Crate LS3-231 User's Guide

User’s Guidefor theConstant Q Graphic EqualizersCrate Pro Audio’s Live Sound Graphic Equalizers feature constant Q circuits which, unlike inferior bro

APPLICATIONS:SOME METHODS OF CONNECTION (Continued):APPLICATIONS:ROOM EQUALIZATION:Any sound system, whether it is a home stereo, a large sound reinfo

FEEDBACK CONTROL:Feedback can be a major problem in live sound reproduction. Feedback occurs when an outgoing signal findsits way back into the system

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2LS1-131/LS2-215/LS3-231Constant Q Graphic EqualizersCAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENCAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT REMO

3LS1-131/LS2-215/LS3-231Constant Q Graphic EqualizersFigure 1: Constant Q Response:0200 500 1k 2k 5k200 500 1k 2k 5kAmplitude (dB)Frequency (Hz)Inferi

These filters have a relatively low “Q” thus preventing “ringing”. Ringing occurs when a filter instantaneous-ly receives an input signal and hangs on

The LS1-131/LS3-231 both feature variable Low Cut and High Cut controls. The low cut control is notonly useful for subsonic filtering, but provides a

The LS1-131/LS3-231 Front and Rear Panels:NOTE: The LS1-131 is shown; the LS3-231 is identical, except it has two channels, one over the other, in a 2

The LS2-215 Front and Rear Panels:1 - POWER: Use this switch to turn the unit on and off.2 - EQ SLIDERS: Use these slide controls to make adjustments

Using an Equalizer:Mixing and equalizing music requires an experienced ear and knowledge of the different tonal characteristics ofeach instrument. The

Upper-Mid Range: (4kHz-8kHz)This region is the “presence” range which can determinewhether the mix or instrument is “harsh” and “piercing”or “distant”