1991 Modulus Graphite 4-string bass, model Quantum BSQ4XL, $1600 plus shipping to lower 48 US states only. Up for sale is a 1991 Modulus Graphite Quantum 4-string bass, which I bought new in February 1992. It’s in excellent condition with only minor, fine scratches in those areas that you would expect (near the neck pick-up where a thumb would rest and on the opposite side adjacent to the G-string). There is no buckle rash. I’ve occasionally gigged with the bass, but have been very careful in its care over the years. It will be shipped in the original hard case. I have the original warranty card, operating instructions, as well as build information directly sent to me by Modulus. Here are some specifications: Model: BSQ4XL Scale: 35 inches Nut Width: 1.5 inches Number of Frets: 24 (note: frets are in very good condition-recently polished and the fretboard cleaned). Body: Popular with light quilt maple top. Color: Candy Raspberry (red, really) Build date: 7/26/91 Pickups and Electronics: EMG-35 PJ with B/T-C tone controls. Weight: 7 lbs, 15 oz. Neck Relief: .020” at highest point, measured on the E string (note: this model of Modulus bass does not have a truss rod – neck relief was built into the neck when manufactured). String Height: .090, measured on the E string at the 12th fret. This is a wonderful bass that plays quite well. I’m not interested in any trades at the moment. Let me know if you have any questions. Thanks!