Groove Tubes Gold Series GT-E34L-S Matched Power Tubes Medium (4-7 GT Rating) Quartet

The Gold Series GT-E34L-S matched medium power tubes are the original power platform behind most high-powered British amplifier heads from the '60s onward. Output is generally between 20 and 25 watts, with a pronounced mid-range punch, tight low end and crisp top end that breaks up relatively smoothly and gets a little crunchy when pushed hard. It provides a great voice that stands out in a band mix as the mids tend to power their way through an overall mix. Think of it as a big brother to the EL84.

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.