Crate Amplifiers manual System Block Diagram, CA120D Acoustic Amplifier, Channels 1 and

CA120D Acoustic Amplifier

System Block Diagram:

Channels 1 and 2:					effects	master	lineout
phantom
power				peak
low-z
gain			tones
				DSP/eff
high-z				send
		low	mid cntr high
gain
			effects	mode
			send				high-z
							bal
				DSP			line out
							level
				foot
aux in/				switch			low-z
							bal
eff ret
		aux in/	cd				gnd
		eff ret	input
							lift
				gain
							high pass
			feedback				hi-freq
limiter							driver
			filters
			on/off*
level	feedback				power		low pass
		circuit					low-freq
				tweeter	amp		driver
foot	filter	filter		cut
switch*							external
	1	2
							speaker
*NOTE: Feedback circuit activated when footswitch plug is inserted into Feedback Filters Footswitch jack

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