Marshall Bromley 750 review: a party speaker done Marshall’s way
In partnership with Marshall
Marshall stepping into the party speaker space feels like a natural move, but the Bromley 750 makes it clear this isn’t about chasing trends. It’s a large, high-powered speaker built to anchor a room, a garden or a gathering, while still carrying the design and sound priorities the brand is known for.
After spending time with it across different genres and setups, it feels less like a party add-on and more like a serious piece of audio kit designed for social (and even performance) spaces…
Playtime: 40+ hours (removable, swappable battery)
Sound: 360° True Stereophonic (mono)
Frequency range: 30Hz – 20,000Hz
Maximum sound pressure level: 127 dB @ 1 m
Power amplifiers: 2 × 100W (woofers), 2 × 50W (mid-range), 4 × 50W (tweeters)
Drivers: 2 × 10-inch woofers, 2 × 5.25-inch mid-range drivers, tweeters (2 × 1-inch, 2 × 0.8-inch)
Durability: IP54 (dirt & splash resistant)
Inputs: mic & instrument combo jacks
Features: built-in wheels & handles, integrated stage lights, sound character control
Design and build
The Marshall Bromley 750 avoids the usual visual clichés of the party speaker category, not shouting for attention with neon plastics or awkward shapes. Instead, it feels like a scaled-up take on Marshall’s classic design language, with a solid, rectangular build that could live in a living room, studio, or shared space without feeling out of place.
The brushed metal control panel and stamped metal grille give it that typically-Marshall premium feel, and the overall construction is reassuringly solid. Integrated stage lighting sits behind the front grille, with three modes to choose from. One offers a softer ambient glow, while the other two react to the bass. Once the volume goes up, the lighting adds atmosphere without becoming distracting, and it quickly became one of our favourite features.
Sound performance
This is a speaker built to fill space, and it does so confidently. The Bromley 750 uses Marshall’s 360-degree True Stereophonic setup, with multiple drivers positioned around the cabinet rather than firing everything straight forward. In practice, that means sound spreads evenly around the room, with audio travelling outward and upward rather than feeling directional. It’s particularly noticeable in larger spaces, where you don’t need to be standing directly in front of the speaker to feel the impact.
Treble adjustment turned out to be more enjoyable than expected. Increasing the highs added clarity without harshness, while lowering them let the bass take centre stage. Even at more intense settings, the low end kept a textured warmth rather than flattening out.
Lola Young’s ‘Conceited’ felt like a good stress test. Its bass-heavy production paired with strong vocals showed how confidently the Bromley 750 handles low-end weight while keeping vocals clear and forward in the mix.
Ease of use
Despite its size, the Bromley 750 is very easy to get on with. All the main controls sit on the top panel, with physical dials for volume, bass and treble that are intuitive and responsive. Alongside these is a simple “Character” dial, which switches between ‘dynamic’ and ‘loud’ settings according to your preferences.
In use, this makes a noticeable difference. Dynamic suits indoor listening and more balanced sound, while loud pushes the speaker harder for bigger spaces or outdoor use. Everything is clearly labelled and feels designed to be adjusted mid-play rather than set once and forgotten.
Power options
The Bromley 750 can be used plugged into the mains or running on its removable battery, which also makes charging far easier, as you can lift the battery out and top it up separately rather than moving the whole speaker. Being able to swap the battery out mid-session is reassuring and removes the anxiety of watching the percentage drop as the night goes on (though at 40+ hours of battery playtime, it would need to be one hell of a party for that to be a worry). The battery can also be used as a power bank, which is handy if you need to keep a phone or other device topped up during longer sessions.
Connectivity and inputs
There’s no shortage of connection options. Bluetooth, RCA, AUX and USB-C are all supported, so it’s easy to integrate into different setups. Bluetooth performance was especially strong during our testing, holding a stable connection over more than 70 metres in open space, with no dropouts when moving around with our connected phone.
Marshall’s live music heritage shows in the inclusion of microphone and instrument inputs. If you’re a musician, or just want the option of plugging in for rehearsals, karaoke or impromptu performances, you’re well covered.
Portability
Weighing over 52 pounds, the Bromley 750 isn’t light, but it’s clearly designed to be moved about. Built-in wheels and handles make it manageable for one person, and the speaker feels solid when rolling it across uneven ground. IP54 splash and dust resistance also make it suitable for outdoor use, while stray drinks become less of a worry…
Verdict
At £899.99, the Bromley 750 sits at the premium end of the party speaker market, but it earns its place through power, build quality and flexibility. Strong battery life, confident sound, musician-friendly inputs and a design that works both in and out of the home make it a convincing entry into this category for Marshall.
For larger homes, shared houses, musicians, or anyone who regularly hosts, the Bromley 750 feels like a speaker designed to be used, moved and turned up without hesitation.
Learn more and purchase at marshall.com.