My BSX Series 2000 is an older type of EUB that doesn't sound as great as some of the ones that I've heard more recently, but I do find that it still comes in handy for some gigs. It consists of piezo and magnetic pickups, which offer huge tonal variety. I really notice that the Low Mid (250 Hz) band on my 400RB has a drastic effect on whether it sounds more like a bass guitar or an amplified double bass. I have studied previous threads and have learned that one of the principles of good EQ'ing is based on reducing frequencies and boosting volume instead of just boosting frequencies. I've really become aware of the importance of mids in defining the tone since I've begun to play double bass amplified on gigs. When I just use the piezo pickups on the EUB, the sound has no bottom, so I have to add a touch of magnetic to fill in the bottom. This method quickly reaches a point of diminishing returns though as the piezo sound is easily overpowered by the magnetic sound. I am wondering if anyone has any tips on EQ'ing that are specific to EUB to help obtain a more transparent tone, but with depth. This is my first post, so I hope it makes sense. Thanks !