1/4 in TRS to XLR3M and XLR3F - Insert Cables | Hosa Cables
Amazon.com: Disino 1/4 inch TRS Stereo Y-Splitter Insert Cable, 1/4 Inch Male Jack to Dual 1/4inch(6.35mm) Male TS Mono Breakout Cable Audio Patch Cord - 6.6 Feet/2 Meters : Electronics
Insert ("Y") Cable - Revelation Cable Company
Amazon.com: tisino 1/4 inch TRS Stereo to Dual 1/4 inch TS Mono Insert Cable Y-Splitter Stereo Breakout Cable Patch Cord - 3.3 feet : Musical Instruments
Q. Should mixer insert connections be balanced or unbalanced?