On Mon, Jan 26, 2009 at 01:28:32AM +0800, Ray Rashif wrote: > As long as it's balanced, there won't be any issue. That is *absolutely not true*. Any website that claims that you can safely connect a phantom powered mic input to any balanced output is providing very bad advice to its readers. It depends on *how* the preamp output is balanced. If it has a transformer to balance the output there will be no problem. If it is 'actively' or 'electronically' (!) balanced it depends on the if the designer has allowed for phantom power or not. In many cases the answer is *no*. If DC-coupled the PP may just destroy the output stages (transistors or opamps) if they are not specified to survive the voltage. If condenser coupled the PP will typically reverse-bias electrolytic condensers, again destroying them, maybe not immediately but they will die at some point. Ciao, -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia O tu, che porte, correndo si ? E guerra e morte ! _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
