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Фрагмент инструкции
17: External Speaker. Use this jack to connect the amplifier to an external speaker cabinet. This jack is wired in series with the internal speakers which remain active when an external speaker is connected. 18: Feedback Filters Footswitch. Connect the three-button footswitch to this jack for remote control of the feedback filters. The Feedback Filters ON LED (#12, front panel) illuminates and the feedback circuit is activated when a footswitch is connected to this jack. Footswitch button #1 controls Feedback Filter 1, button #2 controls Filter #2. (See illustration below.) Note: This is a STEREO jack: tip = Filter 1, ring = Filter 2, sleeve is ground. Use only a footswitch equipped with a stereo 1/4” plug. 19: DSP A/B Bank Footswitch. Connect the three-button footswitch to this jack for remote control of two DSP settings: 1.With footswitch button #3’s LED illuminated, select one of the DSP settings 2.Step on footswitch button #3 - the LED will go out - select a different DSP setting 3.Step on footswitch button #3 again - the LED illuminates, and the DSP automatically changes back to the setting chosen in step 1. 4.Step on footswitch button #3 again - the LED goes out, and the DSP automatically changes back to the setting chosen in step 2. 20: Effects Aux In/Eff Ret. When using an external signal processor or any line level signal (drum machine, keyboard, etc), connect the output of the device to this jack by means of a shielded signal cable. 21: Effects Send. When using an external signal processor, connect this jack to the input of the effect by means of a shielded signal cable. 22: Line Out Level. Use this control to adjust the output level of the line out signal. (This control works independently from the amplifier’s master level control.) 23: High Z Bal Line Out. Use this jack to connect a high impedance, line level signal to a house sound board, a recording console or an external power amplifier by means of an 1/4” stereo plug-terminated cable. (Ring is signal +, tip is signal -, and sleeve is ground.) 24: Gnd Lift. This switch, when depressed, electronically disconnects both of the Line Out jacks’ (#23, #25) chassis ground connections. If you experience excessive noise when using the Line Out jacks, depress this switch. 25: Low Z Bal Line Out. Use this jack to connect a low impedance, line level signal to a house sound board, a recording console or an external power amplifier by means of an XLR-terminated cable. (Pin 1 is ground, pin 2 is signal +, and pin 3 is signal -.) 26: AC Line Cord (not shown). The grounded power cord should only be plugged into a grounded power outlet that meets all applicable electrical codes and is compatible with the voltage, power and frequency requirements stated on the rear panel. Do not attempt to defeat the safety ground connection! Button #1: Turns Feedback Filter #1 on and off Button #2: Turns Feedback Filter #2 on and off Button #3: Togg es between DSP settings CA6110D Rear Panel: 3 2 1 NOTE: The Feedback circuit is activated when a footswitch is plugged into the Feedback Filters Footswitch jack ----> CA6110D Acoustic Amplifier To Eliminate Instrument Feedback: One of the most common problems encountered when amplifying If you experience feedback while playing, depress the Feedback Filters On acoustic instruments, especially in small environments, is feedback. switch. This actives the automatic feedback control circuit. Depress the Acoustic instruments typically have inherent qualities which cause reso-Feedback Filter 1 switch to isolate and control the offending frequency. If nant feedback at specific frequencies. Instrument tone controls and sound feedback occurs again while the Filter 1 switch is depressed, depress the board equalizers are helpful in getting rid of the problem, but they typi-Filter 2 switch to isolate and control the second offending frequency. cally operate around relatively wide frequency bands. This almost always The LEDs above the switches illuminate when the switches are depressed. means the musician must sacrifice sound quality in his quest to do away When a footswitch is used in the Feefback Filters Footswitch jack (#18), with feedback. But since Crate’s feedback elimination circuit isolates only the ON LED illuminates when the plug is inserted into the jack and the the offending frequency, instrument feedback from the CA6110D can be front panel switches are rendered inoperative. eliminated without affecting the overall sound. The DSP Section: The CA6110D features Crate’s On-Board Digital Signal Processing (DSP) technology that was designed specifically for use with acoustic instruments and vocals. This provides a large selection of digital reverbs, effects and delays. Select the type of effect desired by rotating the Mode control (#13). The effects are described below. When a footswitch is used in the DSP A/B Back Footswitch jack (#19), a separate DSP setting can be stored and recalled for each of the footswitch’s two button positions (L...