Available Now at Northeast Music Center!
Bring the urgency, punch, and unmistakable British character of EL34 power back to your amplifier with a genuine matched pair of MESA/Boogie EL34 STR-447 Power Tubes. Selected for consistency and reliability, the STR-447 delivers tight, focused lows, powerful midrange crunch, and clear, articulate highs—an excellent choice for everything from classic rock and alternative to modern high-gain and metal.
Available from Northeast Music Center, this package includes two matched MESA EL34 STR-447 power tubes, ready for compatible EL34-equipped amplifiers.
• Genuine MESA/Boogie EL34 STR-447
• Matched Pair / Duet – 2 Power Tubes
• Premium-Grade EL34
• NOS-Equivalent Design
• Classic British-Style EL34 Character
• Tight, Focused Low End
• Strong, Aggressive Midrange Crunch
• Clear, Crystal-Like Highs
• Excellent for Classic Rock, Alternative & Metal
• Selected for Consistency & Reliability
• Suitable for Compatible EL34-Based Amplifiers
• MESA SKU: 750600D
The EL34 has long been associated with some of the most recognizable British-inspired guitar tones ever created.
The MESA STR-447 captures that familiar personality with an urgent, aggressive response that works especially well when an amplifier is pushed into overdrive.
Expect a focused bottom end, muscular midrange presence, and articulate highs that allow the guitar to cut through a dense band mix.
Power tubes work together as part of your amplifier's output section, which makes proper matching important.
MESA supplies these STR-447s as a matched duet, helping provide consistent operation and balanced performance when replacing a pair of power tubes in a compatible amplifier.
For MESA amplifiers designed around the company's fixed-bias system, using properly selected MESA tubes also removes much of the uncertainty involved in choosing replacement power tubes.
The STR-447 is particularly well suited to players who want an amplifier to feel immediate and aggressive.
Classic Rock.
Hard Rock.
Alternative.
Progressive.
Metal.
High Gain.
The combination of focused lows, pronounced midrange crunch, and articulate highs makes the STR-447 an excellent choice when definition and authority matter.
Not every tube amplifier designed for 6L6 tubes can automatically accept EL34s.
Some MESA amplifiers feature an EL34/6L6 Bias Select switch, while others have specific requirements regarding which tube types and socket positions can be used.
Always consult your amplifier's owner's manual before changing power-tube types.
If you're unsure, Northeast Music Center can help determine whether the STR-447 is appropriate for your particular MESA amplifier.
Replacement tubes are one area where buying the correct product matters.
At Northeast Music Center, we'll help you determine the correct power-tube type and quantity for your amplifier rather than simply selling you a pair of tubes.
Whether you're performing routine maintenance, replacing worn power tubes, or exploring an approved alternative tube configuration, Northeast Music Center can help you keep your MESA/Boogie performing the way it should.
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