Mesa/Boogie’s EL-34 STR 447 represents their top-tier EL34 offering — a premium-grade tube chosen for all new Mesa EL34-powered amplifiers. Known for its classic British voice, this tube delivers tight low end, crushing midrange punch, and glassy highs. It’s ideal for players seeking aggressive response, articulate definition, and classic rock-to-metal tones.

Whether you’re replacing stock tubes or upgrading for better tone and reliability, the Mesa EL34 STR 447 is a rock-solid choice — matched and tested for superior consistency and performance.

Key Features:
✔ Matched Pair of EL34 STR 447 tubes
✔ Classic British-style tone: tight lows, punchy mids, bright highs
✔ Excellent for high-gain, rock, and metal applications
✔ Factory-spec Mesa tubes for EL34-powered amps
✔ Burned in and matched for performance and longevity

Tone & Application:
Authentic EL34 voice with enhanced dynamics — perfect for players chasing British crunch, modern gain, or vintage edge. These tubes are Mesa’s gold standard for tone and durability.

Why Choose Mesa Tubes?
MESA power tubes are among the most reliable in the industry, hand-selected and tested to deliver unmatched tonal quality, stability, and performance in any tube amp — not just Mesa models.

From British Audio
As an Authorized Mesa/Boogie Service Provider, we supply and support Mesa tubes with confidence and care. Order your matched EL34 pair from British Audio today and power up with the tone you expect.