The Cloud CS-CSUB8 In-Ceiling Subwoofer is an 8-inch subwoofer featuring exceptional intelligibility and musical performance. Using premium drivers and electronics, the CS-CSUB8 offers high sensitivity,smooth frequency response, and excellent off axis performance. All models offer ZeroEdgeâ magnetic grilles which remove to reveal high or low impedance switch settings for distributed audio systems.Designed exclusively for Cloud Electronics in the USA by a specialist team of speaker design engineers, the new CS-C Series speakers are extremely installer friendly and are tuned acoustically to complement the Cloud range of amplifiers and mixer amplifiers. Built for quality performance, Cloud speakers are designed and tested to a superior standard by engineers who care and include a comprehensive 5-year commercial warranty.