phase control on BAT VK pre amps


Does the phase control on the BAT series preamps have any appreciable or detrimental effects on music that is not recorded out of phase? I don't hear any difference with phase light on or off?? Anyone experience different effect?? Also, is it better to put pre in standby mode when not in use or leave on constantly? What's the difference??
wwchange

Showing 1 response by george44