This is a Roland G-88 4 string P-Bass with Polyphonic synth pickup and synth. This bass has an 18 volt preamp with 2band eq. This bass has a walnut body and a maple neck with walnut stripes. I believe the fretboard is Ebony. Since the synth is analog not digital, there are actually no tracking issues. I'm dead serious, no tracking latency problems. This bass sounds great slapped and can also get sounds from thin and tinny to Dubworthy. Great sounding bass. I willl be accepting offers. In 1988 this bass was purchased for $1200 and the synth was another $900. My stepbrother's godfather is the origianl owner. EMAIL ME FOR PICS. THEY'RE TOO BIG TO ATTACH.