Coleman Audio LS3 Line Level Selector | Sweetwater
Hosa SLW-333 Audio Switcher | Hosa Cables
Kramer VS-4X Passive Stereo Switch – Thomann United States
HR-DSX4 ‐ Digital Audio Selector - 4x1
Broadcast Tools 4×1 Passive stereo audio switcher/router with mechanical SS 4.1 MLR | RF BroadCast
Amazon.com: TENEALAY 4-Way 3.5mm Stereo Audio Switch Input Signal Source Switcher Selector Splitter Box with line Volume Controller (4 in 1 Out / 1 in 4 Out) -MC41 : Electronics