Livewire Essential Y-Adapter 1/4" TRS to 1/4" TS Female Black 6 in.

Yes, you were misusing the Livewire Essential Y-Adapter 1/4" TRS to Dual 1/4" TS Female in this scenario. Let’s clarify what's going on: What that adapter is designed for: Splitting a balanced mono signal from a TRS (Tip-Ring-Sleeve) output (like from an audio interface or mixer) into two unbalanced TS (Tip-Sleeve) outputs. Not intended to split stereo TRS into two mono left/right channels. Your specific situation: You're trying to split a stereo signal (TRS = Left and Right channels) from a stereo analog compressor into two mono inputs on a Boss RE-2 Space Echo, which accepts dual mono (left and right input). Why the adapter doesn’t work for this: The Livewire Y-Adapter you mentioned splits balanced mono, not stereo. When used with a stereo TRS signal, it doesn't correctly separate Tip (Left) and Ring (Right) into independent outputs. As a result, you're essentially shorting the left and right channels together or misrouting them, which can cause noise, phase issues, or — as you heard — oscillating hissing. Correct solution: You need a stereo breakout cable like this: 1/4" TRS Male to Dual 1/4" TS Male (Insert-style or stereo breakout cable) Example: Hosa YPP-118 or Hosa STP-201 This cable is designed to split stereo TRS into Left (Tip) and Right (Ring) via two TS jacks.

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