Based in Norway, DNH have been designing and manufacturing loudspeakers for industrial and commercial application since 1946. Below is a selection of loudspeakers suitable for application where explosion protection is of benefit.
DNH DSP-15EExmN is manufactured from anti-static polyamide and has been designed to be explosion proof. The horn has a rated power output of 25W and a maximum sound pressure level of 106dB at 1W/1m. A U shape bracket with three 7mm diameter fixing holes is provided. DSP-15EExmNT offers 100V line input.
Material: Anti-static polyamide. Colour: Black. IP rating: 66/67. Rated power: 25W. Maximum power: 30W. SPL: 106dB, 1W/1m; 118dB, rated power/1m. Frequency range: 100Hz – 11kHz. Dispersion: 120/37-degree. Weight: 2.2kg. Dimensions (HxWxD): 144 x 170 x 207mm.
DSP-15EExmNL has the same explosion proof attributes as DSP-15EExmN, however it has a longer flare (denoted by the ‘L’). DSP-15EExmNLT has a transformer and therefore is able to operate at 100V.
Material: Anti-static polyamide. Colour: Black. IP rating: 66/67. Rated power: 25W. Maximum power: 30W. SPL: 109dB, 1W/1m; 122dB, rated power/1m. Frequency range: 380Hz – 7kHz. Dispersion: 100/30-degree. Weight: 2.8kg. Dimensions (HxWxD): 200 x 275 x 348mm.
Like DSP-15EExmN, DNH DSP-25EExmN is manufactured from anti-static polyamide and has been designed to be explosion proof. The horn has a rated power output of 25W and a maximum sound pressure level of 108dB at 1W/1m. A U shape bracket with two 7mm diameter fixing holes and a single 10mm diameter fixing hole are provided. DSP-25EExmNT offers 100V line input.
Material: Anti-static polyamide. Colour: Black. IP rating: 66/67. Rated power: 25W. Maximum power: 25W. SPL: 108dB, 1W/1m; 120dB, rated power/1m. Frequency range: 370Hz – 7.5kHz. Dispersion: 98/29-degree. Weight: 4kg. Dimensions (HxWxD): 200 x 275 x 348mm.
DNH HP-20EExIIN is manufactured from anti-static polyamide and has been designed to be explosion proof for zone 2 application. The horn has a rated power output of 20W and a maximum sound pressure level of 110dB at 1W/1m. A U shape bracket with 7mm and 10.5mm diameter fixing hole. HP-20EExIINT offers 100V line input.
Material: Anti-static polyamide. Colour: Black. IP rating: 67. Rated power: 20W. Maximum power: 20W. SPL: 110dB, 1W/1m; 122dB, rated power/1m. Frequency range: 310Hz – 8kHz. Dispersion: 115/25-degree. Weight: 2kg. Dimensions (HxWxD): 237 x 237 x 286mm, excluding bracket.