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How hot is hot when moving from class a/b to to a or tubes?

I am considering moving from a class a/b Luxman L509x to a class a or tube amp. 
I have never owned a class a or tube amp, so have no experience of living with one. My kids are hopefully old enough and wise enough not to burn themselves, but I do live in an already warm house with bifold doors leading to a south facing garden. There is no escaping the sun, despite having uv treated glass. 
 
My room is roughly 9 meters by 12 open planed living space. Equipment is, Luxman L-509x integrated, Zu union 6 supreme, 99db sensitivity (this is why I am considering a lower powered tube I can barely turn the Luxman up) music is played roughly 6 hours a day, more on weekends  

who here has moved from class a/b and d to class a with or without tubes. What were the differences of things like:

warming up time 

additional heat to the home

Running in summer time 

additional cost to run

any considerations I should make before purchasing something. I will try in my home, but will need to free up funds 
 

 

mpoll1

Showing 1 response by bigtwin

bigtwin's avatar
bigtwin
1,317 posts
 

@mpoll1  I have been running two 50 watt tube mono blocks.  See my virtual system to get an idea of the size.  To answer your questions.

Ready to play as soon as I turn them on.  No great warm up period required.  

After they have been running for a while, and at med loud load, the transformers are running at 110 degree Fahrenheit.  My room is 13 x 21.  After two hours of listen time the amps have raised the room temp by 3 - 5 degrees. 

The cost of running tubes vs SS  a few dollars per months.  My SS amps pull 3 amps on average and the tubes pull 6.  I doubt you will notice a difference on the electric bill.  

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