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Category: Subwoofer

Mission QX-12 Sub MKII- 12" Powered Subwoofer

Key Features

• Powerful 12" Long-Throw Woofer

Large 300 mm driver designed to deliver deep, impactful bass for both music and home theatre.

• High-Power Built-In Amplifier

  • 300W RMS

  • 450W Peak Output
    Provides strong bass performance with excellent headroom.

• Deep Bass Response

Frequency response reaches down to approximately 35 Hz, ensuring rich, room-filling low end.

• Adjustable Crossover (30–150 Hz)

Allows easy integration with any speakers by choosing the ideal bass cut-off point.

• Phase Switch (0° / 180°)

Helps align the subwoofer with your main speakers for tighter, more accurate bass.

• Auto On/Off Function

Automatically powers up when a signal is detected and shuts off when inactive.

• Inputs

  • LFE (mono)

  • Stereo RCA
    Compatible with AV receivers, stereo amps, and powered speaker systems.

• High Output Levels

Capable of delivering up to 118 dB for strong cinematic impact.

• Solid Construction

Heavy, anti-resonant cabinet with internal bracing reduces distortion and vibrations.

• Room Size Suitability

Best for medium to large rooms where powerful bass extension is required.

• Dimensions & Weight (Approx.)

  • Width: 400 mm

  • Height: 420 mm

  • Depth: 450 mm

  • Weight: ~23 kg

Description

Mission brings its 40 years of audio expertise to an all-new speaker range. The QX range has striking looks and impressive performance – offering amazing value in both hi-fi and AV set-ups. Advanced new designs and extensive, exacting listening tests have evolved a loudspeaker that offers exciting and dramatic performance, no matter what style of music or movies you prefer. Five core hi-fi models – 2 bookshelf designs and 3 floor standing speakers – are joined in the Mission QX range by a dedicated centre speaker, two-way surround speaker and selection of subwoofers.

  • Advanced DiaDrive cone system – front inverted dome cone delivers smooth response, driven by secondary sub cone to transfer maximum transient impact from the motor system
  • Oversized magnet motor system offers high sensitivity for maximum dynamic impact from any amplifier
  • New ‘ring dome’ treble unit offers high levels of musical detail with low distortion – the usual dome cavitation effects are avoided.
  • The slot port is profiled to reduce ‘chuffing’ distortion, yielding accurate bass performance
  • Carefully crafted acoustic crossover slopes achieve perfect integration between the drivers for a seamless performance
  • Crossover uses a laminated iron core bass coil, audiophile standard polypropylene capacitors, spaced on the PCB to avoid magnetic field interaction

THE DESIGN CONCEPT

QX series was designed to marry advanced engineering with a highly attractive and unique design that lets the speakers fit perfectly into the modern home. The front panel appearance hints at the advanced technology inside the speakers, whilst presenting an attractive face to the listener.

REVERSE GEOMETRY DRIVEN DESIGN

Mission QX series utilises Mission’s classic IDG (Inverted Driver Geometry) driver format. By positioning the treble unit below the bass/midrange driver, the length of the path is equalised so the sound waves coincide at the listener’s head height. This principle improves ‘time alignment’.

NEW “RING DOME” TREBLE UNIT

New ‘ring dome’ treble unit offers high levels of musical detail with low distortion – the usual dome cavitation effects are completely avoided

Dual ring radiator – Mission’s exclusive ‘ring dome’ utilises a woven, textile material formed in a double ring arrangement. The combination of the textile dome and the multi-ring surround applied optimum stiffness to the maximum radiating area.

Twin rear cavity non-reflecting design – back pressure from the diaphragm is vented to a twin rear cavity, reducing resonance and maintaining a wide operating bandwidth.

Woofer

Bass drivers feature the Mission DiaDrive system

Natural midrange quality with superb bass transient impact is provided by a seam-free curvilinear cone formulated from a mixture of soft pulp and acrylic fibre specially designed for midrange clarity and lucidity.

DiaDrive twin cone design:

Backing the curvilinear front cone is a stiff, conical support with increased area of contact with the voice coil for outstanding transient impact.

“Comb-Tooth Trim”

The drive unit surround and fixing screws are cleverly concealed behind this unique trim design, giving a highly technical look to the front face of the speaker.

 

  • General Description: Active Dynamic-Drive IB subwoofer system
  • Enclosure Type: Front ported
  • Driver Unit: 1 x 12″ (300mm) cone long-throw
  • Amplifier Power Output: 300W
  • Peak Power Output: 450W
  • Line Input Sensitivity: 200MV for maximum output
  • Crossover Range: 30-150Hz
  • Inputs:
    • Stereo Line In (2 x RCA Phono)
    • Mono (LFE) Line In (RCA Phono)
  • Input Impedance:
    • Line Input 10K ohm
    • LFE 5k ohm
  • Signal-to-noise ratio (S/N): ≥85 dB
  • Avg. Max Output @1m: 118 dB
  • Features: Phase inversion, Auto on-off
  • Dimensions (HxWxD): (420+58 with feet) x 400 x 450 mm
  • Net Weight: 23.0kg
  • Accessories: IEC power cord

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