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This is the first chair. Step 2: Connect one end of RCA cord (3b) into RCA OUTPUT (F) of first BoomChair®. Step 3: Connect other end of RCA cord (3b) into RCA INPUT (G) of second BoomChair®. Step 4: Turn all Boomchairs® on by turning Power knob (C) clockwise. Repeat steps 2 and 3 from second chair to connect more BoomChairs®. Up to 4 chairs can be connected. POWERINPUTOUTPUTRRLLVIBRATION+ BASS/TREBLE+ VOLUME+ POWERINPUTOUTPUTRRLLVIBRATION+ BASS/TREBLE+ VOLUME+ 3b Media Device TROUBLESHOOTING BOO