Floorstanding loudspeakers — Mission QX-4 MKII

The QX-4 MKII is a floorstanding loudspeaker from Mission, sitting above the QX-3 MKII within the brand's QX series with somewhat deeper bass extension and greater weight. The QX-4 MKII brings Mission's more accomplished current engineering to a more substantial floorstanding format.

Key specs that matter

Rated response is 36Hz to 24,000Hz within plus-or-minus 3dB, extending meaningfully deeper than the QX-3 MKII. Sensitivity is 88dB into a demanding 4 ohm load, matching the QX-3 MKII. Recommended amplifier power spans 25-150W, somewhat wider than the QX-3 MKII's 120W ceiling. At 47.0 x 35.0 x 113.0cm and 23.8kg, the QX-4 MKII represents a meaningful step up in scale from the QX-3 MKII.

Sound and use context

Expect more capable bass extension than the QX-3 MKII, reflecting the meaningfully deeper 36Hz reach combined with the somewhat greater 23.8kg mass.

Pairing

The demanding 4 ohm impedance and wide 25-150W recommended range call for an amplifier with genuine current delivery.

Alternatives

Mission's own QX-3 MKII sits below this model as a more compact alternative for buyers wanting a smaller floorstanding footprint.