Low profile speaker selector unit that allows for distribution of high level (amplified) stereo signals into four zones.
Features a manually activated impedance protection circuit that can be activated to prevent the impedance to a receiver, this protection keeps the receiver from dropping below 5 Ohms, regardless of the impedance rating of the speakers utilized
Impedance protection can also be de-activated, allowing for part of a planned system of impedance with matching volume controls, resulting in great sound quality in every zone.-
Two Sets of Electrical Safety Devices for Safeguarding the Stereo Amplifier have been Installed to Protect the Stereo Amplifier Against Shorting of Lines and/or Open Speaker Connectors