Groove Tubes

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GT-EL84-R Duet
Russia EL84, Good quality, long lasting type with a slightly aggressive edge when pushed into overdrive.
Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick, soft overdrive distortion, great for recording but usually too low volume for live gigs.

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.

Country of origin: Russia
Groove Tubes Gold Series GT-EL84-R Matched Power Tubes High (8-10 GT Rating) Duet

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Country of origin: Russia

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Country of origin: Russia