The Sire Marcus Miller V7 Swamp Ash 4-string bass is a quality instrument that's been commended for its overall playability and tone versatility. The Marcus Miller V7 is the flagship model for Sire guitars. Sire and Marcus Miller developed a unique preamp system that gives players total control in finding and getting the perfect sound they desire. It has rolled fretboard edges for a more natural grasp and added comfort while playing in any setting.