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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