If your EV ZXA1-90 speaker powers on but makes a ticking, clicking sound, then replacing this board usually fixes the problem - no soldering required!
EV ZXA1 speaker repair
EV ZXA1 input board
EV ZXA1 amplifier board
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TAGS, EV ZXA1 Input/Amplifier PCB Assembly, F01U265596, F01U079336, EV ZXA1 problems, EV ZXA1 noise, EV ZXA1 cuts out, EV ZXA1 clicking, TES# 13375, EV ZXA1-90 input board, EV ZXA1-90 amplifier board, schematic, manual, specs,