Tube rolling in Cayin A-88T

i am Cayin A-88t user almost 1 year.i am very happy with the stock KT-88 tube, i find out that stock tube is exact design like U.K GOLD-LION.as you can see the same type
KT-88 tube are very popular.It use on: VAC,Quicksilver.....
this KT-88 Tube use in the Cayin A-88t amp is musical, warm,rich, powerful tube,
is like music with all the good's there !! why change !
or may be i buy new quads same tube to replace the old....

I also own this great amplifier. In addition to the stock tubes, I own a quad set of tung-sol re-issues 6550, and a quad set of Svetlana KT-88's. Both sets outperform the stock tubes handily. the Tung-sol are lush and a bit warm-sounding, but have midrange to die for. The Svets are more neutral and give the Cayin a solid-state like low end bass. I don't think you can go wrong with either of them.

As much as I enjoy this amp, I may have to sell it to go (reluctantly) back to a solid state system, as I need something that can stay powered up all the time. I only listen to 1-2 tracks at a time, once or twice a week..

Try these tubes and be happy!

Audiolverb..Thanks for your insight.

Soniqmike... Sorry that you may have to sell it..though I understand your point here. Another read of a thread somewhere mentioned that the EH tubes were not as good as stock.. and I always found the EH tubes very good in any amp I used.

Now,the New Tung Sol 6550 is said to be a better tube in the mids. Does it match the bass in the Cayins stock Kt-88?

Im assuming your speaking of the Svet =C= winged C tube. that you liked. I think Id rather have the mids of the Tung Sol as long as it doesnt suffer on the bass....Many thanks.