JBL EON15 manual Block Diagram, Loudspeaker Placement and Mounting, OUT INPUT1, MIC INPUT2, Signal

22376 JBL EON15-GA Guide 9/17/02 12:30 PM Page 19

Loudspeaker Placement and Mounting

The following guidelines will help you achieve optimum sound wherever you use your EON loudspeakers:

Raise the speakers as high as possible. For best results try to get the high frequency horn at least 2 to 4 feet above the heads of the audience. If the speakers are too low, the people in the back of the audience will not receive the best quality of sound.

Place the speakers between the microphones and the audience. Feedback occurs when the microphones pick up sound from the speakers and “feed” the sound back through the sound system. If space is limited, point the speakers away from the microphones to reduce feedback.

Locate the speakers away from turntables. Low-frequency feedback occurs when the output of the speaker is picked up by the tone arm of the turntable and is re-amplified. A heavy, solid turntable base and shock mounting can also reduce this type of feedback in DJ applications.

Use more speakers in large or highly reverberant spaces. Spreading speakers throughout these spaces will produce much better sound than trying to compensate with loudness level or equalization. For very long distances, the use of another set of speakers on a delay is recommended.

Stand speakers upright for PA - Tilt the speakers back for stage monitoring. Upright stance provides even coverage over a wide area. EON speakers are also designed with two slanted positions for stage monitoring applications.

OUT

INPUT1

LINE

MIC

MIC

INPUT2

BLOCK DIAGRAM

LOOP

MIX

		SIGNAL
INPUT1	SUM	EQ
		LOW HIGH

PEAK

HPF

LPF

&

DYNAMIC

FILTER

90W

300W

INPUT2

INPUT3

INPUT3

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