DIY Audio Electronics from Zynsonix.com: Custom RCA Switch Box for Audio
Looking to find (or make) a compact passive rca audio switcher box | Steve Hoffman Music Forums
Amazon.com: 2-Way RCA Stereo Audio Switch Input Signal Source Switcher Selector Splitter Box(2 in 1 Out / 1 in 2 Out)-RC21 : Electronics
Audiophile Switchbox
Does RCA switcher degrade audio quality? | Headphone Reviews and Discussion - Head-Fi.org
Automatic SPDIF (Optical/RCA) Audio Switch from Beni_Skate on Tindie
Meterk Linepaudio Audio Switcher 3.5Mm 2 In 1 Out / 1 In 2 Out A/B Switch Stereo Audio Splitter Box With No Distortion 3.5Mm Jack For Switching Between Computer Speakers And Headphones - Walmart.com