Cambridge Audio X301 Color:Black You can connect one using

You can connect one using the speakers' mono LFE subwoofer output

Supports end-to-end 8K/4K resolutions and higher refresh rate solutions with a single upgraded cable for seamless integration within the HDMI eco-system

Cartridge colour - Blue

Magnet System

and can power up to 11 at the same time

Cambridge Audio X301 Color:Black You can connect one usingCompact Sub. Full Bodied Sound More compact than other subwoofers in its class, Minx X301 packs a hefty 300W bass punch. Its active amplifier offers gain (volume), phase and crossover control for full integration into a complete Minx system. Finished in a special gloss black or white lacquer, the X301 is the perfect match for home cinema systems. Its small enough to hide in a corner, but attractive enough to leave on display.