Cambridge Audio Minx MSX20 Bookshelf Speaker

A Tiny Satellite Speaker With Real Scale and Depth

The MSX20 is part of Cambridge Audio's reborn MSX Series, a modern revival of the brand's classic Minx compact speaker line. It's a passive satellite speaker small enough to disappear on a shelf or wall, built to add real stereo or surround sound to rooms where a full-size speaker doesn't fit.

The MSX20 sits a step above the smaller MSX10 in Cambridge Audio's modular range, adding a second, dedicated bass driver for more weight and scale. It's sold individually, so you can buy exactly the number you need for a stereo pair, a full surround setup, or a single center channel.

Two Balanced Mode Radiator Drivers for a Wider Sound

The MSX20 uses two 2.25-inch Balanced Mode Radiator (BMR) drivers — one general-purpose driver shared with the smaller MSX10, plus a second driver dedicated entirely to bass. BMR drivers combine traditional piston-style drive with bending-wave dispersion, spreading sound more evenly around a room than a conventional speaker, so there's less of a single "sweet spot" you need to sit in. Cambridge Audio rates the MSX20's dispersion at up to 180 degrees.

Deeper Reach Than the MSX10

The dedicated bass driver extends the MSX20's frequency response down to 120Hz, compared to the smaller MSX10's higher roll-off point. That added driver fills in lower midrange and upper bass content that a single small driver tends to leave thin, giving music and movie soundtracks more body without needing a subwoofer for every application.

Built to Mount Almost Anywhere

At just 155 x 79 x 97mm (6.1″ x 3.1″ x 3.8″) and 1.65 lbs, the MSX20 is genuinely small. It ships with a wall-mount bracket and rubber feet, and can be oriented vertically for a stereo pair, horizontally as a center channel under a TV, or placed as a surround speaker, all from the same cabinet.

Is the Cambridge Audio MSX20 Right for You?

• You need speakers that disappear into the room. At under 4 inches wide, the MSX20 fits on shelves, walls, or tight spaces a normal bookshelf speaker can't.
• You're building a surround or multi-room system. Sold individually, the MSX20 scales to exactly the channel count you need, and can double as a horizontal center channel.
• You want more bass than a single-driver satellite offers. The dedicated second driver gives the MSX20 noticeably more low-end presence than the entry-level MSX10.
• You're open to adding a dedicated subwoofer. The MSX20 pairs with the MSX Sub 200 or MSX Sub 300 for deeper bass than any satellite speaker this size can produce on its own.
• One honest limitation: this is a passive speaker with no built-in amplification, so you'll need an external amplifier or AV receiver, and its very compact drivers won't match the scale of a full-size bookshelf speaker for serious two-channel listening.

Setup, Compatibility & What's Included

The MSX20 connects to any amplifier or AV receiver with standard speaker terminals; it has no built-in amp, DAC, or streaming of its own. Its 8-ohm impedance and 25-200 watt recommended amplifier range suit everything from a small desktop amp to a home theater receiver. Included in the box: the MSX20 speaker, a wall-mount bracket, and rubber feet for shelf or stand placement. An amplifier, speaker cable, and any additional MSX20 or MSX10 speakers for a full system are sold separately.

Key Features

Dual Balanced Mode Radiator Drivers
A dedicated bass driver joins the standard BMR driver for fuller, more detailed sound than the MSX10.

Up to 180-Degree Dispersion
Bending-wave dispersion spreads sound evenly around the room, reducing the need for a single fixed listening position.

Flexible Mounting
Included wall bracket and rubber feet let it work on a shelf, stand, or wall, vertically or horizontally.

Modular System Design
Sold individually and pairs with the MSX10 satellite and MSX Sub 200 or Sub 300 subwoofers to scale to any room.

Ultra-Compact Cabinet
At 6.1 x 3.1 x 3.8 inches and 1.65 lbs, it fits spaces a standard bookshelf speaker cannot.

Center Channel Capable
Rotates horizontally for use as a compact center channel under or near a TV.

Specifications

• Type: passive, dual-driver compact satellite speaker
• Sold as: each
• Drivers: 2 × 2.25″ Balanced Mode Radiator (BMR), one dedicated to bass
• Frequency response: 120Hz – 20kHz
• Sensitivity: 88dB
• Impedance: 8 Ω
• Dispersion: up to 180°
• Recommended amplifier power: 25 – 200W
• Mounting: included wall bracket and rubber feet; shelf, stand, or wall
• Orientation: vertical or horizontal (center channel capable)
• Dimensions (H × W × D): 155 × 79 × 97mm (6.1″ × 3.1″ × 3.8″)
• Weight: 1.65 lbs each
• Finishes: Matte Black, Matte White
• Price: $129 each

Awards & Expert Reviews

Trusted Reviews tested the MSX20 paired with the MSX Sub 200 subwoofer and praised the bass as powerful without overpowering drums or guitar work, describing the midrange as rich and the overall sound as having good width and depth. This was an early hands-on impression of the combined system rather than a scored, standalone review of the MSX20 alone.

Frequently Asked Questions

Do I need a separate amplifier for the MSX20?

Yes. The MSX20 is a fully passive speaker with no built-in amplification, DAC, or streaming. Connect it to any amplifier or AV receiver with standard speaker terminals, ideally rated between 25 and 200 watts.

How is the MSX20 different from the MSX10?

Both share the same general-purpose BMR driver, but the MSX20 adds a second, dedicated bass driver, extending response down to 120Hz for noticeably more low-end weight and scale than the MSX10 offers on its own.

Do I need to buy these in pairs?

No. The MSX20 is sold individually, so you can order exactly the number you need, whether that's two for a stereo pair, one as a center channel, or several for a full surround setup.

Can I use the MSX20 as a center channel?

Yes. Its compact cabinet can be oriented horizontally, making it a discreet option for placement under or near a TV as a center channel.

Will I need a subwoofer too?

Not necessarily for casual listening, since the MSX20's dedicated bass driver already extends response to 120Hz. For movies or music that need deeper bass, the MSX Sub 200 or the larger MSX Sub 300 are designed to hand off cleanly from the MSX20's low end.

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