TOTL cool running amps with fast 'warm up' time?


I really enjoy the pass labs sound but its a very hot amp that does require hours of warm up to sound its best. What TOTL amps are cooler and faster to get to optimum performance?
Some amps that come to mind... boulder 2000, 3000 series, Rowland 925... but not sure.
smodtactical
Look at Clayton Audio amps.  Class A but they have a low-bias switch so you can leave them on without heating the house or blowing up your electric bill. 
Rowland M925. Run very cool. I leave my on all the time except when I travel or when there is lightning in the vicinity.
Ya  rowland and boulder seem interesting. 

@mijostyn did you hear either? 

@soix will look into clayton