Tip negative and ring positive 1/4" TRS ? - Gearslutz Apr 16, 2016"Balanced 1/4" Line Input. This jack accepts a male two-conductor 1/4" TS or three-conductor 1/4" TRS connector, wired for either balanced or unbalanced operation. For unbalanced operation with a TS connector, the minus signal is automatically grounded; with a TRS connector you have the option of leaving the minus input open or grounded. Amazon: 1/4-Inch Jack Audio Video Connectors & Adapters GLS Audio 1/4" Locking Coupler Female Dual TS and TRS Plug Jack Adapter - 1/4 inch to 1/4 inch Barrel Dual Stereo and Mono - 4 Pack. 4.8 out of 5 stars 106. Electronics $19 $ 19. 99. Get it as soon as Wed, Aug 14. FREE Shipping on orders over $25 shipped by Amazon.