Marshall Stockwell III goes big on battery and repairability

Marshall’s prolific 2026 continues with the launch of the Stockwell II wireless speaker, which boasts some pretty big specs.

The Stockwell II was one of our favourite Bluetooth speakers when it launched, so we’re looking forward to seeing how Marshall can improve, and on paper, there are some big improvements.

But before that, let’s start with sustainability. The Stockwell III introduces replaceable and modular components, a list which includes the battery, carry strap, silicone sleeve as well as the front and rear grilles to ensure that the Stockwell III can last as long as possible without the need for a full replacement if it gets damaged.

To help its longevity, battery life has been expanded from the Stockwell II’s 20+ to 40+, practically double the battery life than before. The speaker can also act as a powerbank for other devices (such as your mobile device).

Image Credit (Marshall)

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Marshall’s True Stereophonic 360 sound has made its way to the Stockwell III, offering consistent audio from whichever angle the speaker is placed to ensure there’s no ‘sweet spots’. Dynamic Loudness also features, taking care of managing bass, mid and treble at any volume and keeping them in balance.

The design remains practically the same, with its vertical silhouette and guitar-inspired PU leather strap and velvet lining. Controls have been updated to make it easier to access presets with the M-button or skip tracks with the media jog. An IP55 rating means that it’s not fully waterproof, but can survive a dip into water for a small amount of time. That’s still a jump up from the Stockwell II’s IPX4 rating.

Pricing is within reach of the older model in some markets, but overall it is more expensive. The Marshall Stockwell III has a price of £199.99 / $249.99 / €229.99 with availability in August (you can register interest in the speaker now). Colours are a choice of Black and Brass, and Cream.

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