Yamaha AW16G Recording 101 Owner's Manual page 27

TRS: Used to refer to a Tip, Ring, Sleeve cable, connector, or jack. Also known
as balanced 1/4". Inputs 3-8 of the AW16G use TRS jacks.
XLR: Used to refer to a three-prong canon cable, connector, or jack. Inputs 1-2
of the AW16G are XLR inputs.
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