300B tubes

Hatari,
One thing to keep in mind is that some 300b tubes mate better with certain amps than others.
In general I can state that the Shuguang Treasure 300b has been a wonderful tube with my amps. Superb sound(very natural-organic) and ultra reliable nearly daily use for more than 2 years and not a single issue, none!Worth every penny IMO.
The Sophia Royal Princess has gotten great reviews and could be very special but it`s quite expensive(1200 USD).
In that price range there`s the Japanese Takatsuki 300b to consider.
Best of Luck,

I purchased 2 pairs of the GL 300b for a push-pull I got recently. I like their sound and they behave perfectly.

Some tubes just work better in certain circuits. Staying south of KR/EML/WE prices, I like the Sophia Meshes also.

"Some tubes just work better in certain circuits.”

I agree. I’ve also heard the same from some amp designers of note. FWIW, for me, the Sophia Royal Princess has been right on the money. And from what I recall of my auditions with Nagra (some time ago), I would find some way to listen to this tube in your amplifier. Talk to Sue at Sophia. I’ve known them to be very accommodating.

Jfrech - thanks! I love this amp - simple, small, sounds terrific. I have a VPS and PLP now too. Any advice on interconnects or power chords? Have you tried any battery units for the VPS (ie Red Wine Audio). I use stock cables. Also, what speaker cable was your dealer using in your listen on the 300p/i?

Thanks for the tube advice. The Sophia Royal Princesses are the most expensive tubes I've seen! I will look into them and call Sue. I may experiment a little with the Gold Lions first as a "reasonable" starting point.

Further input absolutely welcome and thanks.