It is possible that I misunderstood the instruction manual, but I think it has a "direct" mode but not a "pure audio" mode. It means that there is no digital processing of the signal, but under pure audio mode all other circuitry is disabled, including video and display. I have found little difference between the two, but in some systems there may be. Stepping up to the higher models will get you the pure audio mode, but at a cost.