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Marshall Bromley 750 – 500W party speaker, 360° sound, 40+ hour battery
Marshall Bromley 750 is Marshall’s first portable party speaker: 500 W total amplification, True Stereophonic 360° sound up to 127 dB SPL @ 1 m, a removable LiFePO₄ (LFP) battery rated 40+ hours, and pro-grade wired and wireless connectivity in a wheeled Black and Brass design.
District M is an authorized Marshall retailer. Browse Marshall speakers, compare with Bromley 450, or read our Bromley 450 vs 750 comparison.
True Stereophonic 360° sound – hear it from every angle
Symmetric driver layout and True Stereophonic technology spread 360° sound so listeners around the speaker get balanced, clear audio.
Driver configuration:
- 2 x 10″ woofers (150 W each)
- 2 x 5.25″ midrange drivers (50 W each)
- 2 x 1″ tweeters (7 W each)
- 2 x 0.8″ tweeters (14 W each)
Total amplification reaches 500 W with maximum SPL 127 dB @ 1 m, enough to fill large outdoor party spaces.
40+ hours of use – fast charge, replaceable battery
Bromley 750 uses a removable, replaceable LiFePO₄ (LFP) pack rated for 40+ hours of playback per full charge.
- Fast charge: 20 minutes for 5 hours playback
- Full charge: 3.5 hours
- USB-C can charge external devices like a power bank
Portable, durable, easy to move
At 23.9 kg, Marshall adds a carry handle and pull wheels for transport. Premium black leather-style wrap with Black & Brass metal details and IP54 dust and splash resistance for outdoor use.
Dimensions: 652 x 413 x 355 mm (25.7 x 16.3 x 14 in)
Wireless and wired connectivity
Wireless:
- Bluetooth 5.3
- Auracast support
- Codecs: SBC, AAC-mpeg 2, LC3
- Multipoint pairing
- Bluetooth range: >70 m in open air
Wired:
- 3.5 mm AUX in/out
- USB-C (digital in + charging)
- RCA line in
- 2 x combo XLR/6.35 mm jacks for microphone or instrument
Physical sound and light controls
The top panel gives direct access to:
- Master volume, bass, and treble
- Per-input volume and effects
- Source selection and sound modes
- Stage light presets (3 built-in modes)
- Battery level and status indicators
The Marshall Bluetooth app adds EQ, firmware updates, and remote device management.
Detailed specifications
SOUND
- Frequency range
- 30 Hz – 20,000 Hz
- Stereo
- Yes
- Max SPL
- 127 dB @ 1 m
- Enclosure
- Closed system
- Driver type
- Dynamic
AMPLIFICATION
- 2 × 100 W Class D for woofers
- 2 × 50 W Class D for midrange
- 4 × 50 W Class D for tweeters
BATTERY & CHARGING
- Playback time
- 40+ hours
- Battery type
- LFP (LiFePO₄), removable
- Fast charge
- 20 minutes for 5 hours playback
- Full charge
- 3.5 hours
- USB-C
- 5 V, 3.0 A in/out
DESIGN & PHYSICAL
- Dimensions
- 652 × 413 × 355 mm
- Weight
- 23.9 kg
- Color
- Black & Brass
- Dust/water
- IP54
- Repairable
- Yes
CONNECTIVITY
- Bluetooth 5.3 + Auracast
- Multipoint Bluetooth
- 3.5 mm AUX in/out
- RCA line in
- USB-C digital in + charge
- 2 × XLR/6.35 mm combo jack
- Bluetooth range: >70 m
PHYSICAL CONTROLS
- Power
- Source select
- Media control
- Master volume
- Bass / Treble
- Input volume 1 / 2
- Input effects
- Light mode
- Battery indicator
IN THE BOX
- Marshall Bromley 750 (battery installed)
- Power cable
- Quick start guide
- Legal and safety documentation
Bromley 750 vs Bromley 450
| Criteria | Bromley 750 | Bromley 450 |
|---|---|---|
| Best for | Larger events, indoor/outdoor | Outdoor parties, carry-by-handle |
| Max SPL | 127 dB @ 1 m (500 W) | 100 dB @ 1 m |
| Weather | IP54 | IP55 |
| Weight | 23.9 kg | 12.32 kg |
| Portability | Handle + wheels | Integrated handle |
| Tone controls | Bass/treble knobs | No physical knobs |
| Stage lights | Yes (3 presets) | Yes (3 modes) |
Frequently asked questions (FAQ)
Can Bromley 750 be used indoors?
What is real-world battery life?
Can I swap batteries on long events?
Does the box include a microphone?
Bromley 750 or Bromley 450?
Can Bromley 750 link to other speakers?
Where to buy authentic Bromley 750?
Conclusion
With Marshall performance tone, bold design, and flexible wired/wireless inputs, Marshall Bromley 750 suits anyone who wants a professional party speaker: loud enough outdoors, refined enough indoors, and mobile enough to follow you with handle and wheels.
Big sound. Big style. Ready to move the crowd.
Marshall Bromley 750 at District M
Compare with Bromley 450 or read the hands-on Bromley 750 article.
