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Mission ZX 4 Floorstanding Loudspeakers (Pair) The Mission ZX 4 floorstanding loudspeakers combine advanced audio technology with elegant design, delivering powerful bass, clear midrange, and detailed treble for an immersive listening experience. Perfectly suited for premium home theatre and audio systems. Key Features 3-way floorstanding speaker with bass reflex enclosure Two 5.25" aluminium cone bass drivers for powerful low frequencies 5.25" aluminium cone midrange driver for clear and accurate vocals 1.5" ring dome treble unit with low distortion and extended frequency response up to 30 kHz Advanced DiaDrive bass/midrange units with vented aluminium matrix cones to reduce resonance Innovative driver bracing system for improved mechanical integrity and dynamic bass output Inverted Driver Geometry (IDG) for seamless integration of drivers and balanced sound Asymmetric slot port design with serrations to minimise port noise and distortion Recommended amplifier power: 25-150W Specifications General Description 3-way floorstanding speaker Enclosure Type Bass reflex Transducer Complement 3-way Bass Driver 5.25" (130mm) aluminium cone x2 Midrange Driver 5.25" (130mm) aluminium cone Treble Driver 1.5" (38mm) ring dome AV Shield No Sensitivity (2.0V @ 1m) 90dB Recommended Amplifier Power 25-150W Peak SPL 110dB Nominal Impedance 4 Ohms (compatible 8 Ohms) Minimum Impedance 3.4 Ohms Frequency Response (+/-3dB) 40Hz ~ 24kHz Bass Extension (-6dB) 35Hz Crossover Frequency 530Hz, 2.7kHz Dimensions (HxWxD) 1075 x 240 x (350+12) mm Net Weight 24.6 kg per speaker Technology Highlights New Ring Dome Treble Unit: The ring dome design fixes the centre of the dome and positions the voice coil partway across it, forming two rings with the coil in the centre. This allows more accurate and efficient dome movement, resulting in lower distortion and superior performance up to 30 kHz and beyond. Transient response and musical detailing, especially instrument overtones and harmonics, are dramatically improved. New DiaDrive Bass/Midrange Unit: Featuring an advanced aluminium matrix cone vented to remove trapped air behind the diaphragm, the DiaDrive unit reduces resonance and delivers clearer midrange performance beyond 3 kHz. The driver surround is covered by a vented cover to control spurious output, enhancing midrange clarity. The slot port has serrations and an asymmetric flare to streamline airflow and minimise port noise. New Driver Bracing System: Oversized magnet systems provide punch and transient attack for modern recordings. Special bracing improves mechanical integrity, ensuring the bass diaphragms respond accurately to the musical waveform, delivering dynamic bass with superior detail and extension. Inverted Driver Geometry (IDG): This design equalises acoustic path lengths between bass/midrange and treble units, ensuring seamless integration and making the speaker behave as a single cohesive music system.