Groove GT 6550 C Quartet Power TubesThis tube has a distortion that is between a 6L6GC and a 6550A. In older Marshalls that have 6550s, 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.
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| Product Name |
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| Groove GT 6550 C Quartet Power Tubes |