rca plug to 6.3mm mono jack FEV-B118By gerry / February 21, 2021 rca plug to 6.3mm mono jack FEV-B118A. rca plug to 6.3mm mono jack;B. rca plug to 6.3mm stereo jackA. rca plug to 6.3mm mono jack; B. rca plug to 6.3mm stereo jack