Peavey QF131 - Manual (Page 6)

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(8) TRS BALANCED OUTPUT
These 1/4" Tip/Ring/Sleeve (stereo) jacks provide balanced output when used with TRS
connectors and 2-conductor shielded cables. When used with a mono 1/4" (TS) phone plug,
the output is unbalanced.
(9) XLR OUTPUT
These male 3-pin connectors provide balanced output when used with female XLR
connectors.
(10) TRS BALANCED INPUT
These1/4" Tip/Ring/Sleeve (stereo) jacks provide balanced input when used with TRS
connectors and 2-conductor shielded cables. When used with mono 1/4" (TS) phone plugs,
the input is unbalanced.
(11) XLR INPUT
These female 3-pin connectors provide balanced input when used with male XLR connectors.