Warwick Alien Deluxe 4 NT, Acoustic Bass with Pickup, RockBass series, Top: Solid AA Sitka spruce, Bottom and sides: Walnut, Set-in neck: Mahogany, Fretboard: Tigerstripe Ebony, Fretboard radius: 508 mm, Just-A-Nut III Tedur nut, Nut width: 38.5 mm, Scale: 32