190 dBA |
Heavy weapons, 10 m behind the weapon (maximum level) |
180 dBA |
Toy pistol fired close to ear (maximum level) |
170 dBA |
Slap on the ear, banger firework explodes on shoulder, small arms
at a distance of 50 cm (maximum level) |
160 dBA |
Hammer stroke on brass tubing or steel plate at 1 m distance,
airbag deployment very close at a distance of 30 cm (maximum level) |
150 dBA |
Hammer stroke in a smithy at 5 m distance (maximum level) |
140 dBA |
Even short term exposure can cause permanent damage - Loudest recommended exposure WITH hearing protection. The rig below hit 139.1 dBA at 3M (10ft) |
130 dBA |
The level Megasong can easily achieve if required. During tests we measured peaks over 133dBA at 10M (a bit over 30ft) using a 6KW rig. Obviously we would not use this amount of power with an audience in range, we just had to see what we could deliver without really trying! This was using just 8 speakers set-up on 4 1500W amps at an indoor venue. |
120 dBA |
Whistle at 1 m distance, test run of a jet at 15 m distance |
|
Threshold of pain, above this fast-acting hearing damage is possible |
115 dBA |
Jet plane take off at 10 m distance, Loud Rock Concert |
110 dBA |
Siren at 10 m distance, frequent sound level in discos and close
to loudspeakers at rock concerts. |
105 dBA |
Chain saw at 1 m distance, banging car door at 1 m distance (maximum level),
racing car at 40 m distance, possible level with music head phones |
100 dBA |
Frequent level with music via head phones, jack hammer at 10 m distance |
95 dBA |
Loud crying, hand circular saw at 1 m distance |
90 dBA |
Angle grinder outside at 1 m distance |
|
Over this level prolonged exposure can cause permanent hearing damage. |
85 dBA |
2-stroke chain-saw at 10 m distance, loud WC flush at 1 m distance |
80 dBA |
Very loud traffic noise, passing lorries at 7.5 m distance,
high traffic on a motorway at 25 m distance |
75 dBA |
Passing car at 7.5 m distance, un-silenced wood shredder at 10 m distance |
70 dBA |
Level close to a main road by day, quiet hair dryer at 1 m distance to ear |
65 dBA |
Normal conversation |
60 dBA |
Lawn mower at 10 m distance |
55 dBA |
Low volume of radio or TV at 1 m distance, noisy vacuum cleaner at
10 m distance |
50 dBA |
Refrigerator at 1 m distance, bird twitter outside at 15 m distance |
45 dBA |
Noise of normal living |
40 dBA |
Above this level distraction when learning or concentrating is possible |
35 dBA |
Very quiet room fan at low speed at 1 m distance |
25 dBA |
Sound of breathing at 1 m distance |
0 dBA |
Auditory threshold |