2. amps-preamps
  3. 160975-976

Are there any tube amps that don't give off any---

HEAT!! 
I have a very small dedicated listening room, and so I was wondering IF there are any tube amps..I guess hybrid or all tube ( although more all tube)- that simply give off NO heat or very very little heat after full warm up. Since the climate seems to be getting hotter, it would be nice to have the benefits of a tube amp with no heat whatsoever. ( is this even possible?). 
Running AC isn't my preferred way of listening in a small room, so this question is now on my mind. I do not want to consider Class D solid state amps...as I know they are an option from a heat perspective...but just tubes.
128x128daveyf

Showing 3 responses by verdantaudio

verdantaudio's avatar
verdantaudio
1,469 posts
 
LTAs run relatively cool.  The other amps that run cooler are the current Bob Carver amps. Neither are cold but both run dramatically cooler than traditional tube amps.   

verdantaudio's avatar
verdantaudio
1,469 posts
 
@rushfan71 The Musical Fidelity NuVista 600 and 800 are hybrid amps that have a tube preamp stage and use bi-polar transistors in the output stage.  For these units to sound really good, they need 20-30 minutes of warmup time.  
verdantaudio's avatar
verdantaudio
1,469 posts
 
I don't think you are ever going to find an amp that runs totally cool.  There is electric flowing through it and that is going to generate at least a little heat

The coolest amps are going to be class Ds no question but even they give off a little heat.  Rogue's Hydra and Dragon are class D's with tube input stages.  They are excellent.  I have the hydra and it doesn't heat up much.  The Sphinx and Pharaoh are integrated amp options from them.

AVMs Evolution A 5.2 is a hybrid Class D integrated amps with a tube input stage.  

i am sure there are other Class D Hybrids.  

These will be the closest you are going to get to cool tube amps if LTA is not an option.  .  
More to discover