling: RMS: 500W Program: 1000W Peak: 1500W Impedance: 4 Ohms Sound Pressure Level: 129dB Half Space (at 10 Percent THD) Sensitivity: 104dB Half Space (1mW/1m) Frequency Response: 48Hz – X-Over ±3dB (38Hz – X-Over ±10dB) Low-Frequency Driver: 1 x 18 Woofer Crossover Frequency: 150Hz 12dB/Oct Connectors: 2 x NL4 SpeakON Pole Mount: 1 x M20 Enclosure: MDF Handles: 2 x Integrated Grille: Metal Grille with Black Acoustic Foam Finish: Acrylic Enamel Black Dimensions: 53cm x 61cm x 64cm Weight: 39.80kg / 87.70lbs