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Tannoy CMS 801 SUB PI — a discreet 8-inch in-ceiling subwoofer delivering deep, controlled bass for commercial installations. The CMS 801 SUB PI is engineered for permanent in-ceiling installation in commercial spaces such as retail environments, restaurants, conference rooms, and houses of worship. Its passive inverter (PI) design exploits the cavity above the ceiling as an acoustic chamber, generating powerful low-frequency output without a dedicated enclosure. The paintable grille and bezel integrate flush into virtually any ceiling finish, maintaining architectural aesthetics while reinforcing the low-frequency foundation of a distributed audio system. Key Features 8-inch low-frequency driver optimised for in-ceiling passive inverter loading Bandpass-style low-pass filtering for tight, well-defined bass reproduction Paintable grille and bezel for seamless architectural integration Designed to pair with Tannoy CMS Series satellite loudspeakers Suitable for 70V/100V distributed audio systems via external amplifier Specifications Driver: 8-inch (200 mm) low-frequency cone Configuration: Passive inverter in-ceiling subwoofer Enclosure: Uses ceiling void as acoustic chamber Mounting: Dog-leg spring-clip in-ceiling installation Finish: White with paintable grille Application: Commercial distributed audio, BGM, installed sound Need help choosing? Contact us at +27 32 586 3694 or support@audicoonline.co.za.