Marshall unveils Acton IV and Stanmore IV home speakers

Marshall has launched the fourth generation of its popular home speakers, unveiling the Acton IV and Stanmore IV on Tuesday, July 7, 2026. The new models, which are available for purchase immediately, feature upgraded audio components, enhanced connectivity, and a design focused on repairability and placement flexibility.

The speakers are part of the company's Homeline IV series and succeed the Acton III and Stanmore III, which were released approximately four years ago. A new version of the larger Woburn model was not announced. The Acton IV is priced at £259.99 (approximately $299.99), while the Stanmore IV costs £349.99 (approximately $399.99). Both are offered in black or cream color options.

Key improvements center on sound quality and user experience. Both models feature upgraded tweeters and waveguides for a wider, more evenly dispersed soundstage. A redesigned bass port is intended to improve airflow for cleaner and more powerful bass performance. A feature called Dynamic Loudness automatically adjusts the tonal balance at different volume levels to maintain clarity and richness.

On the design front, the power cable now exits from the bottom of the cabinet instead of the...