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Mission SX1 review

Hugely entertaining for the money but not a class leader Tested at £700

Our Verdict

Hugely entertaining for the money but not as entertaining as the class leaders


  • Lashings of detail
  • agile presentation
  • sonic precision
  • impressive cohesion


  • Lack of tonal warmth
  • prioritises analysis over musical engagement

Mission was once dominant in our speaker tests, earning a truck-load of five-star reviews, Group Test wins and Awards.

Recently the story hasn’t been so positive. The budget MX range has had success, but the company has struggled to really make a mark above that level. The new SX range represents a determined effort to change all that.

Our first impression of the SX1 – the smaller of the two standmounters in
the range – is good. It’s a fresh-looking design with enough visual clues to
identify it as a Mission product.

Mission SX1: Tech specs and build
While curved cabinet panels are no longer big news at this price, they still lend these speakers a touch of visual elegance most square-sided rivals lack. Build quality is equally persuasive – the cabinet feels solid, its edges are neat, and the veneer is applied with care.

Mission has moved to an all-metal drive unit layout with the SX range. This standmounter features a 13cm aluminium mid/bass driver coupled to a 25mm titanium dome tweeter. This tweeter is mounted compliantly to reduce any adverse sonic effects caused by the vibrations from the larger drive unit.

Mission SX1

Mission SX1: Sound quality
The SX1s are impressive. They sound really fast, responding to every sonic transient with precision. Mission has got the integration between the drive units spot on, and there’s a commonality of character between the two drivers that gives the speakers a really cohesive and seamless sound throughout the frequency range.

Give Drake’s Take Care set a spin and the SX1s deliver an insightful performance. They’re composed when the production gets dense and cope with relatively high volume levels with a great deal of grace.

Fans of Mission won’t be surprised to know that the tonal balance is a touch forward, with the emphasis on agility rather than authority. Consequently, The Dark Knight Rises OST is delivered in a very crisp and precise manner, but lacks the full dose of menace and scale.

But, at just 31cm high, these are small speakers, so we’re willing to accept that. We’re more fussed, however, about the Missions’ shortfall in low-level dynamics – the kind that communicate the emotion in Johnny Cash’s deep and soulful voice on his version of Bonnie ‘Prince’ Billy’s I See a Darkness. We could do with a little more natural warmth in the sound, too.

Mission SX1: VerdictAs it is, these speakers sound a little bit too matter-of-fact to us, favouring a clinical and cool analysis over communicating the emotion, depth and enthusiasm of the music.

These speakers are a definite step in the right direction for the brand, but Mission still has a little way to go before past glories are recaptured.

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General Information

Manufacturer Website Address
Brand NameMission
Product SeriesSX
Product TypeSpeaker
ManufacturerInternational Audio Group Ltd
Manufacturer Part NumberSX1
Packaged Quantity2
Product NameMission SX1
Product ModelSX1

Technical Information

Minimum Frequency Response62 Hz
Crossover Type2-way
Sensitivity85 dB
Impedance8 Ohm
Maximum Frequency Response42 kHz
Driver Type130 mm Aluminium Woofer
PMPO Output Power75 W

Physical Characteristics

Form FactorBookshelf
Width191 mm
Depth293 mm
Weight Approximate7 kg
Height313 mm
Dimensions313 mm (H): 191 mm (W): 293 mm (D)


Environmentally FriendlyYes
Environmental CertificationWEEE