Sovtek
Sovtek 5881R - Matched Quad
This famous Russian 5881 tube is dependable and soft sounding.
All Ruby Tubes pre-amp tubes are properly tested for quality assurance.
6 month warranty on all tubes
6 month warranty on all tubes
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This famous Russian 5881 tube is dependable and soft sounding.
All Ruby Tubes pre-amp tubes are properly tested for quality assurance.
6 month warranty on all tubes
6 month warranty on all tubes
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