6550 tube for ARC Ref 6


Tung Sol 6550 (NOS)
GE 6550 (NOS)

I  can get these brand new product form my local tubes shop, may I know which is a better choice for ARC Ref 6 ?

The price of Tung Sol 6550 NOS is much higher than GE 6550 NOS, does Tung Sol 6550 NOS sound much better than GE 6550 NOS?

What are the main difference between these two 6550 tube in sound quality?

THX
mmbl622
The Tung Sol tubes were made in America in the northeast production facility thats what the company did, made tubes. General Electric, is a huge company that made and still makes many many different types of products, circuits ect... So thats why Tung Sol tubes that are original NOS are going to be more expensive then the much more mass produced GE tube. Tung Sol's sound nice and warm with great tone and beauty, GE will sound a little less so.