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  3. BandBox Trio vs Bromley 750

JBL BandBox Trio vs Marshall Bromley 750

What BandBox Trio does better (0) and where Bromley 750 wins (3) — every spec side by side.

JBL BandBox Trio
JBL · 2026BandBox Trio
0 advantages≈ $800
vs
Marshall Bromley 750
Marshall · 2025Bromley 750
7.2Score
3 advantages≈ $1,100
Higher score
3.7Battery8.4
Dimensions

Size comparison

BandBox TrioBromley 750
344 × 265228413 × 652355
BandBox TrioBromley 750Difference
Height265 mm652 mm−387 mm
Width344 mm413 mm−69 mm
Depth228 mm355 mm−127 mm

Drawn to the same scale from the official dimensions (front and side).

Why is BandBox Trio better than Bromley 750?

BandBox Trio has no measurable advantages in this pair.

Why is Bromley 750 better than BandBox Trio?

  1. Battery life10 h vs 40 h4×
  2. Output power135 W vs 500 W3.7×
  3. Lowest frequency50 Hz vs 20 Hz2.5×
Specifications

Side by side

Sound
Driver type—Dynamic
Driver size—254 mm
Number of drivers—4
Output power135 W500 W
Lowest frequency50 Hz20 Hz
Highest frequency20,000 Hz20,000 Hz
Hi-Res AudioYes—
Adjustable equaliser—Yes
Battery & charging
Battery life10 h40 h
Charging time—3.5 h
Fast charging support—Yes
Power bank functionYesYes
Mains powered—No
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version5.45.3
Bluetooth codecs—LC3, AAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)—No
aptX—No
LDAC—No
Multipoint (two devices)—Yes
LE Audio—Yes
Auracast—Yes
USB-C—Yes
USB audioYes—
3.5 mm jack / AUXYes—
Design & build
Weight—23,900 g
Width344 mm413 mm
Height265 mm652 mm
Depth228 mm355 mm
Protection rating—IP54
Water resistance (IPx)—IPx4
Dust protection (IP)—5
Colours—Black
Features
Hands-free calls—Yes
Party / stereo pairing—Yes
Light effects—Yes
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