Best-in-class acoustic filters for general use
General & event use
DR Series
Offering exceptional noise reduction in a discreet miniature package, the DR Series has been designed specifically for general use. Common industrial earplugs tend to provide too much attenuation where it is not needed, this is due to the use of cheap materials and little acoustic design. The resulting response is muffled speech and sounds.
The material of the ventilation filter ensures the user that air is constantly circulating in the ear, this ventilation reduces the effect of occlusion and irritation in the ear canal, maximizing the comfort of the user, limiting the causes of inflammation and infection. The DR 20 Gray has an SNR value of 19 dB providing high attenuation levels, suitable for music concerts or noisy environments with SPL up to 104 dB.
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The DR range of acoustic filters have been developed for use in custom ear tips (soft or hard) and universal earplugs. The DR filter is fully interchangeable with the DM and DI filter series and DS headphones from Jiholabo.
Attenuation is calculated in accordance with CE EN-352-2 by ISO 4869.2 for high (H), medium (M), low (L) frequency levels and as a single numeric rating (SNR). The NRR is calculated according to ANSI S3.19-1974. Certified filters in custom tips can achieve different attenuation values depending on the fit and / or shape of the acoustic channel.
Black, white, transparent, transparent gray, transparent blue, brown, pink, orange, yellow, green.
