Funktion-one F81 - 5.3 Hearing safety

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Cabling

 Use only Funktion One recommended loudspeaker connectors wired so that the cable

conductors are fully shrouded

 Use the appropriate cable conductor gauge. See section 8

 Ensure that your cables are in good condition and free from damage

 Ensure that there are no loose conductor strands to short out and create a fire hazard

 If you re-use older cables, strip them back a little, wherever possible, to expose clean conductor

ends that are free from corrosion

 Use fire retardant or low emission cables where these have been specified by the contract or by

local safety regulations

Amplification

 We suggest electronically limiting maximum amplifier power of 100W average/ 400W peak

 Remember that heavily clipped signals can double a power amplifier’s output (see appendix A).

If heavily clipped signals are expected due to equipment with inadequate headroom in the signal

path, inexperienced operators etc., set rms and peak output limiter thresholds 3dB below the

loudspeaker’s AES ratings. See section 11

General

 There are no user-serviceable parts inside your F81 system. Do not dismantle the unit

 F81’s are not designed for use in damp conditions and should not be exposed to water

5.3 Hearing safety

Enjoy your system responsibly

Funktion One loudspeaker systems are designed to provide extensive audience coverage at low

distortion and are capable of producing very high near-field sound pressure levels.

The richness and impact of a powerful sound system can be great fun and very exhilarating; but please

enjoy your Funktion One system responsibly by following the advice below...

 Don’t place your ears too close to high power loudspeaker systems. Erroneous patching or un-

muting could generate unexpected and damaging sound pressure levels during set-up.

 Don’t place high power loudspeakers too close to audience members. Individual audience

members should not be exposed to levels significantly greater than the sound operating area

 Wearing ear plugs may be a sensible precaution during system set-ups but remember that you

have a duty of care towards the venue staff and the audience. Mix engineers, DJs, subcontractors

and venue management should avoid making not make system level and equalisation decisions

whilst wearing ear plugs as this could overexpose venue staff or the public in the vicinity

 Hearing loss is cumulative and can result from long-term exposure to sound pressure levels as

low as 85dBA. Installers should consider long-term staff exposure when making high power

loudspeaker placement and aiming decisions. Check the relevant noise exposure/noise at work

regulations and comply with them. If in doubt, seek expert advice