MARSHALL STANMORE III
Design Inspired by Guitar Amplifiers
The first thing anyone notices about the Stanmore III is its unmistakable design.
Marshall has preserved the iconic visual language of its classic guitar amplifiers — textured vinyl covering, brass control knobs and the legendary Marshall logo across the front grille.
This retro-inspired aesthetic gives the speaker a personality rarely found in modern minimalist audio products.
Rather than trying to hide in the background like most smart speakers, the Stanmore III proudly positions itself as a design centerpiece.
Powerful Room-Filling Sound
Under the vintage exterior lies a surprisingly powerful audio system.
The speaker delivers 80 watts of amplification, including a 50-watt Class-D amplifier for the woofer and two 15-watt amplifiers for the tweeters. 2
This configuration allows the Stanmore III to produce deep bass, clear mids and crisp high frequencies.
With a frequency response of roughly 45Hz to 20kHz, the speaker covers the full range required for most music genres. 3
Wide Stereo Soundstage
One of the biggest upgrades in the third-generation Stanmore speaker is its redesigned soundstage.
Marshall angled the tweeters outward and improved internal waveguides to create a wider listening field.
The result is a more immersive sound that spreads across the room rather than projecting from a single point.
This makes the Stanmore III particularly effective for living rooms and medium-sized spaces.
Bluetooth 5.2 Connectivity
Modern connectivity is handled through Bluetooth 5.2, ensuring stable wireless streaming from smartphones, tablets and laptops. 4
Unlike many smart speakers, the Stanmore III focuses primarily on audio quality rather than built-in voice assistants.
This decision reflects Marshall’s emphasis on sound performance rather than smart home functionality.
Multiple Wired Inputs
In addition to Bluetooth streaming, the speaker includes traditional audio inputs.
Users can connect external devices through RCA inputs or a standard 3.5mm audio jack. 5
This flexibility allows the speaker to integrate easily with turntables, televisions or other audio sources.
For vinyl enthusiasts, this feature is particularly valuable because many modern wireless speakers lack analog inputs.
Physical Controls and App Integration
On the top panel, Marshall includes analog knobs for volume, bass and treble adjustments.
These controls replicate the tactile experience of adjusting a traditional amplifier.
Users can also fine-tune audio settings through the Marshall Bluetooth app, which provides additional EQ options.
Sustainability Improvements
Marshall has also redesigned the Stanmore III with sustainability in mind.
The speaker is built using PVC-free materials and incorporates recycled plastics while maintaining the brand’s signature aesthetic. 6
This approach reflects a broader industry shift toward environmentally responsible manufacturing.
Final Verdict
The Marshall Stanmore III successfully combines classic rock heritage with modern audio engineering.
Its distinctive design, powerful sound and versatile connectivity make it one of the most compelling home Bluetooth speakers available today.