[iGrant]

Shuguang, the premier Chinese vacuum tube manufacturer with 50 years of history in designing, manufacturing and distributing high fidelity audio tubes, has just released their '50-Year-Anniversary Treasure Series' of vacuum tubes. Grant Fidelity (www.grantfidelity.com) as Shuguang's distributor, is the first and so far the only one to bring these "Treasure Series" tubes outside of China. According to Shuguang, the "Treasure Series" has adopted quite a few new technologies in the design - such as "High Polymer Compound Carbon (HPCC)" coating inside the glass enclosure to reduce the tube's internally generated noises and stabilize electron current. In addition, "Super Alloy" has been for the first time used on audio vacuum tubes construction to improve electron emission - before such type of material has only been used in aerospace industry and military application. Shuguang Treasure Series vacuum tubes production includes over 100 processes, which are nearly 60 more processes than those for manufacturing the Shuguang clear glass generic series. All parts go through 30+ screening and matching procedures to insure quality, accuracy and consistency. Production is done only by technicians with 30+ years of experience. The newly released Shuguang Treasure Series of vacuum tubes include the following model at the time being: 300B-Z, KT88-Z, KT66-Z, 6CA7-Z (interchangeable with EL34) and CV181-Z (interchangeable with 6SN7GT, 6N8P).

That and they look very cool

Ian

[iGrant]

Only 5 days to get in on the you write a review, you get a discount, you don't like them, return for a refund them offering. How often do you get an offer to try out new tubes and if you don't like them return them? No one, including our factories has ever offered me that !!

Offer info on the Shuguang Treasure Series product pages:

http://grantfidelity.com/site/catalog/57/vacuum_tubes

Cheers,
Ian

[Brown]

Any 211s or 6550 available The shuguang 211s that came with my amps are thin and bright with 500 hours break in. Any suggestions . Thanks

[iGrant]

Any 211s or 6550 available The shuguang 211s that came with my amps are thin and bright with 500 hours break in. Any suggestions . Thanks

You could try cryo treating your Shuguang 211's (would require another break in) I've always enjoyed the results of cryo treating tubes and even gear. We have the new TJ Full Music 211, much better tube, much more expenive ! The SG Treasure KT-88 is a replacement for the 6550's unless your amp manufacturere states otherwise.

Cheers,
Ian

[cryoparts]

Any 211s or 6550 available The shuguang 211s that came with my amps are thin and bright with 500 hours break in. Any suggestions . Thanks

If you can get them here to me in Utah by tomorrow, I'll cryo them this weekend for you for free and you can post the results after you burn them back in.

PM me if you want to do it.

Lee