Marshall has refreshed its popular home speaker lineup with the new Acton IV and Stanmore IV, bringing upgraded sound, improved everyday usability, and a more sustainable design to two of its most recognizable wireless speakers.
The biggest change is the audio experience. Marshall says both speakers have been redesigned to deliver better sound quality from the inside out. The tweeters and waveguides have been optimized to create a wider and more balanced soundstage, helping music feel more spacious and immersive no matter where you are in the room. This should make the Acton IV and Stanmore IV more enjoyable for casual listening, parties, and home audio setups where consistent sound coverage matters.
Bass performance has also been improved. Marshall has redesigned the bass port with better airflow, aiming to produce low frequencies that are cleaner, deeper, and more powerful. For listeners who enjoy rock, hip-hop, electronic music, or any bass-heavy playlist, this upgrade could make a noticeable difference compared with previous models.
The design still keeps Marshall’s classic amplifier-inspired look, but there are practical changes as well. The signature brass control panel remains, now updated with improved media controls while keeping the familiar rotary knobs and toggle-style power switch that fans of the brand expect. These physical controls continue to give the speakers a premium, hands-on feel that stands out in a market filled with touch panels and app-only controls.
Marshall has also made the Acton IV and Stanmore IV easier to place around the home. A new cable routing system along the underside helps keep wires cleaner and more discreet, especially when positioning the speaker close to a wall. This small design change should make a big difference for anyone who wants a neater setup on a shelf, desk, cabinet, or media console.
Sustainability is another key part of the update. The wood used in the speaker cabinets comes from 100% FSC-certified sources, supporting more responsible forestry practices. Marshall has also designed several parts to be replaceable, including the grille, control knobs, and feet. That could help extend the life of the speakers and reduce waste over time.
With the Acton IV and Stanmore IV, Marshall appears to be focusing on the areas that matter most: richer sound, stronger bass, smarter placement options, classic styling, and more repairable construction. For anyone looking for a stylish wireless home speaker with room-filling audio and a timeless design, these new models could be among the most appealing options in Marshall’s latest lineup.
