Shuguang Treasure Vacuum Tubes – Select – NEW!
We are adding back in KT88-Z, 6CA7-Z (EL34), 300B-Z, CV181-Z (exact replacement of 6SN7) and the most recently 6SL7-Z (exact replacement of 6N9P) models of Shuguang Treasure black bottle tubes with our newly formed quality control collaboration with Shuguang tube factory.
We discontinued our offering the Treasure tubes in 2011 as the original ‘Treasure tube’ design team left Shuguang to form their own company ‘Psvane Audio’ – (check our catalog for Psvane tube offering). From 2011 to now, Shuguang has restructured its design team but the Treasure tubes have been sold through various channels with no clear quality indication. Grant Fidelity now has formed special collaboration with the Shuguang quality control team to ‘select, screen and supply’ tubes that Grant Fidelity deem to pass our quality requirement. These tubes have plain kraft carton packaging with original ‘Treasure’ logo and ‘GF Select’ printed on each tube. This entire Select series of tubes are ONLY sold through our website and not through any other vendors in order not to have mixed with unknown quality tubes. Please purchase directly online with absolute confidence.
Notice: We are adding back in the Shuguang Treasure KT88-Z black bottle tubes in Aug 2013 to meet customers' demands for 'black bottle' tubes (vs. Psvane Audio's grey bottle Psvane KT88-TII tubes). With collaboration with Shuguang's quality control team, we More Info »
Notice: We are adding back in the Shuguang Treasure CV181-Z black bottle tubes in Nov 2013 to meet customers’ demands for ‘black bottle’ tubes (vs. Psvane Audio’s grey bottle Psvane CV181-TII tubes). With collaboration with Shuguang’s quality control team, we More Info »
"Could this be the next best 6SN7 on the market today?" - this is no doubt the ambition in the design team's mind when they bring this model to the market! One very experienced distributor / dealer for ultra high end More Info »
True "Treasure" as a result of Shuguang's 50 years of expertise in vacuum tube design and production. High Polymer Compound Carbon (HPCC) coating is for the first time used on vacuum tube production. Compared to traditional carbon spray technology, HPCC More Info »
This is our most recent addition to the Treasure Select series - to allow high end amp owners to have a quality substitute of generic Chinese 6N9P or Russian 6SL7, which are widely used in many preamps and power amps, More Info »
A new addition to the highly popular Shuguang Treasure series! We have brought in limited quantity hand picked tubes to test market - if you are adventurous and experienced in tube rolling, we welcome you to take advantage of our More Info »
Please note that the KT120-Z has now adopted a cobalt blue glass enclosure to provide better heat dissipation through the glass enclosure. The new model number is called KT120Z CB - Cobalt Blue bottle. The transparent blue glass allows you More Info »