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    Home»Mobile Accessories»Marshall Bromley 750 Review: The Stage is Yours
    Mobile Accessories

    Marshall Bromley 750 Review: The Stage is Yours

    adminBy adminDecember 11, 2025No Comments12 Mins Read
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    Marshall Bromley 750 Review: The Stage is Yours
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    Verdict

    The Bromley 750 is one of the best-looking and most premium-feeling party speakers available today. It impresses with its ultra-long battery life and omnidirectional sound output, but unfortunately, it struggles to match the audio fidelity and loudness of its rivals

    • Gorgeous looks

    • Satisfying physical controls

    • Bright and tasteful lighting

    • Pleasant sound signature

    • Long-lasting, swappable batteries

    • Very pricey

    • Not as powerful as the competition

    • Bass extension could be improved

    Key Features


    • Stylish vintage looks


      This party speaker looks like a massive guitar amp, complete with loads of tactile knobs and buttons


    • Classy bi-colour lighting


      While most party speakers go all-out on a rainbow-puke LED arrays, the Marshall Bromley 750 keeps it classy with LEDs that fade between white and warm white


    • 360-degree sound


      With a whopping 8 drivers placed on all sides of the speaker, the Bromley 750 aims to provide 360-degree sound coverage

    Introduction

    Marshall has been impressing with its retro-styled and feature-packed Bluetooth speakers for quite some time now. But if you wanted something on the larger side, you were out of luck. That changes with the introduction of the Bromley 750.

    This is Marshall’s first-ever party speaker. It’s super-sized, super-powerful and ready to soundtrack your next event. The Bromley 750 certainly looks the part, but it commands a very high asking price. Marshall has the heritage to back it up, but can the Bromley compete with established favourites like the JBL PartyBox series? I’ve been listening to find out.

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    Design

    • Pull-out handle and roller wheels
    • Loads of tactile knobs and buttons
    • IP54 splash resistance

    Just like the rest of the Marshall speaker lineup, the Bromley 750 takes its styling cues from classic guitar amplifiers. However, while the other speakers are miniaturised versions, this one’s bigger than your average guitar amp.

    It stands just over two feet tall, and it features a sturdy metal grille on the front, with a leather effect covering the rear and sides. It’s a seriously heavy speaker, tipping the scales at almost 24 kg, but thankfully, there are thoughtfully placed flight case-style handles on the sides, along with built-in wheels and a telescoping suitcase handle on the back.

    Image Credit (Trusted Reviews)

    The wheels are nice and large, which means they can handle some slightly rougher pavement. They are also slightly rubberised, which helps to prevent them from chattering about too much. Still, if you can avoid it, you probably don’t want to tow this heavy box too far.

    At the top of the front panel, you’ll find an array of physical controls, again in that classic Marshall guitar amp style. There are no fewer than 7 knobs to twiddle, along with some smaller switches. Using these, you can effectively create a custom EQ without ever needing to open the app. It’s a very satisfying alternative to the usual capacitive touch buttons.

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    The power switch might be the most satisfying of them all. It’s an oversized red rocker switch, and it illuminates when the speaker turns on. Each knob is encircled by small red LED indicators that show what level you’re at, which is another really nice detail.

    Image Credit (Trusted Reviews)

    Of course, no party speaker is complete without some flashing lights, and Marshall has gone against the grain yet again. Rather than including a rainbow-coloured RGB array, the Bromley 750 has bi-colour white/warm white LEDs strewn across the speaker grille.

    It’s a much more tasteful solution, but it still makes an impact. The LEDs are bright, and they’ll strobe very quickly if you want them to – by default, the customisable M-button on the front panel will strobe all the LEDs at maximum brightness for a dazzling effect.

    There are three lighting modes to choose from, and they’re accessed via another dedicated button on the front. The first gently fades the LEDs on and off in a seemingly random pattern, the second illuminates sections of the grille in a checkerboard-style pattern, and the third illuminates LEDs in vertical stripes.

    Image Credit (Trusted Reviews)

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    You aren’t given any additional controls beyond that, but you can turn them off entirely. It’s not the most customizable lighting arrangement, but I think all three modes look great, so I’m not complaining.

    The Bromley 750 is IP54 rated. So it’s not fully waterproof, but a few splashes will do no damage. It’s all you really need for a garden party, as if it starts chucking it down, you’ll be heading inside anyway.

