Amazon offers the AudioSource 100-watt Stereo Power Amplifier
, model no. AMP-100, for $62.11
with free shipping
. That's $18 under our October mention and the lowest total price we've seen. (It's a current low by $28.) Sales tax is added where applicable. 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.