Mesa Boogie KT-88 STR 488 Vacuum Tubes, Matched PairThe Mesa KT 88 STR 488 power tube is designed to deliver robust output, tight low end response, and refined clarity across the frequency spectrum. Engineered for high headroom and articulation, this premium grade KT 88 produces a commanding tonal footprint while maintaining a detailed upper register that helps bass and guitar tones stand out in dense mixes. Built for consistency and durability, the STR 488 combines modern construction standards with