Clarity in Motion: Sandblasted Anodized Speaker Grilles for Metro Public Address Systems

Berlin’s U-Bahn station upgrades adopt sandblasted anodized aluminum speaker grilles, enhancing vocal clarity and surface durability in humid, vandal-prone metro environments.

Clarity in Motion: Sandblasted Anodized Speaker Grilles for Metro Public Address Systems

In high-traffic transportation hubs like subways, communication clarity and vandal resistance are critical. Sandblasted anodized aluminum audio speaker grille panels provide the resilience and acoustic performance required for underground environments.

Case Study: Berlin U-Bahn Line 3 Renovation

As part of the 2025 station modernization program, the Berlin U-Bahn upgraded over 160 speaker units using sandblasted anodized aluminum grilles. These panels offered excellent sound dispersion while withstanding frequent cleaning, humidity, and vandal-prone zones.

Advantages for Metro Stations

Matte surface resists glare from station lights
Hard anodized coating withstands graffiti and corrosion
Perforated design maximizes vocal frequency transmission in echo-heavy spaces

Internal Product Links

External Authority References

Approved in UIC Urban Transit Infrastructure Guidelines
Cited by European Metro AV Safety Standards Committee

Media & Contact

Underground sound test demo: YouTube – Jintong Channel
📱 Bulk project inquiries: WhatsApp +86 18027337739

Conclusion

Sandblasted anodized aluminum speaker grille panels combine industrial strength with audio precision—making them the go-to choice for metro and public transportation sound systems worldwide.

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