Crate Acoustic CA120D manual

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Table of contents for the manual

  • Page 1

    CA120D Acoustic Amplifier User ’ s Guide[...]

  • Page 2

    CA120D Acoustic Amplifier T able of Contents: IMPORT ANT SAFETY INSTRUCTIONS • READ, FOLLOW , HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS. • DO NOT OPERA TE NEAR ANY HEA T SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APP ARA TUS. FOR PROPER OPERA TION, THIS UNIT REQUIRES 3” (75CM) OF WELL VENTILA TED SP ACE AROUND HEA TSINKS AND [...]

  • Page 3

    CA120D Acoustic Amplifier 3 About the Crate Acoustic CA120D: D esigned for the performing artist, Crate’s CA120D Acoustic Amplifier gives you more of what you want. More power . More clarity . Mor e control. And, more fr eedom. Imagine: microphone quality sound, without feedback. And without being “chained” to a mic stand! More power: a 120 w[...]

  • Page 4

    CA120D Acoustic Amplifier 4 1 15 16 17 18 2 4 6 7 8 9 10 11 12 13 14 5 3 NOTE: Channel 1 and Channel 2 ar e independent of each other up to the Ef fects and Master sections. The text below (#1–10) applies to both channels. 1: Low-Z. The signal from a low impedance micr ophone may be con- nected here by means of a shielded, balanced micr ophone ca[...]

  • Page 5

    CA120D Acoustic Amplifier 5 19 20 21 22 23 24 25 26 27 28 29 The Rear Panel: 19: Power . Use this switch to turn the amplifier on (top of the switch depressed) and of f (bottom of the switch depressed.) The power switch illuminates when the amplifier is on. 20: AC Line Cord. The grounded power cord should only be plugged into a grounded power outle[...]

  • Page 6

    CA120D Acoustic Amplifier 6 One of the most common problems encounter ed when amplifying acoustic instruments, especially in small envir onments, is feedback. Acoustic instruments typically have inher ent qualities which cause reso- nant feedback at specific frequencies. Instr ument tone controls and sound board equalizers ar e helpful in getting r[...]

  • Page 7

    CA120D Acoustic Amplifier 7 Channels 1 and 2: low-z high-z low mid cntr peak effects master line out high DSP/eff send phantom power tones gain gain aux in/ eff ret effects send aux in/ eff ret foot switch DSP mode gain cd input low-z bal gnd lift high-z bal line out level external speaker level foot switch* *NOTE: Feedback circuit activated when f[...]

  • Page 8

    www .crateamps.com ©2004 SLM Electronics A Division of St. Louis Music Co. 1400 Ferguson Avenue St. Louis, MO 63133 47-942-01 • 021604 CA120D Acoustic Amplifier Output Power Rating: 120 watts @ <1% THD Channels 1 & 2: Low: +/-15dB @ 80Hz Mid: +15, -30dBdB from 450Hz – 1.2kHz (Contour) High: +/-15dB @ 10kHz Input Impedance: 3.3M ohm High[...]