The Mission LX-10 Sub is an active subwoofer in the LX range, made to take Mission's LX-series speakers deeper into the low frequencies. Within the brand's subwoofer lineup it stands next to the QX-12 Sub and one step above the MS-10 Sub.
Key specs that matter
Mission quotes a response of 40 Hz to 120 Hz, and the onboard amplifier delivers 350 W. The cabinet is 44.7 x 31.2 x 40.7 cm and weighs 16 kg, a sizeable enclosure for the class.
Pairing
Connection is through ordinary subwoofer inputs at line or speaker level, so the LX-10 Sub can join any stereo amp or AV receiver fitted with a sub out. That makes it usable in systems from other makers, not only in an all-Mission setup.
Alternatives
The Mission MS-400 Sub is a smaller model from the MS range with less amplifier power.