SonicElectronix via eBay offers the JBL 500W 1-Channel Monoblock Amplifier, model no. MS-A5001, for $199.99 with free shipping. That's tied with our January mention and the lowest total price we could find today by $30. It features a digital input mixer, graphical status display, 500 watts in one channel, and frequency response of 20Hz to 270Hz.