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signal processing
FX7 Block Diagram
Input
Buffer
Input
Distortion
Multiplex
Compressor
µ Pot
LEDs Switches
Micro
Controller
Attn
Pre-
Emphasis
De-
Emphasis
RAM
A / D DSP D / A Output
Jam-A-Long
Head
Phone
Left
Out
Right
Out
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FX7 owner's manual
DOD FX7 Stereo Amplifier User Manual