QX-12SUB MKII
Subwoofer
Mission is proud to introduce the QX-12SUB MKII to complement the latest QX MKII Series of loudspeakers.
Perfect for a QX MKII Series home-theatre system or musical bass extension in 2-channel applications, the QX-12SUB MKII utilises a 12-inch (300mm) long-throw bass driver with astounding bass impact. Based on the same award-winning system found in the best-selling QX-12SUB, the QX-12SUB MKII also sports fantastic new Lux Black and Lux White finish options, to perfectly match the aesthetics of the stunning QX MKII Series loudspeakers.
QX-12SUB MKII Specifications
Drive Units | 1 x (12") 300 mm cone long-throw |
Frequency Response | 35- 120 Hz (+-±3dB) |
Amplifier Power Output | 300 W |
Peak Power Output | 450 W |
Line Input Sensitivity | 200mV for maximum output |
Crossover Range | 30 - 150 Hz |
Inputs | Stereo line in (2 x RCA phono) |
Mono (LFE) line in (RCA phono) | |
Input Impedance | Line input 10 k |
LFE 5 kOhms |
Signal-to-noise Ratio (s/n) | ≥ 85 dB |
Avg. Max Output @1m | 118 dB |
Features | Phase inversion, auto on-off |
Dimensions | Height: (420+58) mm (with feet) |
Width: 400 mm | |
Depth: (450+15) mm | |
Net Weight | 23 kg |
HIGH POWERED PRESICION
High Power Amplifier
The built-in amplifier is optimized for high impact at low frequencies. The fast response and high-power performance is perfect for movies or music.
No-Presses Paper Cones
A specially engineered 12” paper cone with increased self-damping properties offers an increased structural rigidity of the cone itself for a fuller performance and massive bass impact.

Low Pass Filter Slope
Continuously adjustable from 35Hz to 120Hz (@33dB) for seamless acoustic integration with your speaker’s performance.
High Sensitivity & Versatility
Low level inputs, output connections and a dedicated LFE input are provided. Additionally, the auto power sensor is sensitive enough to detect incoming signals of extremely low level for automatic activation of the subwoofer when required.