my experience with Western Electric 300bs in my VAC 70/70 was just OK, nothing special. I think it really depends on the circuit that is using the 300b. The VAC is not the ordinary 300b amp. I've tried Western Electric, Golden Dragon and JJs, and the JJs were by far the best. A nice big solid sound, with plenty of detail and energy. I got a matched OCTET at eurotubes.com for under $700! definitely worth it!
Weakened 300B tube signal
Dear audiophile friends: – the tubes (Golden Dragon) I am using in my VAC Renaissance amplifier are getting old (3000 hours). The sound level coming from the amplifier is lower comparing to the level when the tubes were new. What worries me is the change in the level of the sound: the high frequencies still sound “normal” while the lower frequencies are much reduced. Is this type of phenomenon normal? Your opinion will be appreciated…