Check the listing for details. Audtek SSW-8 Speaker Selector Switch Impedance Matching 1 In 8 Out. Condition: New. Listed at 46.93 USD. The Audtek SSW-8 low-profile speaker selector box allows you to distribute a stereo amplifier to eight separate zones. Accepting stereo speaker-level (amplified) signal, the SSW-8 provides up to 200 WPC for your zones. Front plate zone selection buttons make it easy to turn zones on and off. _x000D_ _x000D_ Including a manually activated impedance protection circuit that can be turned ON, the SSW-8 prevents the impedance to your amplifier from dropping below an unsafe level of 5 ohms. The protection circuit ensures proper performance regardless of the number and impedance ratings of your speakers. The protector switch can also be turned off when used as part of a planned system of impedance matching volume controls, allowing you to get most out of your amplifier. _x000D_ _x000D_ Specifications: _x000D_ • Output zones: 8 x Stereo _x000D_ • Protection circuit resistors: 3 x 10 ohm/15 WPC _x000D_ • Power handling (protection on): 100 WPC _x000D_ • Power handling (protection off): 200 WPC _x000D_ • Input connections: 1 x high-level with push-pin terminals (up to 14 AWG) _x000D_ • Output connections: 4 x push-pin terminals (up to 14 AWG) _x000D_ • Dimensions: 17" x 4.4" x 1.9" _x000D_