The Marshall Acton III brings the legendary presence of stage audio straight into your living space. As the most compact speaker in the home lineup, it has been completely re-engineered to deliver a significantly wider soundstage than its predecessor. Powered by an advanced Class-D amplifier array driving outward-angled tweeters, the Acton III pumps out a sweeping, balanced acoustic experience filled with crisp highs and heavy, rumbling bass.

An Even Wider Room-Filling Sound

Acton III features a brand-new acoustic design that pushes sound further into the room. Tweeters are angled outwards while updated waveguides deliver a consistently solid sound that is so wide it chases you around the room. The built-in Dynamic Loudness feature automatically adjusts the tonal balance of the audio, ensuring your music sounds flawless and rich at absolutely any volume level.

Next-Generation Bluetooth 5.2 Connectivity

Step into the future of wireless streaming. The Acton III is equipped with Bluetooth 5.2 technology, ensuring a rock-solid connection, lower latency, and pristine audio quality. It is fully built to support next-generation Over-the-Air (OTA) updates via the app, ensuring your home speaker is always equipped with the latest software features and audio capabilities.

Analog Precision & Iconic Marshall Design

Take absolute tactile control over your music. The top control panel features heavy-duty brass knobs to manually adjust the Volume, Bass, and Treble, allowing you to fine-tune the acoustics to match your room’s unique environment. For traditional audio purists, the Acton III includes a classic 3.5mm auxiliary input to plug directly into your smartphone, laptop, or vinyl record player.

A More Sustainable, PVC-Free Approach

While staying completely loyal to its iconic rock ‘n’ roll heritage, the Acton III takes a smarter, eco-conscious path. Its rugged, textured unibody casing is completely PVC-free and comprises 70% recycled plastic combined with strictly vegan materials. It offers the same premium leather-look durability without harming the planet.

Technical Specifications

Marshall Home Speakers: Acton III vs. Portable Series

It is important to note that the Marshall Acton III is a home speaker and does not contain an internal battery. Unlike portable units like the Emberton or Kilburn, the Acton III must remain plugged directly into an AC wall outlet. Because it draws continuous mains power, its 60W Class-D amplifier array delivers a significantly heavier, punchier bass and an acoustic volume level that completely outclasses battery-powered alternatives. If you want a permanent speaker to anchor your bedroom, living space, or office workstation with professional fidelity, the Acton III is the definitive choice.

The Marshall App Experience

Maximize your acoustic output by pairing the speaker with the native Marshall Bluetooth App (available for iOS and Android). Beyond the physical brass knobs on top of top panel, the companion app features pre-configured Placement Compensation profiles. This smart calibration compensates for structural acoustics based on whether your speaker is placed flat against a wall or nestled deeply into a shelf corner, dynamically tuning the internal sound mapping to deliver perfect, undistorted playback.