Martin Audio – MA900 Amplifier
E
NGLISH
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13.
Unplug this apparatus during lightning storms or when unused for long periods of time.
14.
Do not connect an amplifier output in parallel or series with any other amplifier’s output. Do not connect
the amplifier output to any other voltage source, such as a battery, mains outlet, or power supply,
regardless of whether the amplifier is turned on or off.
15.
Do not run the output of any amplifier back into another channel's input.
16.
Refer all servicing to qualified personnel only. Servicing is required when the apparatus has been
damaged in any way such as:
•
Mains cable, or plug is damaged
•
Liquid has entered the amplifier.
•
An object has fallen into the unit
•
The amplifier has been exposed to rain or moisture
•
The amplifier does not operate normally
•
The amplifier was dropped or the enclosure is damaged
17.
Do not remove top or bottom covers. There are no user serviceable parts inside the amplifier, removal of
the covers will expose hazardous voltages, and may void the warranty.
18.
An experienced person should always supervise inexperienced adults or minors when using professional
audio equipment
3.5
User responsibility
3.5.1
Loudspeaker damage
Your amplifier is very powerful and can be potentially dangerous to both loudspeakers and humans alike.
Many loudspeakers can be easily damaged or destroyed by overpowering, especially with the high power
available from a bridged amplifier. Always check the speaker’s continuous and peak power capabilities.
Even when using the amplifier’s front panel attenuator's to reduce the gain, it is still possible to reach full output
power, if the input signal level is high enough.
3.5.2
Speaker output hazard
Power amplifiers are capable of producing hazardous output voltages. To avoid the risk of electric shock, do
not touch any exposed loudspeaker wiring, when the amplifier is operating. See page 10 Connecting
loudspeakers.
3.5.3
Radio interference
A sample of this product has been tested and complies with the limits for the European Electro Magnetic
Compatibility (EMC) directive. These limits are designed to provide reasonable protection against harmful
interference from electrical equipment. This product uses radio frequency energy and if not used or installed in
accordance with these operating instructions, may cause interference to other equipment, such as radio receivers.
Compliance with the (EMC) directive does not automatically guarantee non- disturbance of susceptible equipment
in close proximity to this amplifier.
If this equipment is suspected of causing interference this can be easily checked by powering the amplifier on and
off and observing the disturbance. The user can correct the interference by one or more of the following measures:
•
Re - orientate or relocate the antenna.
•
Increase the distance between the amplifier and the effected equipment
•
Connect the mains cable to a socket on a different circuit from that to which the affected equipment is
connected.
•
Check if the affected equipment complies with the EMC limits for immunity, (CE-labelled). If not,
address the problem with the manufacturer or supplier. All electrical products sold in the EC must be
approved for immunity against electromagnetic fields, high voltage flashes, and radio interference.
•
Consult your dealer or an experienced engineer/ technician for help.
All material © 2007. Martin Audio Ltd. Subject to change without notice.
