Hear what Mesa has to say:
MESA Matched & Tested - Backed by MESA's Premium Quality Guarantee - We start by specifying and selecting only the finest tubes available from around the world. We then test and match these tubes while under the stress of actual operating conditions to the tightest, most demanding specifications in our industry with our proprietary aerospace designed tube analysis system called Robotube. We accept only the "finest of the finest" and back them with the best warranty in the business for a minimum of six months! Install with the confidence of guaranteed premium performance from the worlds leading designer of custom, handcrafted amplifiers, MESA/Boogie Ltd.
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
These tubes come stock in these Mesa/Boogie products: Express 5:50, Single Rectifier 50, Recto-Verb, Dual Rec, Triple Rec, Roadster, Road King, Mark IV, Lone Star, 2:50, 2:90, Recto 2:100 & Bass 400+
+Pair of Mesa/Boogie 6L6 STR-440 Power Tubes