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New Mesa/Boogie Roadster Re-tube Kit

(4) 6L6 STR 445 Power Tubes, (2) 5U4GB Rectifier Tubes, and (6) 12AX7 Preamp Tubes
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Item ID: RoadsterRTPk
Mesa/Boogie Roadster Re-tube Kit
Special Financing - Ends Aug 2, 2026. $12/month with 36 month financing*

Backordered - More On The Way!

We expect more soon. Order today to reserve yours now, risk-free. Estimated May 2026.

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Tubes Are Not Returnable
Sorry, tubes cannot be returned, so please call if you'd like help choosing.
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Mesa/Boogie Roadster Re-tube Kit
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Here's what you get!

Bundled Item: Mesa/Boogie 6L6 STR 445 Power Tubes - Matched Duet
Qty: 2

Mesa/Boogie 6L6 STR 445 Power Tubes - Matched Duet

Sells separately for $91.00 each

With their tightly articulate low-end response, balanced mids, and bright-yet-smooth top end, it's no wonder that you'll find Mesa/Boogie 6L6 STR 445 Power Tubes driving their modern Dual Rectifier and Triple Rectifier tube amplifier heads. This matched pair of tubes can also be used as an update for older Rectifier heads, or as a sonic upgrade for any 6L6-driven tube amplifier.

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Bundled Item: Mesa/Boogie 5U4GB Rectifier Tube
Qty: 2

Mesa/Boogie 5U4GB Rectifier Tube

Sells separately for $39.00 each

You'll find the MESA 5U4GB inside all the new Mesa/Boogie tube amplifiers. As M/B puts it, it's their "factory favorite" — and for good reason. The MESA 584GB is based on 1950s tube technology, and is essentially an improvement on the 5U4 design. Not only is the tube more reliable, but it's much more compact. In fact, it's about the size of a 6L6 power tube, so take caution when you're positioning it inside your amplifier. What you'll get is a traditional "vintage sag" with an elastic and compressed feel — very cool, MESA 5U84GB.

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Bundled Item: Mesa/Boogie 12AX7 Preamp Tube
Qty: 6

Mesa/Boogie 12AX7 Preamp Tube

Sells separately for $26.00 each

The Mesa/Boogie MESA 12AX7 is a premium-grade preamplifier tube. It's designed to provide high gain output with an overall balanced tonal quality. You'll also find that the MESA 12AX7 is both consistent and reliable in its smooth, balanced tonal response. The MESA 12AX7 is a lively, open, and expressive tube.

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Customer Reviews

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It's hard to imagine a more quintessentially modern guitar amplifier than a Mesa/Boogie, and when Sweetwater guitarists want high-gain tone, Mesa is where they start. One thing we love about these amps is their sheer versatility, such as the massive range of tone you get from each channel, the freedom to use the tubes you love, onboard CabClone cabinet emulation, and MIDI control. And it's not just guitar amps - Mesa/Boogie's bass amps and pedals are equally cool. What's more, thanks to our incredibly close relationship with Mesa, you can even customize your own amp right here on Sweetwater's website! Get the sound and style you want from your next amp, with a Mesa/Boogie from Sweetwater.