Hazardous / Ex Speakers

Hazardous / Ex Speakers

Intrinsically safe loudspeakers and hazardous area EX-rated audio solutions are designed to deliver clear, reliable sound where safety is critical. Built to withstand extreme conditions, these explosion-proof horn speakers and aluminium ceiling speakers are chemical-resistant, corrosion-proof, fireproof, and highly durable against water, salt, and chlorine.

Engineered with ATEX and IECEx certifications for Zone 1, Zone 2, Zone 21, and Zone 22 environments, intrinsically safe loudspeakers prevent ignition risks from sparks or heat in atmospheres containing flammable gases or combustible dust.

Available for use on 100-volt line systems with power ratings from 6W to 25W, they ensure high intelligibility for voice announcements while maintaining full system integrity during emergencies.

These robust speakers are ideal for life safety and public address applications in petrochemical plants, oil and gas refineries, pharmaceutical facilities, marine vessels, offshore platforms, and other high-risk industrial or onshore/offshore locations.

Whether you need compact marine horns, long-flare explosion-proof horns, or discreet ceiling speakers, our range provides dependable performance in the most demanding hazardous environments.

When ordinary speakers simply aren't safe enough, choose certified intrinsically safe loudspeakers that protect both people and property while delivering crystal-clear audio. Explore our full selection of ATEX-rated, flameproof, and MED-compliant* hazardous area loudspeakers today.

*Please check individual product descriptions for details of standards and compliance.

Brand
Type
Impedance
Driver Size
Overall Diameter
Colour
IP Rated
Horn Power
Horn Max SPL
Bosch LH2-UC06

Compact marine horn speaker. 6 watts, 100 volt line.
Fire, chemical, corrosion, salt, chlorine and water resistant - IP67 rated.

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List Ex VAT: £107.00
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DNH HS-15EExIINT

Zone 2 explosion proof horn speaker. 15 watts, 100 volt line.

Water resistant, rated IP67.

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List Ex VAT: £450.00
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DNH DSP-15EExmNT

Zones 1, 2, 21, 22 explosion proof horn speaker. 25 watts, 100 volt line.

Waterproof, IP66 / 67.

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List Ex VAT: £547.00
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DNH DSP-15EExmNT-MED IIB

MED compliant, Zone 1 & 21 explosion proof horn speaker. 25 watts, 100 volt line.

Waterproof, IP66 / 67.

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List Ex VAT: £629.00
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DNH DSP-15EExmNLT-MED IIB

MED compliant, Zone 1 & 21 explosion proof horn speaker with long flare. 25 watts, 100 volt line. Gas Group IIB.

Waterproof, IP66 / 67.

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List Ex VAT: £685.00
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DNH DSP-15EExmNLT-MED IIC

MED compliant, Zone 1 & 21 explosion proof horn speaker with long flare. 25 watts, 100 volt line. Gas Group IIC.

Waterproof, IP66 / 67.

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List Ex VAT: £685.00
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DNH BA-56EExeNT-MED

MED compliant & EX rated aluminium ceiling speaker. 5", 6 watts, 100 volt line. Screw fit.
Water resistant, rated IP54.

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List Ex VAT: £777.00
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DNH DSP-15EExmNLTMF-MED IIB

MED compliant, Zone 1 & 21 explosion proof horn speaker with long flare. 25W, 100V. Gas Group IIB. Maintenance free with permanent encapsulated cable. 

Waterproof, IP66 / 67.

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List Ex VAT: £1,053.00
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E2S BExL15

Explosion proof horn speaker. 'Ex d' zone 1, 2, 21 & 22. 15 watts 100 volt line. IP67.
Available in a variety of versions - please contact us for pricing.

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E2S BExL25

Explosion proof horn speaker. 'Ex d' zone 1, 2, 21, & 22. Red. 25 watts 100 volt line. IP67.
Available in a variety of versions - please contact us for pricing.

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FAQs

What are hazardous area or Ex-rated loudspeakers?

They are PA loudspeakers certified for use where flammable gas or combustible dust may be present. Ordinary commercial speakers are not acceptable in those atmospheres due to potential microscopic electrical sparks at wire connections, switches, or terminals during normal operation or because of minor internal faults. This range covers explosion-protected horns and aluminium ceiling speakers for life-safety and public-address use.

Why can’t I use a standard IP-rated outdoor speaker in a hazardous area?

IP rating only describes dust and water ingress. It does not certify that the speaker will not become an ignition source. Ex-rated models carry ATEX and/or IECEx approval for defined zones. An IP65 patio cabinet is not a substitute for a Zone 1 or Zone 21 loudspeaker.

What do ATEX and IECEx mean on a loudspeaker?

They are the main certification schemes for equipment in explosive atmospheres (ATEX for Europe, IECEx for many international projects). The certificate defines the protection concept, gas or dust group and temperature class. Always match the speaker’s marking to the site’s hazardous-area classification — and check the individual product page for the exact standards.

Which hazardous zones are these speakers designed for?

Products in this range are offered for Zone 1 and Zone 2 (gas) and Zone 21 and Zone 22 (dust), depending on the model. The zone is set by the site’s hazardous-area assessment, not by the audio installer alone. Specify the zone, gas group and temperature class before you select a horn or ceiling speaker.

Are hazardous area speakers 100V line?

Yes. Typical ratings here are 6 W to 25 W on 100V line, so they integrate with industrial PA and voice-alarm amplifiers. Size the taps and cable as you would any 100V circuit, using hardware and glands approved for that location.

Should I specify an Ex horn or an Ex ceiling speaker?

Horns give high output and throw for plant areas, yards and offshore decks. Aluminium Ex ceiling speakers suit indoor process or marine spaces where a horn would be too harsh or visually intrusive. Music quality is secondary; speech intelligibility and certification come first.

What is a MED-compliant hazardous area loudspeaker?

MED (Marine Equipment Directive) versions are intended for vessels and offshore installations that need marine type approval as well as Ex certification. Use them where the specification calls for both, such as ship PA and certain platform systems. Confirm MED marking on the product page.

Are Ex loudspeakers weatherproof as well as explosion-protected?

Most horns in this range are also highly weather-sealed (typically IP66/IP67) and built from corrosion-resistant materials for chemical, salt and offshore exposure. Ceiling types may have a lower IP rating and belong indoors. Treat weather and Ex certification as two separate requirements that both must be met.

Who should specify and install hazardous area loudspeakers?

The hazardous-area classification and equipment selection should be agreed with the site’s responsible engineer and a competent installer familiar with ATEX/IECEx practice. Audio coverage still matters, but the certificate and zone matching come before brand preference.

Who can help me choose Ex-rated speakers for a plant or marine project?

Commercial Audio Solutions supplies certified Bosch, DNH and E2S hazardous-area loudspeakers and can help match zone, gas group and 100V load. Call 01663 767888 or email sales@commercialaudiosolutions.com with the zone drawing or specification before you order.