DNH
Company Overview
DNH (Den Norske Høyttalerfabrikk) is a highly specialized Norwegian manufacturer of loudspeakers designed for the most extreme environments on earth. Rather than focusing on concert audio, DNH builds ruggedized, explosion-proof, and weatherproof speakers for maritime vessels, oil rigs, sub-sea operations, and heavy industrial public address systems.
Core Audio Innovations
ATEX / EX Explosion Proof
DNH manufactures specialized horn speakers certified for explosive environments (oil rigs, chemical plants) where a single electrical spark could be catastrophic.
Subsea / Clean Room Speakers
Speakers built with non-corrosive, marine-grade alloys capable of operating entirely underwater, or in hyper-sterile medical clean rooms.
EN54-24 Voice Alarm Compliance
Fire-resistant loudspeakers designed to continue operating and broadcasting evacuation instructions even while engulfed in flames.
Featured Solutions
DSP-15EExmN (Explosion Proof Horn)
An ATEX-certified, anti-static plastic horn loudspeaker designed specifically for Zone 1 hazardous areas on offshore platforms.
Aqua-30 (Underwater Speaker)
A completely sealed, high-fidelity underwater loudspeaker used in synchronized swimming, naval training, and luxury resort pools.
SAFE-561T (Fire Resistant)
An EN54-24 certified ceiling speaker featuring a steel fire dome and ceramic terminal blocks to survive intense structural fires.
Ideal Industry Deployments
Offshore Oil & Gas Rigs
Marine & Naval Vessels
Underwater Acoustics
Heavy Industrial PA
