Marshall Acton IV - Black - Cream

Description

Heritage Design Meets Modern Acoustics

The Marshall Acton IV carries the visual language of classic stage amplifiers into a compact home footprint. Behind the iconic brass-accented grille, textured vinyl casing, and vintage-inspired control panel lies a completely re-engineered acoustic core. This fourth-generation model extends its frequency response out to an impressive 38,000 Hz, giving the top end a newfound sense of air, space, and resolution while maintaining the authoritative, dynamic character the brand is historically known for.

Dynamic Stereo and Controlled Bass

At the heart of the cabinet sits a robust 4-inch woofer driven by a dedicated 60 W Class D amplifier, flanked by two 0.75-inch tweeters that run on their own independent 25 W Class D stages. The tweeters now employ improved waveguides to significantly broaden the stereo sweet spot across larger listening areas. A redesigned rear-firing bass-reflex port manages internal cabinet pressure, generating tighter, more composed low frequencies down to 37 Hz even when pushed to its maximum 95 dB sound pressure level.

Bluetooth 5.3 and Auracast™ Integration

Wireless streaming is handled by a next-generation Bluetooth 5.3 module that supports an array of advanced codecs, including SBC, AAC, LC3, and high-resolution LDAC for audiophile-grade transmission. The integration of Auracast™ technology completely removes traditional pairing limitations, allowing the speaker to seamlessly join a multi-device network. When paired with a compatible transmitter or a dedicated hub like the Marshall Heddon, it streams perfectly synchronized audio throughout your entire home.

Tactile Controls and App Calibration

The top brass panel retains a highly physical analog interaction experience, featuring dedicated rotary knobs for adjusting volume, bass, and treble independently. A newly integrated media jog dial simplifies playback navigation, while the customizable M-button provides instant access to Spotify Tap or your preferred EQ presets. For the most precise tuning, the companion application features a built-in room calibration tool that automatically adjusts the speaker's acoustic output to compensate for room reflections.

Frequently Asked Questions (FAQ)

How does it differ from the Acton III?

The Acton IV brings several significant technical upgrades over the Acton III. On the acoustic side, total power jumps from 60 W (2 x 15 W + 30 W) to 110 W thanks to a tri-amplified design. Frequency response extends from 45 – 20,000 Hz up to 37 – 38,000 Hz, delivering both deeper bass extension and higher treble resolution. On the connectivity side, the Bluetooth module moves from version 5.2 to 5.3 with the addition of Auracast™ technology and the high-resolution LDAC and LC3 codecs. The Acton IV also adds dedicated RCA inputs, a media jog dial for playback navigation, and a room acoustic calibration tool via the companion app.

Can I connect a turntable directly to this speaker?

Yes, the back panel includes dedicated RCA inputs specifically designed for this purpose. You will need to ensure your turntable has a built-in phono preamplifier, or you must connect an external phono stage between the turntable and the speaker, as the Acton IV only accepts line-level analog signals.

What does the Dynamic Loudness feature do?

Human hearing naturally loses sensitivity to bass and treble frequencies at lower volume levels. The built-in Dynamic Loudness feature continuously monitors your listening volume and automatically adjusts the tonal balance in real-time, ensuring that the music retains a full, rich sound profile even when playing quietly late at night.

What's in the Box

Marshall Acton IV speaker

Mains lead

Quick start guide

Legal and safety information