
Tribit StormBox Blast
Score: 84/100
Marshall Kilburn III
Score: 83/100Rankings

The Tribit StormBox Blast is a powerful 90 W RMS boombox with 30 hours of battery, LED party lighting, and IPX7 waterproofing for outdoor events. Its heavyweight design and absence of a microphone limit portability and call functionality. Suited for party hosts and outdoor enthusiasts needing loud, visual-rich sound.

The Marshall Kilburn III is a premium portable Bluetooth speaker delivering 50 W of tri-amp power and up to 50 hours of playback, highlighted by its robust IP54 construction and analog controls. Its considerable weight of 2.8 kg and ambiguous power-bank functionality are notable trade-offs. Ideal for users seeking loud, long-lasting sound in a durable, amp-styled design.
| Attribute | ![]() | ![]() |
|---|---|---|
30 hours | 50 hoursbest | |
| ↓ lower better | 5,448 g | 2,800 gbest |
— | 101.6 mmbest | |
90 Wbest | 50 W | |
40 mbest | 10 m | |
| ↓ lower better | — | 180 minutesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 30 hours | 50 hours |
Audio(1) | ||
Output Power (W) | 90 W | 50 W |
Connectivity(1) | ||
Bluetooth Range (m) | 40 m | 10 m |
Build & Design(3) | ||
Weight (g) | 5448 g | 2800 g |
Dimensions (H×W×D) (mm) | 4050×2260×1629 mm mm | 273 × 150 × 169 mm mm |
IP Rating | IPX7 | IP54 |

Products in the top-left offer the best value (high score, low price).

Professional reviewers consistently praise the StormBox Blast for its massive output, robust bass, long battery life, and rugged IPX7 build, noting the added value of the app-driven EQ and synchronized LED lights. However, they point out its heavyweight, limited low-end depth, lack of advanced codecs, and missing voice-assistant or microphone features as notable drawbacks.
Everyday users echo the experts' enthusiasm for the speaker's monster loudness, thumping bass, all-day battery, and party-ready lighting, while frequently mentioning the bulkiness, absence of deep sub-bass, and missing call functionality as common pain points.


Professional reviewers commend the Kilburn III for its tri-amp 50 W output, 360° stereophonic sound, long-lasting 50+ hour battery and rugged IP54 build, while noting its relatively heavy 2.8 kg chassis and the ambiguous claim of a built-in power bank as drawbacks.
Everyday users love the extended battery life, Marshall-styled sound and durable IP54 design, frequently mentioning the convenient analog controls and easy multipoint pairing, but they commonly criticize the speaker's heft and the lack of a reliable phone-charging USB output.