This handy gadget will allow you to use a central stereo with up to 6 speaker pairs placed around the house.  The input for the SW6MX comes from line level sources.  This just means you take the speaker wires from the back of your stereo, amp, etc. and plug them into the back of the SW6MX . The SW6MX isn't limited to home use.  There are many applications elsewhere.  Anywhere you need selectable speaker pairs set up, this is what you need.

The SSW-ONYX series is designed for use with amplifiers up to 100 watts per channel. The SSW-4MX and 6MX feature spring-loaded screw terminals that accept up to 14 gauge wire. Plug-in, screw terminals make connections secure.
Play speakers individually or in any combination of one to six pairs. The sleek, modern design is housed in a metal case and fits easily into a standard stereo rack or entertainment center.

Features:

• Select and play one to six speaker pairs at a time in any location around the home or office. Play speakers individually or in any combination of pairs.
• Sturdy, metal case construction and sleek design provide an easy installation into any home entertainment system.
• Easy to use One button, two-position switch for each speaker pair. Just press the speaker desired. It's that simple.
• Protection circuitry to protect amplifier from low speaker impedance. Special protection from amplifier overload conditions using auto-reset poly-switches