Stereo Speaker Selector Switch 2-Way (1 x 2) – FireFold
Amazon.com: Premium 2 Zone Speaker Selector Switch Box, 2 Way Stereo Audio Speaker Switcher Distribution Box for Multi-Channel High Powered Amp A B Switches -SOLUPEAK SP2 : Electronics
2 WAY SPEAKER SWITCH BOX AUDIO SPLITTER SELECTOR FOR 2 PAIRS OF AMP SPEAKER | eBay
2 Way Stereo Audio Speaker Switcher 2 Zone Speaker Selector Distribution for Multi-Channel High Powered Amp A B Switches -SP2 - AliExpress
4 Way Speaker Selector Switch Box Review and Uses, Cheap but Well Made. Stereo HiFi Audio - YouTube
SpeaKa Professional 2 ports Speaker changeover switch built-in volume control Black | Conrad.com