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Groove Tubes GT-EL34

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Page last updated Aug 10, 2025

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Description

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Elevate your sound with the Groove Tubes GT-EL34, a meticulously crafted reproduction of the iconic EL-34 XF2 Dual Getter tube. Revered by both audiophiles and guitar amp enthusiasts, this tube delivers the rich, dynamic tones that defined a generation of music. Whether you're chasing the soulful wail of blues or the clean power demanded by jazz, the GT-EL34 offers a spectrum of performance to suit your style.

For those who thrive on early break-up and distortion, our low-rated tubes deliver a raw, edgy sound perfect for rock and blues solos. Opt for the medium-rated tubes if you're after versatility, with a balanced dynamic range and attack that excels across all genres. Meanwhile, high-rated tubes are tailored for power players and jazz guitarists, offering the most clean power and dynamic range for a pristine, less-distorted output.

Showcased at NAMM, this tube stands as a testament to exceptional craftsmanship and sonic fidelity. Whether you're a professional musician or a passionate hobbyist, the GT-EL34 promises to bring your amplifier to life with nuanced tones and responsive performance.

Key Features:

Reproduction of the classic EL-34 XF2 Dual Getter tube
Available in matched quads and duets
Low-rated: early break-up and distortion, wide range, softer attack
Medium-rated: balanced dynamic range and attack, versatile for all styles
High-rated: most dynamic range and clean power, less break-up
Ideal for rock, blues, jazz, and power playing
Country of origin: China

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Groove Tubes GT-EL34.

Comparisons

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The GT-EL34-Ms are essentially rebranded New Sensor Mullard reissues, often costing $15 more but potentially offering better testing and matching.
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Compared to worn original XF2 Mullards, the reissues are brighter with less bottom end, though the originals' wear likely impacts this difference.
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Some users have experienced matching issues with JJ tubes from certain suppliers, specifically from thetubestore.com, suggesting alternative purchasing sources for better reliability.
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Setup and maintenance

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TSL amps should have their bias checked using external bias points, particularly after replacing tubes to ensure stability.
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Let the amp idle for an hour after installing new tubes and recheck the bias to ensure it remains stable.
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User experience

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It's essential to check if the power tube failure has affected the HT fuse or screen resistor before replacing tubes.
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Matt Skiba

Guitarist, Singer

Blink-182

Verified via Orangeamps

I tend to stick with Groove Tube EL34s for Matt. They sound really aggressive and break up quicker than say something like a 6L6. They are the best fit for reproducing Alkaline Trio studio albums in a live setting.