http://www.head-fi.org/t/486598/testing-audiophile-claims-and-mythsA forum member joined and confessed that " Then I started to hear about some convincing blind tests and finally conducted my own. I was stunned at the results. I couldn't tell a $300 amp from a $3000 in the store I was working at. Neither could anyone else who worked there." Then he did his own blind test on a mate between an Onkyo SR500 Dolby Digital receiver and a Bryston 4B 300 wpc power amp and a Bryston 2 channel pre-amp owned by his mate. The 'red faced' mate could not tell the difference.