Crate LS1-131 - Manuals - manualsarea.com

Page 2 - Constant Q Graphic Equalizers; CAUTION; Congratulations

2 LS1-131/LS2-215/LS3-231 Constant Q Graphic Equalizers CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. ATTENTION RISQUE D'ELECTROCUTION NE PAS OUVRIR ATTE...

Page 3 - An Introduction to Equalizers:; Some features of these equalizers include:

3 LS1-131/LS2-215/LS3-231 Constant Q Graphic Equalizers Figure 1: Constant Q Response: 0 200 500 1k 2k 5k 200 500 1k 2k 5k Amplitude (dB) Frequency (Hz) Inferior broad band filters: width of filter changes with amplitude. 0 200 500 1k 2k 5k 200 500 1k 2k 5k Amplitude (dB) Frequency (Hz) ƒ L ƒ L = lo...

Page 6 - Be sure to match the voltage selector

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 rack-space enclosure. 1 - POWER: Use this switch to turn the unit on and off. 2 - EQ SLIDERS: Use these slide controls to make adjustments at the st...

Page 8 - Figure 5: Frequency Range Comparison Chart:

Using an Equalizer: Mixing and equalizing music requires an experienced ear and knowledge of the different tonal characteristics of each instrument. The voice characteristics of some common instruments are compared to a conventional 88-notepiano keyboard in figure 5 below. As indicated on the chart,...

Page 9 - SOME METHODS OF CONNECTION:; SOURCE

Upper-Mid Range: (4kHz-8kHz) This region is the “presence” range which can determinewhether the mix or instrument is “harsh” and “piercing”or “distant” and “muffled”. This range will also helpvoices and other instruments cut through a mix whenboosted. When high frequency “feedback” occurs, thisregio...

Page 10 - EQUALIZER

APPLICATIONS: SOME METHODS OF CONNECTION (Continued): APPLICATIONS: ROOM EQUALIZATION: Any sound system, whether it is a home stereo, a large sound reinforcement system, or recording studio moni- tors, will vary in its perceived reproduction depending on its environment; its room. When sound is prod...

Page 11 - CREATIVE OR ENHANCEMENT EQUALIZATION:; “hall” you’ve selected, offering greater versatility.

FEEDBACK CONTROL: Feedback can be a major problem in live sound reproduction. Feedback occurs when an outgoing signal finds its way back into the system via a microphone or a guitar pickup and gets re-amplified. The outgoing signal is thetransmitter and the microphone or pickup is the receiver. The ...

Page 12 - Technical Specifications; contained herein are subject to change without notice.

www.crateamps.com ©1999 SLM Electronics, Inc. • A Division of St. Louis Music, Inc. 1400 Ferguson Avenue • St. Louis, MO 63133 47-056-01 • 05/99 LS1-131/LS2-215/LS3-231 Constant Q Graphic Equalizers Technical Specifications Due to ongoing product development and improvement, the specifications conta...