Bring the party to life with the Marshall Bromley 750 Bluetooth Party Speaker in Black & Brass, a powerful portable party speaker designed to deliver immersive, high-volume sound across large indoor and outdoor spaces.
The Bromley 750 features Marshall's True Stereophonic 360° sound, using front-, rear-, side-, and up-firing drivers to distribute audio around the speaker. Its powerful acoustic system combines two 10-inch woofers, two 5.25-inch mid-range drivers, two 1-inch tweeters, and two 0.8-inch tweeters, delivering an impressive frequency range of 20Hz–20kHz and a maximum sound pressure level of 127dB @ 1m.
For serious output, the Bromley 750 uses two 100W Class D amplifiers for the woofers, two 50W amplifiers for the mid-range drivers, and four 50W amplifiers for the tweeters. Its closed-box cabinet is designed to produce tight, controlled bass, while the Sound Character control lets you adjust the speaker from a more natural sound through dynamic listening and into a high-energy Party Mode.
The party atmosphere goes beyond sound. Integrated stage lighting offers three built-in light-show presets that can synchronise with your music, while dedicated microphone and instrument inputs allow you to connect performers, microphones, or other compatible equipment.
With 40+ hours of portable playtime, the Bromley 750 is built for extended events. Its rechargeable and replaceable LiFePO4 battery provides up to 5 hours of playback from a 20-minute quick charge, while the speaker can also operate directly from mains power. The removable battery can additionally function as a power bank for charging compatible devices.
Despite its substantial size, the Bromley 750 is designed for mobility with integrated wheels, a retractable handle, and side handles. Its IP54-rated construction provides resistance against dust and water splashes, making it suitable for both indoor events and outdoor gatherings.
Wireless connectivity comes through Bluetooth 5.3 with Auracast, Bluetooth Multipoint, and a range of more than 70 metres in an unobstructed environment. Wired connections include AUX, USB-C, RCA, and two XLR/6.35mm combination inputs for microphones and instruments.
Finished in Marshall's iconic Black & Brass colourway, the Bromley 750 is designed to make a statement — both visually and sonically.
Key Features
• Marshall Bromley 750 portable Bluetooth party speaker
• Premium Black & Brass finish
• True Stereophonic 360° sound
• 127dB maximum sound pressure level
• 40+ hours of portable playtime
• 2 × 10-inch woofers
• 2 × 5.25-inch mid-range drivers
• 2 × 1-inch tweeters
• 2 × 0.8-inch tweeters
• Integrated stage lighting with 3 presets
• Adjustable Sound Character control
• Bluetooth 5.3 with Auracast
• Bluetooth Multipoint connectivity
• 70m+ Bluetooth range in free field
• IP54 dust and water resistance
• Replaceable LiFePO4 battery
• Quick charging – 20 minutes provides up to 5 hours of playtime
• Built-in wheels and retractable handle
• Side carrying handles
• 2 × microphone/instrument inputs
• AUX, USB-C and RCA connectivity
• Marshall Bluetooth app compatibility
• USB-C power output for compatible devices
Product Specifications
• Brand: Marshall
• Model: Bromley 750
• Product Type: Portable Bluetooth Party Speaker
• Colour: Black & Brass
• Audio: Stereo
• Driver Type: Dynamic
• Frequency Range: 20Hz–20kHz
• Maximum Sound Pressure Level: 127dB @ 1m
• Drivers: 2 × 10" woofers + 2 × 5.25" mid-range + 2 × 1" tweeters + 2 × 0.8" tweeters
• Woofer Amplification: 2 × 100W Class D
• Mid-Range Amplification: 2 × 50W Class D
• Tweeter Amplification: 4 × 50W Class D
• Cabinet Principle: Closed system
• Wireless Connectivity: Bluetooth 5.3 / Auracast
• Bluetooth Multipoint: Yes
• Bluetooth Range: >70m in free field
• Wired Connectivity: 3.5mm AUX / USB-C / RCA
• Mic/Instrument Inputs: 2 × XLR/6.35mm combo jacks
• Playtime: 40+ hours
• Quick Charge: 20 minutes provides up to 5 hours
• Full Charging Time: Approximately 3.5 hours
• Battery Type: Rechargeable, replaceable LiFePO4
• Water & Dust Resistance: IP54
• Weight: 23.9kg
• Dimensions: 652 × 413 × 355mm
• Charging: USB-C
• USB-C Output: 5V / 3.0A
• Mains Input: 100–240V, 50/60Hz
• Lighting: Integrated stage lights with 3 presets
• Compatible App: Marshall Bluetooth App
• Portability: Integrated wheels, retractable handle and side handles
Care Instructions
• Clean the speaker using a soft, dry cloth.
• Do not immerse the speaker in water.
• The IP54 rating provides protection against dust and water splashes but does not make the speaker waterproof.
• Avoid prolonged exposure to heavy rain or standing water.
• Keep charging and connection ports clean and dry.
• Avoid abrasive cleaners, solvents, and harsh chemicals.
• Use the integrated wheels and handles when moving the speaker rather than dragging or lifting it unnecessarily.
• Store in a clean, dry environment when not in use.
The Marshall Bromley 750 Bluetooth Party Speaker Black & Brass is built for big parties and large spaces, combining 127dB output, immersive 360° sound, 40+ hours of battery life, integrated stage lighting, versatile microphone and instrument inputs, IP54 protection, and powerful rolling portability in one serious party speaker.
