This handy gadget will allow you to use a central stereo with up to 4 speaker pairs placed around the house.  You can turn each set of speakers on and off, and adjust the volume for each one as well.  The input for the SSWL4EX comes from up to two 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 SSSWL4EX.  If you have two sources (a stereo and a PC for instance) you can connect both to the back of the unit.  Each speaker pair is switchable between the two sources!  The SSWL4EX isn't limited to home use.  There are many applications elsewhere.  Anywhere you need selectable speaker pairs set up, this is what you need.

Features:

• Accepts up to 14 gauge speaker wire
• Frequency response: 20 Hz to 20 kHz
• Auto transformer impedance protection
• 11 step individual volume control
• Usable with amplifiers up to 100W
• Dimensions: 3.25"H x 17"L x 7.5"W
• Weight : 7 lb
• Easy on/off for all speaker pairs
• Push button amplifier selection
• Sturdy metal construction