Mission LX-5 MKII Floorstanding Speakers Review: Classic British Hi-Fi Sound
By 8mm Audio Experts | Floorstanding Speaker Review & Buyer’s Guide
British hi-fi brands have long been associated with balanced sound, strong engineering principles, and decades of acoustic research. Mission is one of those historic brands, founded in Cambridge in 1977 and known for its unique approach to speaker design.
The Mission LX-5 MKII Floorstanding Speakers represent the second generation of Mission’s LX series. Designed by renowned acoustic engineer Peter Comeau, the LX-5 MKII integrates technologies derived from the brand’s higher-end ranges while remaining accessible to budget-conscious audiophiles.
This review explores the speaker’s engineering design, sound performance, amplifier pairing, and how it compares with competing floorstanding speakers.
Mission LX-5 MKII Specifications
- Speaker type: 2-way floorstanding, rear-ported
- Drivers: 2 × 165mm DiaDrive composite fibre bass drivers
- Tweeter: 25mm microfibre dome with neodymium magnet
- Frequency response: 38Hz (-6dB)
- Sensitivity: 90dB
- Impedance: 8 ohm nominal
- Crossover frequency: 2.3kHz
- Recommended amplifier power: 25–150W
- Cabinet height: approx. 975mm
- Finishes: Lux Black, Lux White, Walnut Pearl
Mission’s Inverted Driver Geometry (IDG)
One of Mission’s defining design philosophies is Inverted Driver Geometry (IDG). Unlike most speakers where the tweeter sits above the woofer, Mission reverses this layout.
By positioning the tweeter below the bass driver, Mission aims to improve time alignment between the drivers. The goal is for sound waves from both drivers to reach the listener’s ears simultaneously.
This approach enhances transient accuracy and improves stereo imaging, allowing instruments and vocals to be positioned more precisely within the soundstage.
DiaDrive Bass Drivers
The LX-5 MKII uses Mission’s DiaDrive bass units, which feature a continuous diaphragm without a separate dust cap. This design improves energy transfer from the voice coil to the cone surface.
The diaphragm material combines stiffness and self-damping properties, allowing the driver to maintain control at higher volumes while minimizing distortion.
Using two 165mm drivers increases the overall cone surface area, enabling deeper bass extension and better dynamic performance.
D’Appolito Driver Configuration
The speaker uses a D’Appolito (MTM) driver layout, where two bass drivers surround the tweeter.
This symmetrical arrangement improves vertical dispersion and ensures a more consistent listening experience across different seating positions.
Listeners sitting slightly above or below the ideal listening height still receive balanced frequency response.
25mm Microfibre Dome Tweeter
The LX-5 MKII features a 25mm microfibre dome tweeter powered by a neodymium magnet.
The neodymium magnet provides strong magnetic force in a compact form, allowing precise control of the tweeter’s movement. The microfibre dome material helps produce smooth high-frequency response without harshness.
This design enables clear reproduction of high-frequency details such as cymbals, vocal harmonics, and acoustic instruments.
Linkwitz-Riley Crossover Network
The speaker uses a fourth-order Linkwitz-Riley crossover with a 2.3kHz crossover point.
This crossover design keeps the outputs of the woofer and tweeter in phase at the crossover frequency, ensuring smooth integration between drivers.
The steep 24dB per octave slopes also protect the tweeter from low-frequency signals that could cause distortion or damage.
Cabinet Design and Bracing
The LX-5 MKII cabinet uses internal bracing and acoustic damping materials to reduce unwanted resonance.
Additional structural reinforcement strengthens the cabinet walls and prevents vibration caused by internal air pressure from the bass drivers.
This improves midrange clarity and helps maintain a clean, controlled sound presentation.
Sound Quality
Treble
The microfibre dome tweeter delivers clear and detailed high frequencies while avoiding harshness. Treble reproduction remains smooth even during extended listening sessions.
Midrange
The midrange is natural and expressive, making vocals sound realistic and engaging. Instruments such as guitars and pianos are reproduced with strong tonal accuracy.
Bass
The dual DiaDrive bass drivers extend low frequencies down to approximately 38Hz. Bass response is tight and controlled rather than exaggerated.
Soundstage
The combination of IDG alignment and MTM driver arrangement produces precise stereo imaging and a well-defined soundstage.
Amplifier Pairing
With 90dB sensitivity and an 8-ohm impedance rating, the LX-5 MKII is relatively easy to drive.
Integrated amplifiers in the 40–80W range are sufficient for most rooms. Brands such as Cambridge Audio, Yamaha, Marantz, NAD, and Rotel pair well with these speakers.
Higher-power amplifiers can provide additional dynamic headroom for larger rooms or higher listening volumes.
Placement Tips
- Place speakers 30–50cm away from the rear wall
- Angle the speakers slightly toward the listening position
- Maintain at least 1.5–2m separation between speakers
- Use the supplied spikes for improved stability and bass clarity
Proper placement improves stereo imaging and prevents bass from becoming overly boomy.
Pros and Cons
Pros
- Distinctive Inverted Driver Geometry for time alignment
- Dual DiaDrive bass drivers for strong low-frequency control
- Smooth and natural midrange reproduction
- Easy to drive with most integrated amplifiers
- Classic British hi-fi sound signature
Cons
- Requires external amplifier and source components
- Rear-ported design needs careful placement
- Two-way design lacks dedicated midrange driver found in higher models
Final Verdict
The Mission LX-5 MKII delivers a traditional hi-fi listening experience with balanced sound, precise imaging, and strong engineering heritage.
For listeners building a classic stereo system with separate components, these speakers offer excellent value and a sound character rooted in decades of British speaker design.
