I have been searching for a lightweight power amp, strictly for jazz upright bass, so my power needs are modest. Among the things I came across is the Crate Power Block. http://www.crateamps.com/html/product.cfm?pid=119 By all appearances, it is a switching amplifier for roughly $200. The owners manual stipulates that the 150-Watt rating is at 10% distortion, so I am assuming the real clipping level is somewhat lower, but could still be in excess of 100 W. There is a power amp input that bypasses all of the guitar oriented circuitry. Question: Is this completely insane?