Groove Tubes

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The Gold Series GT-E34L-S Matched Power Medium (4-7 GT Rating) Quartets are an exclusive GT design with special "heat wings" attached to the plate for more power, longer life, and better tone. Big bottom, very dynamic, most powerful in its class.

This is a specially modified power pentode with 15% more power and great overall tone. Big heat sinks attached to the plates keep it from sagging at full power so the bass stays tight and the treble crisp.

Country of origin: Slovakia

Low-rated tubes have early break-up and distortion, wide range and softer attack good for rock and blues solos. Medium-rated tubes offer normal performance, great dynamic range/attack and are the best all around rating type for all styles of playing. High-rated tubes have the most dynamic range and the most clean power/less break-up for power players, jazz guitarists and bass amps.
Groove Tubes Gold Series GT-E34L-S Matched Power Tubes High (8-10 GT Rating) Quartet

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Country of origin: Slovakia

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Country of origin: Slovakia