    Features

    • Marshall Bluetooth App
    • 40-hour+ replaceable battery
    • Microphone/instrument inputs

    The Marshall Bromley 750 works with the Marshall Bluetooth App for Android and iOS. It’s a very basic application which looks the part, but doesn’t really add any useful functionality. I’m in two minds about this; on one hand, it’s nice to have the full functionality without needing an app, but on the other, the lack of customisation options feels like a missed opportunity.

    Image Credit (Trusted Reviews)

    As an example, the customisable M-button on the front panel can be changed in the app, but it only gives you two options: It can strobe the LED lights, or it can turn on low volume mode, or you can disable it. It feels weird to have a physical button front and centre on the device, and barely any options to utilise it.

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    Otherwise, you can change the volume level, select a source and update the firmware, but that’s about it. Everything else is handled by the physical controls on the speaker itself. Unless you want to update the firmware, you can safely ignore the app without missing out on anything.

    Image Credit (Trusted Reviews)

    I love that the battery on this model is removable. It’s hidden behind a rubber flap on the rear panel, and it can be pulled out by pinching a plastic lever. The battery, too, has Marshall’s signature styling, and it sort of resembles a mini guitar amp, just without the speaker grille.

    The battery can be charged by USB-C, and there’s a handy indicator to show you the current charge level. I like that you can charge it up without dragging the heavy speaker to an outlet; it’s very handy.

    If needed, you could bring a spare battery to keep the party going for longer, but with an advertised 40+ hours of playback on a charge, you probably won’t need to. The speaker arrived fully charged, and after listening regularly for the past few weeks, it still isn’t dead.

    Image Credit (Trusted Reviews)

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    When it comes to I/O, the Bromley 750 gives you a twin RCA input, 3.5mm in and out, and dual XLR/1/4-inch combo ports. There’s also a USB-C port, but that’s only used for charging the speaker, or charging other devices from the speaker.

    This means the speaker is well equipped to accept pretty much any wired input. If you fancy an impromptu karaoke session, you could hook up a couple of microphones, or you could even connect a guitar for a small-scale gig. On the front panel, each input has its own volume knob, and there’s a separate wheel to adjust reverb and delay.

    Image Credit (Trusted Reviews)

    The 3.5mm in/out ports mean that the Bromley can be daisy-chained with other speakers. However, compared to rival brands, the ability to use multiple speakers is somewhat limited. For instance, you aren’t able to use these speakers in a wireless stereo pair, and there’s no “Stack Mode” as there was with the Emberton II and Willen speakers.

    What you do get is Auracast support, which, in some ways, is better. If you have multiple Auracast speakers, no matter the manufacturer, you can tune them all in to the same broadcast and have them play simultaneously.

    Sound Quality

    • 360-degree sound
    • 8 drivers arranged on all sides
    • Tons of EQ options

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    The Marshall Bromley 750 has a very unique driver arrangement. On the front, there’s a large 10-inch woofer and two tweeters. Then, there are two sizable mid-range drivers on each side, two tweeters on the top, and another 10-inch woofer on the rear.

    The goal is to create a truly 360-degree sound, and to an extent, it works. You can stand on any side of this speaker and it sounds pretty good, but the truth is, it still sounds best from the front. I think the additional top-firing speakers are probably the most impactful, considering this speaker is only around 2 feet tall, your ears are usually above it, and I can appreciate the extra clarity.

    Overall, I think it’s a slightly odd design decision. Keeping in mind that the speaker looks like a guitar amp, with its large metallic grille on the front, you’d expect it to fire sound from the front panel. This means it looks best placed in a corner or against a wall, but that goes against the whole ethos of the speaker arrangement. Really, this wants to be chucked in the centre of a party, and if it were more symmetrical, users would be more likely to do so.

    Design oddities aside, the Marshall Bromley delivers a very pleasant sound that lends itself particularly well to guitar-driven genres like rock and indie. Mids are punchy and precise, and there’s plenty of detail in the top end, but the sub-bass extension could be improved.

    Image Credit (Trusted Reviews)

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    Marshall claims a 20Hz – 20kHz frequency response, but I’m not sure I buy that. It certainly doesn’t feel like there’s as much low-end rumble as the JBL PartyBox 520, and that only claims 40Hz at the bottom end. It’s not something that matters when you’re blasting Weezer, but it doesn’t impress quite as much with D&B or dubstep.

