Marshall Stanmore IV Black Portable Speaker

Marshall Stanmore IV Black — Bluetooth Home Speaker with Room-Filling Sound

The Marshall Stanmore IV Black is a Bluetooth home speaker built to fill living rooms with the brand's signature rock-and-roll attitude. Upgraded tweeters, waveguides, and a redesigned bass port give this fourth-generation model a wider soundstage and cleaner low end, while built-in Auracast™ technology lets it join a multi-room listening setup alongside other compatible Marshall units. The Stanmore IV is the right choice for listeners who want a stylish, amp-inspired home speaker with serious stereo performance.

What Makes the Stanmore IV Stand Out

What sets this model apart is the pairing of dynamic loudness equalisation with Auracast™ multi-speaker broadcasting. Dynamic loudness refines high and low frequencies on the fly so the sound stays balanced at any volume, while the customisable M-button can be assigned to a favourite EQ preset or to Spotify Tap for instant playlist access. Tactile brass knobs echo classic Marshall guitar amplifiers, and the MDF cabinet uses FSC-certified wood with 16% recycled material by weight.

Audio Performance and Connectivity Specs

The Stanmore IV runs a stereo configuration with one 5-inch woofer and two 0.75-inch tweeters driven by dedicated Class D amplifiers for a combined 110 W output, with frequency response spanning 36 Hz to 38,000 Hz and maximum sound pressure of 97 dB SPL at 1 m. Wireless connectivity covers Bluetooth 5.3 with Auracast™ and codec support for SBC, AAC, LDAC, and LC3, while wired sources plug in via 3.5 mm AUX or RCA.

• Drivers: 5-inch woofer + two 0.75-inch tweeters with waveguides
• Amplifier Output: 110 W total (60 W + 2 × 25 W Class D)
• Frequency Range: 36 Hz – 38,000 Hz
• Wireless: Bluetooth 5.3 with Auracast™
• Dimensions: 350 × 203 × 185 mm — Weight: 3.99 kg

Who the Stanmore IV Is For

The Stanmore IV is the right choice for home listeners who want a single speaker that can anchor a living room or studio without dominating floor space. Vinyl owners will appreciate the RCA input for connecting a turntable, while apartment dwellers benefit from the redesigned bass port that keeps low frequencies clean even when the speaker sits close to a wall. Multi-room listeners will find the Auracast™ receiver mode useful for syncing playback across several rooms.

Marshall Heritage and Repairability

Marshall has been building guitar amplifiers since the 1960s, and this model carries that heritage into home audio with its amp-style grille, brass control knobs, and vegan leather-like trim. Designed and engineered in Sweden, the speaker is built around a repairable MDF cabinet with replaceable knobs, feet, and grille available as spare parts.