Maybe I am not using the correct words "true bypass". You techies please correct me if I am wrong. I have had problems with the active electronics in my basses dying unexpectedly due to low battery. I love my Lakland 5501 bass but it died at practice last night. I know that by pulling up on the volume know the bass goes into passive mode. What I did not know is that you need a fully charged battery to do that! If you ask me, this kind of defeats the whole purpose active/passive switch. So what active electronic basses have true bypass? The way to test it is to remove the battery completely and see if you can still get a signal. Thanks! PS I read that Duff McKagan used to play a Power Jazz Bass Special until one night the battery died right before the big opening chord of the first song!