Audion Silver Night 300b 20th Anniversary


Can anyone recommend 300bs for this amp?  I found that the JJs that are included lacked a lot of low end detail and sounded a bit bloated and strained at times.  Any advice would be appreciated.  Thank you.
tswisla
I had Audion mono's a while ago, whilst the very coloured midrange is great for vocals and guitar it is a bit "one trick". The bass wasn't very good. I sold mine on. I'm not sure changing your valves will fix this. 
I have the Silver night special anniversary edition (champagne color) 300b amp and changed the JJ’s to Kron Anniversary 300b’s and I really noticed a nice difference. More authority overall and detail improved. I also had the caps upgraded to V caps so this also bumped it up to another level. I’m driving Zu Soul Superflies which are 101db sensitivity so there’s plenty of power to fill the room. I usually only turn the volume a quart of the way up to hear what makes me happy. 
I agree with tim_field. I am not sure that different 300b will fix your issue. But I guess that trying one other version may make sense. My favorite 300b are Takatsuki, but they are very pricy. I also liked Sophia Electric RoyalPrincess.