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GT-6550-C DuetA softer version of the older USA 6550A, with a nice distortion character. This tube has a distortion that is between a 6L6GC and a 6550A. In older Marshall's that have 6550's, this tube will give you more compression and distortion at lower levels than the other 6550 offerings. This tube is terrific in Class A amps such as the GT Solo Single when you want to have a lot of output for smaller live venues. Many people prefer these in some Marshall amps where more clean headroom and output is desired.Country of origin: Russia

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Groove Tubes Gold Series GT-6550-C Matched Power Tubes Features:

Country of origin: Russia

Groove Tubes Gold Series GT-6550-C Matched Power Tubes Specifications:

Country of origin: Russia

Groove Tubes Gold Series GT-6550-C Matched Power Tubes

90 day warranty on power tubes, includes replacement of whole set if one tube goes bad.
180 day warranty for preamp tubes.
3 year warranty on SubstiTubes and Solid State Rectifier.
Check with M-Audio for warranty on GT microphones.

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