Knowing Your Mixer; Source; Zones; Volume - JBL CS Commercial Solution CSM-21 User Manual

5.0 Knowing Your Mixer

5.1 Source

What is a Source? This is a line-level input signal such as programmed music, CD player, VCR/DVD,
satellite feed, tape player, radio, message repeater, or juke box. These sources are then equalized,
dynamically controlled, and routed by your selections and priorities on the mixer.

5.2 Zones

What is a zone? This is the area where you wish the signal to be heard. The mixer outputs a stereo or
mono signal to your chosen zone. A built-in crossover and subwoofer output allows you to include a
subwoofer in each zone, if desired. This allows you to attain the wide bandwidth sound your patrons are
used to hearing.

5.3 Volume

What is a good volume? Determining a good volume is a balance of art and science. You need maximum
coverage without interfering with the workplace environment or customer comfort and communication.
The mixer gives you the tools you need in the form of AutoWarmth™ and LevelGuard™ to get the best
sound quality from the volume that each application requires. Once you have set your volume preferences,
AutoWarmth™ and LevelGuard™ help you keep it that way.

5.4 AutoWarmth™

What is AutoWarmth™? In its simplest terms JBL's AutoWarmth™ can be thought of as being similar to
the "loudness" control on a home stereo, except its actual functions are considerably more complex.
AutoWarmth™ operates on a variable basis, automatically making the proper adjustments to maintain an
even tonal perception. This function constantly adjusts for the ear's tendency to hear less low frequencies
at low volumes, and more low frequencies at high volumes. AutoWarmth™ automatically ensures full
music fidelity at all volumes.

5.5 LevelGuard™

What is LevelGuard™? The LevelGuard™ feature helps keep the volumes of various sources consistent
by sensing the level of the incoming audio source and automatically processing the signal to a user
selected preference.
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