From Mesa Boogie
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 - 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.
We start with the finest tubes from around the world, test and match each one under simulated operating conditions to the tightest, most demanding industry spec. Then we back them with the best warranty in the business - a minimum of six months
Free 3-Year Warranty
Sound Pure stands behind our products. Free three-year warranty on this item. Coverage exclusions live in Terms & Conditions, Section 27.
Level of support and expertise that simply isn't available at big-box megastores. Read the warranty →
Returns
Not eligible for Try Before You Buy or the 48-hour approval period. Standard return policy applies — see Terms & Conditions, Section 18 for details.
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Sound Pure Studios · Durham, NC
Come hear it in our control rooms.
Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.