Marshall Powerful Portable Wireless Party Speaker - BROMLEY 750
Make the street, forest, or garden your venue as this powerful portable speaker can play free from wires for 40+ hours without taking a breath. You’ll never miss a bass drop, as its True Stereophonic360° sound can reach wherever you’re standing, even outdoors. Bromley 750 has been tuned for all volumes, and makes a heavy statement wherever it shows up.
Learn more about Denzel Curry, the face of the campaign, and why his bold sound and raw energy make him the perfect fit for Marshall.
Features
- True Stereophonic: 360° sound that gets to you wherever you’re standing
- 40+ hours of portable playtime: Keep playing all day and through to the next night
- Sound character control: Adjust the tone to the pace of the party
- Integrated stage lights: Pick from three stage-inspired presets
- Mic & instrument inputs: Accompany your music with a choice of two inputs
- Dirt & splash resistant: Ready to play both indoors and out
- Built-in handle & wheels: Fully transportable and simple to move

TRUE STEREOPHONIC 360° SOUND
Feel every detail no matter the volume thanks to 360° sound that wraps you up. Crystal-clear sound hits every corner and finds its way through any crowd. In a warehouse or a field, there’s nowhere to hide.
ADJUST YOUR PARTY SOUND
Move between pre, peak and after party to discover how the sound character control knob’s “Dynamic” to “Loud” scale can tailor sound for laidback and high-energy listening moments.
For the best listening experience, use headphones.

40+ HOURS OF PORTABLE PLAYTIME
When power runs low, replace with a backup battery, or use the AC cable to plug in. Take your party through the night and onto the next, with track one sounding just as good as your final outro.

TAKE A CLOSER LOOK
Bromley 750 delivers a fully immersive and dynamic sound performance. Engineered with True Stereophonic, a unique form of multi-directional sound, music fills the air above and around you. Its durable, closed-box design ensures a tighter, more controlled, and natural sounding bass.

SOUND CHARACTER CONTROL
Match your music to the pace of your party with a few simple adjustments. Select ‘Loud’ for full power in a large space or ‘Dynamic’ for a more laid-back setting.

INTEGRATED STAGE LIGHTS
Light up the room with stage-inspired lights that synchronise to fit the mood. Pick from three presets on the speaker that each put on their own unforgettable show.

MIC & INSTRUMENT INPUTS
Connect to mics, instruments, and turntables for the ultimate party. Play with audio effects to switch up who gets the limelight or keep everything in balance with simple adjustments on the control panel.

DIRT & SPLASH RESISTANT
Start the party inside then head out. Its IP54 rating and built-in drainage system takes care of rain and dirt. Getting dusty between performances won’t affect it either.

BUILT-IN HANDLE & WHEELS
Start the party without an entourage. Bromley 750 is fully transportable thanks to its wheeled design and retractable handle. Tilt and use the wheels to roll it then use the side handles to lift it into place.
| Audio Specification | |
|---|---|
| Driver Type | Dynamic |
| Frequency range | 20 Hz – 20,000 Hz |
| Drivers | 2 × 10-inch 150W Woofers; 2 × 5.25-inch 50W Mid-range Drivers; 2 × 1-inch 7W Tweeters; 2 × 0.8-inch 14W Tweeters |
| Stereo/Mono | Stereo |
| Maximum sound pressure level | 127 dB 1 m |
| Cabinet principle | Closed system |
| Power Amplifiers | 2 × 100W Class D Amplifiers for the Woofers; 2 × 50W Class D Amplifiers for the Mid-range Drivers; 4 × 50W Class D Amplifiers for the Tweeters |
| Equaliser | Yes |
| PHYSICAL UNIT | |
| Weight | 23.9 kg / 52.7 lb; 33.5 kg / 73.9 lb including packaging |
| Width | 413 mm / 16.26" |
| Height | 652 mm / 25.7" |
| Depth | 355 mm / 14" |
| Water Resistance | IP54 |
| Colorways | Black and Brass |
| Repairability | Yes |
| Light Show | Yes |
| Portability Features | Integrated wheels and handles |
| Country of Origin | Designed and engineered in Sweden. Made in China. |
| Battery | |
| Play time | 40 hours |
| Battery type | Rechargeable, Replaceable, LFP Battery (LiFePO4) |
| Quick Charging | 20 minutes gives 5 hours of playtime |
| Charging time | 3.5 hours to full recharge |
| Power input | USB Type-C, Charge In/Out 5V, 3.0A |
| Exchangeable Battery | Yes |
| POWER | |
| Mains Input Voltage | 100–240 V |
| Mains Frequency | 50/60 Hz |
| CONTROLS AND CONNECTIVITY | |
| Wireless Connectivity | Bluetooth 5.3, Auracast |
| Wired Connectivity | Audio: AUX 3.5 mm (Input and Output), USB-C, RCA; Mic/Instrument: 2 × XLR/6.35 mm Combo Jack |
| Bluetooth Range | >70 m (229 ft) in free field |
| Top Panel Controls | Power Switch; Source Selector; Media Control; Volume; Bass; Treble; M-Button; Input 1 Volume Control; Input 2 Volume Control; Input 1 & Input 2 Effect Control; Sound Character; Light Mode; Battery Indicator |
| Codecs | SBC, AAC-MPEG 2, LC3 |
| USB Spec | USB Type-C, Charge Out 5V, 3.0A |
| Bluetooth Multipoint Connectivity | Yes |
| Mic/Instrument Input | 2 × XLR/6.3 mm Combo Jacks |
| INCLUDED IN THE BOX | |
| Box Contents | Speaker; Bromley Battery (Placed in the Speaker); Mains Lead; Quick Start Guide; Legal & Safety Sheet |
