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Crate Acoustic CA120D User Manual

Crate Acoustic CA120D
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CA120D
Acoustic Amplifier
Users Guide
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Crate Acoustic CA120D Specifications

Power Output IconPower Output
output power rating120 watts @ <1% THD
Channel Specifications IconChannel Specifications
low frequency adjustment+/-15dB @ 80Hz
mid frequency adjustment+15, -30dB from 450Hz – 1.2kHz
high frequency adjustment+/-15dB @ 10kHz
Input Specifications IconInput Specifications
input impedance high-Z3.3M ohm
input impedance low-Z3k ohm
input sensitivity high-Z5mV
input sensitivity low-Z2mV
CD Input Specifications IconCD Input Specifications
cd input impedance22k ohm
cd input sensitivity150mV
cd max input signal6V RMS (17V peak to peak)
Power Requirements IconPower Requirements
power requirements for 120VAC160VA
power requirements for 100/115VAC160VA
power requirements for 230VAC160VA
Size and Weight IconSize and Weight
height18”
width17-1/2”
depth15-1/2”
weight45 lbs

Summary

Important Safety Instructions

General Safety Precautions

Essential guidelines for safe operation, handling, and maintenance to prevent fire, shock, and injury.

About the Crate Acoustic CA120D Amplifier

Amplifier Features and Design

Details on the amplifier's power, clarity, control options, DSP, and build quality for performing artists.

The Front Panel Controls

Channel Input and Gain Controls

Controls for microphone and instrument input levels, including Low-Z, High-Z, Gain, and Peak LED.

Channel Tone and EQ

Adjusts bass, midrange, and treble frequencies for each channel using Low, Mid, Contour, and High controls.

Master, Effects, and CD Input Controls

Manages overall output, external inputs, effects processing, feedback filters, and tweeter level.

The Rear Panel Connections

Power and Speaker Outputs

Includes power switch, AC line cord connection, and external speaker jack for expanding sound.

Footswitch and Effects I/O

Connects footswitches for effects control and interfaces for external signal processors.

Line Outputs and Grounding Options

Provides balanced line-level outputs and a ground lift switch for versatile connectivity.

Eliminating Instrument Feedback

Using the Feedback Filters

Guide on activating and using the automatic feedback elimination circuitry to isolate offending frequencies.

The DSP Section

Digital Signal Processing Effects

Overview of DSP technology and a list of available digital effects, including reverbs, delays, and chorus.

System Block Diagram

Signal Flow Overview

Illustrates the internal signal path from inputs through processing to outputs.

Technical Specifications

Amplifier Performance Metrics

Detailed specifications for output power, input impedance, sensitivity, and frequency response.

Component and Electrical Details

Information on internal woofer, tweeter, crossover, power requirements, and physical dimensions.

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