Amazon.com: Cubilux Passive 6.35mm Headphones Splitter Box, 1/4” Stereo Multi Audio Distributor, Multiport Quarter Inch TRS TS Aux Splitter for Guitar Signal, Studio Recording, Live Performance, Monitors : Electronics
Speaker Switch Selector Splitter Box 3 In 1 Out Of 1 In 3 Out Eindversterker Audio Schakelaar Verdeelkast - AliExpress
Amazon.com: Cubilux Professional 5-Way 3.5mm AUX Splitter, Aluminum Case 5-Channel 1/8” Stereo Headphone Splitter, Multi-Port TRS Audio Share/Split Box/HUB for Speaker Earphones Laptop PC Smartphone Tablet : Electronics
Y Splitters - - Stereo _ Mono Y Splitter Box - Loop-Master Pedals
I made a balanced TRS to unbalanced RCA + balanced TRS splitter box so I can hook my sub up with my monitors : r/diysound
Amazon.com: Cubilux Passive 6.35mm Headphones Splitter Box, 1/4” Stereo Multi Audio Distributor, Multiport Quarter Inch TRS TS Aux Splitter for Guitar Signal, Studio Recording, Live Performance, Monitors : Electronics
Douk Audio Mini 3-Weg Mono / Stereo 1/4 "6.35Mm Trs Audio Switcher Box Hoofdtelefoon Splitter Voor gitaar Versterker - AliExpress
Amazon.com: Cubilux 5-Way 6.35mm Stereo Audio Splitter with Switch, Passive Multi 1/4” AUX Switcher, Quarter Inch TRS Splitter Box/HUB for Instrument Cable, Headphones, Speaker, Guitar, Keyboard, Pedal : Electronics