The MESA 6L6 STR 440 is our very best overall 6L6. It is a premium grade, US equivalent and our tube of choice in the production of all new Mesa 6L6 powered models. Remarkable bass definition, articulate mids and shimmering highs keep every note amazingly intelligible, with a smooth, creamy character. Premium structural quality provides exceptional consistency and reliability, Rivals NOS (New Old Stock) durability and sonic character. Our 6L6 STR 440s are amazing for all styles of music.
The STR-440 is a direct replacement for our out of production STR-420's and STR-430's.