Description
If your Marshall or Hiwatt-style amp has lost its bite, tired power tubes are usually the culprit. This quartet of Groove Tube GT-EL34-MQ-M tubes ships matched and boxed together, so you can drop them straight into your amp without hunting for a compatible set.
- Rated a 6 on Groove Tube’s performance scale — solidly Medium Range, meaning they handle normal distortion duties while staying versatile enough for a broad range of tones
- Exclusive Groove Tube design modeled after the original 1960s Mullard EL34, the tube Marshall and Hiwatt relied on for their early amps
- Faithful reproduction of the dual-getter XF2 variant that Mullard manufactured for roughly 15 years
- Delivers a thick, well-defined tone that pushes reissue amps closer to how the originals actually performed
Swapping in a fresh quartet is one of the simplest ways to restore headroom and punch to an amp that’s started sounding flat or weak. Whether you’re chasing that classic British crunch or just keeping your rig reliable for the stage, it’s smart to keep a spare set of GT-EL34-MQ-M tubes on hand — tubes wear out, and a gig is no time to discover it.






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