User Manual
5
ENGLISH
10. Mechanical and electrical factors need to be considered when installing
professional audio systems (in addition to those which are strictly acoustic,
such as sound pressure, angles of coverage, frequency response, etc.).
11. Hearing loss
Exposure to high sound levels can cause permanent hearing loss. The acoustic
pressure level that leads to hearing loss is different from person to person
and depends on the duration of exposure.
To prevent potentially dangerous exposure to high levels of acoustic pressure,
anyone who is exposed to these levels should use adequate protection
devices.
When a transducer capable of producing high sound levels is being used, it is
necessary to wear ear plugs or protective earphones.
See the technical specications in this user manual to know the maximum
sound pressure of each speaker.
12. To ensure a correct sound reproduction, speaker phase is to be respected
(speakers are connected respecting the amplier polarity).
This is important when speakers are installed adjacent one another, for
instance, in the same room.
Make sure speaker lines are not shorted before turning the amplier on.
13. To prevent inductive effects from causing hum, noise and a bad system
working, speaker lines should not be laid together with other electric cables
(mains), microphone or line level signal cables connected to amplier inputs.
14. Speaker cables shall have wires with a suitable section (twisted, if
possible, to reduce inductive effects due to surrounding electro-magnetic
elds) and a sufcient electrical insulation.
Refer to local regulations since there may be additional requirements about
cable characteristics.
15. Install every speaker far away from any heat source.
16. Do not use solvents, alcohol, benzene or other volatile substances for
cleaning the external parts. Use a dry cloth instead.