EAW Loudspeaker's owner manual E a t S i n k Ve n t i l a t i o n, I g n a l L e v e l s

overheat and puts them into a standby mode. When the amplifiers have cooled down to a safe operating temperature, the thermal switch will reset and the loudspeaker will resume normal operation. An amplifier Fault indicator will illuminate if a thermal switch has been activated.

7 . 1 . 4 H e a t S i n k Ve n t i l a t i o n

The amplifiers are convection cooled by a large heat sink on the rear of the enclosure. For efficient cooling, it is important to allow at least six inches of free space all around the heat sink area behind the loudspeaker. Air should be able to flow freely from below the heat sink, up around it, and then above the enclosure.

High ambient temperatures can cause amplifiers to overheat, even when operating well below full output. In such cases, aim a fan at the heat sink area to increase the airflow and thus assist with cooling.

7 . 1 . 5 S t a g e M o n i t o r A p p l i c a t i o n s

If you use the loudspeaker on its side for stage monitor applications for vocal monitoring, we recommended that you use at least a 12 dB per octave HPF (High Pass Filter) on the signal, 90 Hz to 100 Hz being a good guideline. This will allow more power for useful monitor frequencies.

Having one side of the enclosure on the floor does restrict the airflow for cooling the amplifiers. In more extreme ambient temperatures of high level operation, an HPF can reduce unwanted lower frequencies from being amplified. This will reduce the overall power and thus reduce the possibility of overheating the amplifiers.

7 . 1 . 6 S i g n a l L e v e l s

Keep signal levels low enough so that neither the Clip nor Limit Active indicators are blinking frequently or are on continuously. If they are, turn down the input signal level to avoid overheating the amplifiers.

7 . 2 P l a c e m e n t P r e c a u t i o n s F o r A l l L o u d s p e a k e r s

7 . 2 . 1 O u t d o o r We a t h e r P r o t e c t i o n

CAUTION: Do not permanently mount EAW loudspeakers in outdoor environments, unless they are WP versions, normally special ordered. If using powered loudspeakers temporarily outdoors, protect the loudspeaker from moisture. If rain is expected, make sure the loudspeaker is protected by a rain cover.

7 . 2 . 2 M a g n e t i c F i e l d s

Loudspeakers generate magnetic fields, unless specifically designed for audio-visual applications where drivers are magnetically shielded to limit the extent of the magnetic field. Therefore, place a loudspeaker at least 2 ft (0.6 m) or more from any TV set or computer monitor. If it causes distortion or a change in the display color, move it further away. Do not place any audio, video, or computer magnetic media near the loudspeaker as the loudspeaker's magnetic field may damage the data.

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