Description

LAST STOCK CLEARANCE. AS-IS. 

• These last stock Treasure 6CA7-Z black bottle tubes were from our past wholesale dealing with China’s state owned tube factory – Shuguang.
• These are NEW tubes, but may have some cosmetic imperfection including but not limited to: no logo or no tube model prints on the tube (some of our past wholesale customers requested no print in order to apply their own custom logo); minor scuffs on the tube base collar or pins from testing / plugging into industrial testing equipment. These cosmetic imperfection do not affect tube function whatsoever.

Please read below description below: 

• 1 Pair of matched tubes have tested 105% of full emission. Very strong tubes.
• Do NOT order this item if your amp has auto shut-off feature. The amp may mistaken the strong emission as internal short failure, and shut off the amp automatically. Manual bias amplifier usually work fine with strong emission tubes by dialing bias into range.
• 1 extra single tube provided FREE for potential backup. It is NOT matched to the pair – tested 80% of full emission.

Suggested Break-in Time:

Please note: This tube requests extended break-in time to sound to the best. Recommended 150hrs.