I'm glad you brought that up about recordings of acoustic bass. There's a lot going on in the acoustic realm when you put a microphone near an acoustic bass. There are bass body modes and there are room modes. That means where you put the microphone matters, and there is virtually no location that will make all the notes the same volume.I have heard a few recordings - some that come to mind by the Stray Cats - that had acoustic bass with all the notes sounding pretty close to the same volume. Brian Setzer and producer Dave Edmunds did a good job on those, I was impressed.