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  3. BOOMBOX 4 vs PARTYBOX 520

JBL BOOMBOX 4 vs JBL PARTYBOX 520

What BOOMBOX 4 does better (3) and where PARTYBOX 520 wins (0) — every spec side by side.

JBL BOOMBOX 4
JBL · 2026BOOMBOX 4
3 advantages≈ $460
vs
JBL PARTYBOX 520
JBL · 2025PARTYBOX 520
0 advantages≈ $800
9.6Build & features3.0
Dimensions

Size comparison

BOOMBOX 4PARTYBOX 520
510 × 260210415 × 769369
BOOMBOX 4PARTYBOX 520Difference
Height260 mm769 mm−509 mm
Width510 mm415 mm+95 mm
Depth210 mm369 mm−159 mm

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

Why is BOOMBOX 4 better than PARTYBOX 520?

  1. Battery life34 h vs 15 h2.3×
  2. Water resistance (IPx)IPx8 vs IPx42×
  3. Lowest frequency37 Hz vs 40 Hz+8%

Why is PARTYBOX 520 better than BOOMBOX 4?

PARTYBOX 520 has no measurable advantages in this pair.

Specifications

Side by side

Sound
Output power—400 W
Lowest frequency37 Hz40 Hz
Highest frequency20,000 Hz20,000 Hz
Battery & charging
Battery life34 h15 h
Mains poweredYesYes
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version5.45.4
USB audioYesYes
3.5 mm jack / AUX—Yes
Design & build
Width510 mm415 mm
Height260 mm769 mm
Depth210 mm369 mm
Protection ratingIP68IPX4
Water resistance (IPx)IPx8IPx4
Dust protection (IP)6—
Features
Party / stereo pairingYesYes
Light effects—Yes
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