Niles SI-245 Power Amp - $60 (New Market)

About the Niles® Audio SI-245 Multi-room audio systems operate better when you use an amp that offers greater flexibility than a typical stereo amp.
If you own a receiver with a second-zone preamp output, the Niles® SI-245 is the perfect power amp for those second-zone speakers.
You get 45 high-current watts RMS per channel and 4-ohm stability — connect two pairs of 8-ohm speakers in parallel without worrying about overloading the amplifier or speakers.
Details: discrete, high-current design 45 watts RMS per channel into 8 ohms (both channels driven) 70 watts RMS per channel into 4 ohms (both channels driven) three turn-on modes: music sensing, voltage trigger, and manual dual 5-way binding posts 12-volt control out voltage trigger input accepts 3-30V AC/DC cascade output lets you easily add another amp to your system left and right channel adjustable level controls let you match volume from one room to the next DC, short circuit, and overload protection with automatic reset detachable AC power cord 17"W x 2-5/16"H x 13"D