Hello Mr. East, How are you? I hope you are well. My name is Jon and not too long ago I had purchased your J-Retro Deluxe to have installed in my 2010 Fender AMD Jazz V String. I absolutely love it!! I can’t say enough great things about your preamp. My bass now sounds amazing….Passive, Active or whatever….It all sounds great! Also….All of my amp’s EQ settings are flat. I no longer need to add anything from my amp. Such a pleasure!