Soundcraft MSB-32 Cat5 Mini Stagebox 32 (3U) [8/20] Working safely with sound

Soundcraft Mini Stagebox 32 User/Installation Guide 05148

WORKING SAFELY WITH SOUND

Although your new unit will not make any noise until you feed it signals, it has

the capability to produce sounds which when monitored through a PA system or

headphones can damage hearing over time.

The table below is taken from the Occupational Safety & Health Administration

directive on occupational noise exposure (1926.52):

PERMISSIBLE NOISE EXPOSURE

DURATION PER DAY,

HOURS

SOUND LEVEL dBA

SLOW RESPONSE

8 90

6 92

4 95

3 97

2 100

1.5 102

1 105

0.5 110

<0.25 115

Conforming to this directive will minimise the risk of hearing damage caused by

long listening periods. A simple rule to follow is — the longer you listen, the lower

the average volume should be.

Please take care when working with your audio. If you are manipulating controls

which you don’t understand (which we all do when we are learning), make sure your

monitors are turned down. Remember that your ears are the most important tool of

your trade, look after them, and they will look after you.

Most importantly — don’t be afraid to experiment to nd out how each parameter

affects the sound — this will extend your creativity and help you to get the best

results.

Recommended headphone impedance is 50-600 ohms.