TigerDirect offers the AudioSource 100-watt Stereo Power Amplifier, model no. AMP-100, for $80.29 with free shipping. That's tied with our April mention and the lowest total price we could find by a buck. (Most stores charge $90 or more.) Features include 50 watts RMS per channel into two channels, 20Hz to 20kHz frequency response, 5-way speaker binding posts, speaker selection switches, bridgeable outlets, and more.