Niles RFS-1 controlled RF switcher

Niles SPK-1 Auto 12V 600W Triggered 2-CH Speaker Level A-B Switcher

Niles Audio HDS-6 High Power Multi Speaker Selection Switcher System

Niles Audio APC-1 Current/Voltage Controlled Switcher

Niles SS-4 Speaker Selection System 4-Way Selector Switcher

Niles DPS-1 Manual Speaker/Amplifier A-B Audio Selector Switch Untested

Niles Audio VSA-1 Stereo Audio & Video Switcher *UNTESTED AS IS

A/B A B A+B Stereo Speaker Selector Switch Switcher Combiner 2 Way B-Stock