Update Notice!
The long standing T-series black bottle tubes (originally launched in 2008) now have been superseded by the new ZX-series Grey Bottle tubes. Same high quality sonics, with a better valued pricing for EVERY audiophile can afford to upgrade from an entry level 300B tube to an upgraded 300B.
Please click and visit THIS LINK to see the new ZX series 300B.
Description:
- Perforated mesh plate
- High purity carbon-polymer internal coating
- Gold coated base
- Gold coated pins
