2. amps-preamps
  3. 147141-18279

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
polk432
1,142 posts
 
 I ran (run) a Cary SLP 98P  Pre with a Cary V12R then a Cary Cad 120's and the manual calls for a 5 min warm up for the pre and 3 min warm up for the amps. Not sure on the Canary M 350's so I warm them up for 10-15 min. All the amps seem to sound better after 30 min.
jbhiller's avatar
jbhiller OP
1,399 posts
 
@lowrider57,  Great question! Maybe someone with more tech experience than us will chime in. 
glennewdick's avatar
glennewdick
1,663 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
803 posts
 
I turn my tube gear on ten minutes before listening. Solid state you can leave on all the time.
lowrider57's avatar
lowrider57
5,417 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.


More to discover