Párovaná dvojice koncových elektronek 6550-C Low renomovaného výrobce
The GT-5881C Power Tubes Duet features a Groove Tubes exclusive high-power 5881 "short bottle" design.
This is a very high-vacuum tube, the GT-5881C is very stable.
This tube type gives you a sweet tone and defined character that was a mainstay in the Fender tweed era amps of the 1950s and early 1960s.
The tube's short height allows for easy use in rackmount-style amps
Groove Tubes power tubes are matched and rated in low, medium and high output levels.
Most amp manufacturers bias their amps for tubes in the “medium” range, and replacement of stock tubes frequently do not require re-biasing if “mediums” are purchased.
- For softer feel, quicker distortion and creamier tone, we suggest “lows”
- For more dynamic headroom and tighter, quicker and harder overall response, we suggest “highs”.
Lows and highs are more likely to require re-biasing by a qualified service technician to meet your
For amp service techs or those wishing to customize amplifiers to achieve specialized tone, “high” (8-10) and
“low” (1-3) tube sets are available. In most cases, these may bequire amp re-biasing by a qualified service
technician. Please contact customer service to purchase matched sets with ratings other than “medium.”
- “low” (1-3) - Early distortion, wide range, softer attack good for Rock and Blues solos
- “medium ” (4-7) - Normal performance, great dynamic range/attack and best all around rating type for all styles of playing
“high” (8-10) - Most dynamic range, most clean power/less break-up for power players, Jazz and bass amps.
A 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.
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