Adjusted Truss Rod w/ supplied tool. Changed strings. This is a solid acoustic Bass. Electonic pickup is really not very good. Played some Elec Acoustic basses at the music store and none were acoustically better than this with the new strings...at 3X's the price. I used the Light D'A and love the sound. If you want to run through amp it will work but the low end sucks. A $20.00 in hole pickup will do the trick.