Shuguang Black Treasure 300B Power Tubes: New; Grade A; Matched Pair; Gift Box; 45% Off

MSRP: $450.00 USD per matched pair

pcX Price: 249.95 USD per matched pair           45% Off Retail

Shuguang is the oldest and largest tube manufacturer in China, established in 1958 by engineers educated and trained in the United States in the 30-40s. Shuguang’s vacuum tube production accounts for the world’s 40% total tube output nowadays, either under their own brand "Shuguang" or under OEM brands. Generic Shuguang tubes come in clear glass enclosure. The Treasure series are only released in Dec 2008 to celebrate Shuguang’s 50th anniversary and technology advancement. Grant Fidelity is the very first international distributor of Shuguang Treasure series outside of China. All Shuguang tubes distributed by Grant Fidelity comes with standard 30 days warranty plus a 12-month optional extended warranty

Black Treasure

• Improved vacuuming technology during production process to clear signal background
• Key assembling process is manually completed by a small number of senior technicians with 30+ years of experience
• 60 extra parts selection and matching processes are adopted to ensure premium quality tubes, compared to the Shuguang generic clear glass tubes
• Premium Grade matched right out of factory to serve outside of China market
• Interchangable with 300B family of tubes for output of 10w