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300B Warmup versus other tube or SS amps?

Anyone have experience in warming up their 300B SET amp?  My push pull tube amp comes on duty after about 15-20 minutes or so of warmup.  My 300B sounds distinctly better after 60-90 minutes of warmup.  If it's on for several hours it may even marginally improve from there.  It sounds a bit flat out of the gate (no warmup).  My other amps are not as sensitive to this.

I am just curious to what folks have observed in there setups.  
128x128jbhiller
glennewdick's avatar
glennewdick
702 posts
 
I'm sure it depends on your amp's my 300b SET seems to be fine after 10mins or so depending also on the time of day as I live in the city so supper time it sounds not great after much better.
jburidan
672 posts
 
I turn my tube gear on ten minutes before listening. Solid state you can leave on all the time.
lowrider57's avatar
lowrider57
3,018 posts
 
Perhaps there is no easy answer for tube amps. It might depend on design, size of transformers, caps, type of wire, tube type.

One of my SS amps took hours to sound its best, so I left it powered up.
With tubes it's easy to hear the SQ increase as it warms up.


jbhiller's avatar
jbhiller OP
464 posts
 
Agreed!  Very interesting. My Primaluna takes far less than the SET. 
rodge827's avatar
rodge827
468 posts
 
I let my ANK interstage monos warm up for about 30-45 mins usually while preparing and enjoying dinner. There is some slight improvement after that but not much.
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