    Having tested a lot of party speakers, I was initially very underwhelmed by the output. I was frequently listening at around the 50% level or higher, and was still able to hold a conversation with my friends – good luck doing the same with something like the PartyBox Ultimate.

    It was then that I noticed the right-most knob on the front control panel. This can be rotated to switch between Dynamic and Loud modes, and it makes a big difference to the output. With the knob turned all the way to the right, it’s significantly more powerful.

    Image Credit (Trusted Reviews)

    It definitely sounds a little richer and more balanced when the knob is shifted in the Dynamic direction, but the extra power available in the loud mode is nice to have. If you’re hosting a large gathering, you might very well need it.

    Now, don’t get me wrong, the Bromley 750 is very powerful, and it sounds great, but at this price, that should be a given. The problem is that I’ve tested the JBL PartyBox 520, and to my ears, it sounded better, and it was louder, while coming in at a significantly lower price.

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    What the 520 can’t match is the 360-degree sound projection. The JBL is much more directional, and whether that’s a good or a bad thing will depend on where you want to put it.

    Should you buy it?

    You want the best-looking party speaker on the market

    Style is somewhat subjective, but for my tastes, nothing comes close to matching the premium look and feel of the Bromley 750. The leatherette covering, brushed metallic accents, and tasteful bi-colour light show give this speaker a touch of class that’s rare in the segment.

    There’s no way around it. While the Bromley 750 is more than powerful enough for my needs, it’s not close to matching the volume level of the competition. Party speakers are designed for large events, and depending on the scale of your gathering, you might find the Bromley lacking.

    Final Thoughts

    Aesthetically, the Marshall Bromley 750 is easily my favourite party speaker. It looks and feels extremely premium, and every aspect of the build oozes quality. I love the tactile control panel, and the bi-colour light show makes a big impact without verging on garishness.
     
    Unfortunately, the sound quality didn’t impress me as much. It still sounds very good, especially with rock music – but I felt the clarity, bass response, and loudness were more impressive on the PartyBox 520, which is a much cheaper speaker. With a £900 price tag, I was hoping for more.
     
    Where the Marshall Bromley 750 excels is with its 360-degree sound projection and ultra-long battery life. If those are priorities, you’ll struggle to find a speaker that matches the Bromley’s 8-driver omnidirectional arrangement and 40-hour battery life.
     
    If the Bromley 750 were more affordable, I’d have an easier time recommending it, but if you’re looking for the absolute best in audio fidelity, I don’t think it hits the mark. For some, though, the impeccable styling, longevity and omnidirectional sound will be worth the cost of entry.

    How We Test

    We test every wireless speaker we review thoroughly over an extended period of time. We use industry standard tests to compare features properly. We’ll always tell you what we find.

    We never, ever, accept money to review a product.

    Find out more about how we test in our ethics policy.

    • Tested for two weeks
    • Tested with real world use

    FAQs

    Can the Marshall Bromley 750 pair with other speakers?

    The Bromley 750 doesn’t offer traditional wireless syncing, but it does support wired daisy-chaining, as well as Auracast.

    Is the Marshall Bromley 750 waterproof?

    The Bromley 750 isn’t fully waterproof, but it’s IP54 rated. This means it’ll handle some light splashes without issue, but it shouldn’t be used in the rain.

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    Full Specs

     
    Marshall Bromley 750 Review

    UK RRP
    £899.99

    Manufacturer
    Marshall

    IP rating
    IP54

    Battery Hours
    40

    Size (Dimensions)
    x x MM

    Weight
    23.9 KG

    Release Date
    2025

    Audio Resolution
    SBC, AAC-mpeg 2 and LC3

    Driver (s)
    2x 10-inch woofers, 2x 5.25-inch mid-range, 2x 1-inch tweeters, 2x 0.8-inch tweeters

    Ports
    2 XLR/6.3 mm combo jacks, AUX 3.5mm (Input and Output), USB-C, RCA

    Audio (Power output)
    500 W

    Connectivity
    Bluetooth 5.3

    Colours
    Black

    Frequency Range
    30 20000 – Hz

    Speaker Type
    Wireless Speaker

    Bromley Marshall review Stage
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