+ vs. Speakers: Revel Performa F30 An ABX test was arranged between these two equipments and 14 people couldn't tell them apart from each other. Yes. The results are in spanish but Google Translate works reasonably well with this: http://matrixhifi.com/contenedor_mlnad.htm It's not the only test. There are plenty of equally impressive tests more at: http://matrixhifi.com/pruebasciegas.htm So... is 90% of the HI-FI market based on snake oil and in the fact that the human brain has a 3-4 seconds auditory memory at much? https://en.wikipedia.org/wiki/Echoic_memory I wonder... Disclaimer: I am the happy owner of a NAD C 370 + B&W 602 S3 speakers and a pair of Etymotics ER4XR.