Digital over ear protection

[bewsher500]

I use the Howard Leight Impact Sports, .

they look very useful and sensibly priced at £50

Impact Sport Electronic Earmuff, Folding: Amazon.co.uk: Sports Outdoors

irritates me however when detailing specification shows noise limit levels for one brand and [FONT=Arial, sans-serif]Noise Reduction Rating (NRR) for others making direct comparison almost impossible[/FONT]

[FONT=Arial, sans-serif]82Db sounds a lot for a cut off point. difficult to say what that sounds like in addition to hearing it through the cans[/FONT]
[FONT=Arial, sans-serif]I wonder how hard it would be to offer the user a adjustable cut off point?[/FONT]
[FONT=Arial, sans-serif]surely just a potentiometer away from custom set hearing protection[/FONT]

 

[big ears]

82Db sounds a lot for a cut off point.

82dB is OK. Sound levels about 85dB and above can cause damage but it has to be sustained for hours at this level for permanent damage to occur. If however you have existing damage them even 82dB may feel uncomfortable due to noise sensitivity. The environment in which the noise is also makes a difference. 82dB in a room sounds very different to 82dB outside.