Instruction d'utilisation Crate Amplifiers CA125D

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CA125D
Acoustic Amplifier
User’s Guide

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CA125D Acoustic Amplifier Table of Contents: About the Crate Acoustic CA125D . . . . . . . . . . . . . . . . . 3 The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 The Rear Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 To Eliminate Instrument Feedback . . . . . . . . . . . . . . . . . 6 The DSP Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 The Tilt Back Feature . . . . . . . . . . . . . . . . . . . . . . .

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CA125D Acoustic Amplifier About the Crate Acoustic CA125D: Enough already? Not for us. The CA125D esigned for the performing artist, features Crate’s Digital Signal Processing (DSP) Crate’s CA125D Acoustic Amplifier for a variety of digital reverbs, effects and Dgives you more of what you want. delays specifically designed for acoustic More power. More clarity. More control. And, instruments. more freedom. Imagine: microphone quality sound, without feedback. And without being “chained” to a mic

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CA125D Acoustic Amplifier The Front Panel: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 The Instrument Channel: The Vocal/Aux Channel: 1: Input. The signal output from your acoustic instrument may be connected 15: Low-Z. The signal output from a low impedance microphone may be con- here by means of a shielded instrument cable. nected here by means of a shielded, balanced microphone cable terminated with an XLR connector. The Low-Z jack has 15 volts phantom power 2: Act

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CA125D Acoustic Amplifier The Rear Panel: 36 35 34 33 32 31 30 29 28 28: Footswitch. Connect the supplied two-button footswitch here for 33: Gnd Lift. This switch, when depressed, electronically disconnects the remote on/off control of the internal reverb and chorus. (When con- Low Z Balanced Output jack’s chassis ground connection. If you nected, the footswitch overrides the front panel chorus on/off experience excessive noise when using the Low Z Balanced Output switch.) jack, depress this swi

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CA125D Acoustic Amplifier To Eliminate Instrument Feedback: One of the most common problems encountered when amplifying Chances are, you may not have a problem with feedback at all. In that acoustic instruments, especially in small environments, is feedback. case, leave the CA120D’s Freq and Cut controls fully counter-clockwise. Acoustic instruments typically have inherent qualities which cause reso- However, if you do encounter feedback while playing, set the Cut control nant feedback at specif

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CA125D Acoustic Amplifier The Tilt Back Feature: There are instances when you may need to tilt the amplifier back to better proj- ect its sound towards your ears (as a near- field monitor) or towards your audience (for better coverage). The CA125D features a tilt back device underneath its cabinet for CAUTIONS: this purpose. To utilize this tilt back feature, Avoid trapping your hand under the tilt 1 refer to the illustration below and follow back bar. 2 these simple steps: 1 Carefully lean the

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CA125D Acoustic Amplifier Technical Specifications: Output Power Rating: 125 watts RMS total system power Woofer Amp: 2 x 50 watts RMS @1% THD Tweeter Amp: 25 watts RMS @1% THD Inst. Channel: Low: +/-15dB @ 80Hz Mid: +/-15dB @ 400–1.2kHz (Contour) High: +/-15dB @ 10kHz Input Impedance: 25k ohm (Active), 2.2M ohm (Piezo) Input Sensitivity: 22mV RMS (Active), 9mV RMS (Piezo) Sens. to Eff Send/Line out: 70mV Max Input Signal: 6V RMS (17V peak to peak) Feedback Elimination: Freq: variable from 80Hz