RUBY 6550ASTR Power Vacuum Tube

Ruby 6550ASTR Power Vacuum Tube Finally Back In Stock!

Upgrade your amp's sound quality with the RUBY 6550ASTR Power Vacuum Tube. Finally back from the Shuguang factory, this high quality tube offers great sound. Trust a product expert for professional and objective results.

All RUBY™ Tube power tubes come already matched. There is no extra charge for this service. Our Magic Parts matching process is very exact and our tubes are matched within +/- 1 mA (mille amp) of each other.

All Magic Parts™ Tubes Are Tested Extensively For Quality Assurance
6 Month Warranty On All Tubes