Aug 5, 2026
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A comparison of the Marshall Stanmore IV and Sonos Era 300 home speakers, highlighting their distinct design, connectivity, and audio capabilities.

ManyPress

ManyPress

ManyPress Editorial

3 min readSource:ZDNET AI
Marshall Stanmore IV vs. Sonos Era 300: A Comparison

Key facts

  • The Marshall Stanmore IV lacks Wi-Fi and voice assistant support, functioning as a dedicated Bluetooth speaker.
  • The Sonos Era 300 features an hourglass design with six drivers to facilitate spatial audio and Dolby Atmos.
  • Marshall's Stanmore IV includes physical knobs for volume, treble, and bass, whereas the Sonos Era 300 uses a touch strip.
  • The Era 300 can be paired with Sonos soundbars like the Arc or Beam to serve as rear surround speakers.
  • The Stanmore IV supports Bluetooth Auracast for pairing with other compatible Marshall speakers.

The Marshall Stanmore IV and Sonos Era 300 offer different approaches to home audio, with the Stanmore IV focusing on a traditional, analog-inspired experience and the Era 300 prioritizing smart features and spatial audio. While both speakers provide room-filling sound and bass, their technical specifications and intended use cases vary significantly based on connectivity and design preferences.

Design and Physical Controls

The Marshall Stanmore IV features a faux-leather exterior with brass accents and physical knobs for volume, treble, and bass adjustment, alongside a power switch and source selection buttons. Marshall has designed the unit for easier repair, allowing users to replace the grille, knobs, feet, and logo. In contrast, the Sonos Era 300 utilizes a tech-focused, hourglass-shaped design with capacitive touch controls that provide minimal feedback.

Connectivity and Smart Features

The Sonos Era 300 includes Wi-Fi connectivity, enabling features such as Apple AirPlay, Google Cast, and advanced voice assistant support through Alexa or Sonos Voice Control. It is designed to integrate into existing Sonos ecosystems, including acting as rear surround speakers for soundbars like the Beam or Arc. The Marshall Stanmore IV lacks Wi-Fi and built-in microphones, functioning primarily as a dedicated Bluetooth speaker with support for Bluetooth Auracast. It does, however, include an RCA port for connecting analog devices.

Audio Performance

The Sonos Era 300 is built for spatial audio, utilizing an array of six drivers—including woofers angled for stereo sound and multiple tweeters—to bounce audio off ceilings and walls. The Marshall Stanmore IV relies on forward-facing sound, which the reviewer noted provides a bass-heavy but clear listening experience that avoids ear fatigue. While the Era 300 maintains clarity at higher volumes, the Stanmore IV is noted for its aesthetic appeal and tactile control interface.

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This article was independently rewritten by ManyPress editorial AI from reporting originally published by ZDNET AI.

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