I recently acquired one of these basses in a very dark blue with a hint of forest green and black. The original pickups had been replaced with EMG's using one 9 volt battery for a power source. All other hardware is stock. I have heard that the fingerboards with the oval markers are ebony; however, the neck seems more like rosewood. This bass appears to have a wide range of tone. Are there others who can tell me his or her experiences and impressions playing this bass, especially with modified pickups. I am also considering replacing my current rig with a Mesa 600 Venture to better handle the frequency of that B string.