I agree Atmasphere .
But I really found a pleasing and significant difference with the 6Ca7's . With these I am most of the way there and hopefully don't have to spend a bunch for NOS tubes to make bigger changes .
For instance...I have been working with some KT-120's that I find quite pleasing in the extremes but quite lacking in the all important midrange . Rolling all of the usual small tubes has shown me that I preferred the Amperex sound . Now I will try the better Amperex trying to get the little bit that was missing with the lesser grade Amperex's that I was experimenting with .
With these 6CA7's , I may be able to get to the same place with some much less expensive Cifte or some Spanish 12AU7 variants to get the sparkle and top end increase that I am looking for .
It's all about the infinite possibilities available and trying to find that right combination . And maybe pick up a little education along the way !
But I really found a pleasing and significant difference with the 6Ca7's . With these I am most of the way there and hopefully don't have to spend a bunch for NOS tubes to make bigger changes .
For instance...I have been working with some KT-120's that I find quite pleasing in the extremes but quite lacking in the all important midrange . Rolling all of the usual small tubes has shown me that I preferred the Amperex sound . Now I will try the better Amperex trying to get the little bit that was missing with the lesser grade Amperex's that I was experimenting with .
With these 6CA7's , I may be able to get to the same place with some much less expensive Cifte or some Spanish 12AU7 variants to get the sparkle and top end increase that I am looking for .
It's all about the infinite possibilities available and trying to find that right combination . And maybe pick up a little education along the way !