I hope you mean 7308. A Primo 6DJ8 will sound a little better than a 6H30 I don't believe Mark (juicy Music) or I ever said it wouldn't. The thing is the headache and expense in finding a quiet primo choice 6DJ8 is not a pleasant undertaking for everyone. I have about 16 nice choice vintage 6DJ8 that I used to use in my BBX's and they are all noisy a pair really nice PQ Phillips 7308 gold pins that became noisy on me after multiple years of heavy use... its a damn shame. I'm a cheap bastard at heart and often run my gear 16 hours a day I refuse to plop down hundreds of dollars on a tube I'm going to use like that. So I use the 6H30..sound almost as good and is always quiet for $30. Nope don''t believe in those 70's and 80's super tubes either... I own 2 of them and they don't sound any different then the modern $30 sovtek or $32 EH gold pin.