@cyclopse, Yes I am 100% sure about the power specs of the current Vitus SIA-025. Vitus increased the power output from 100 to 150 watts in Kl.A/B about 18 months ago. Class A power is the same. By Hans Ole's own self admission, there are several inconsistencies with the spec
sheets and even user manuals right now. That is one of the projects
that Hans has 'in the queue'.
If in doubt, you could contact Vitus directly and confirm that.
Regarding maintaining optimal thermal conditions. I would refer you to the commentary from reviewer Chris Thomas in my earlier post. But fyi, this is from the SIA-025's owner manual which comes on cd..
"3. Standby mode. In this mode the controls of the SIA-025 are deactivated.
The SIA-025 does not shut down in Standby Mode in order to maintain an optimal working temperature"
You could also ask Bob at Rhapsody in NY who is a Vitus dealer. He had this to say on Audioshark forum about the SM-102 & SM-011 mono's - "One last point is that like most amps, but especially with the SM102's they take at least an hour playing in Class A mode to really strut their stuff. The SM011's take some time to warm up as well, but not as long as the SM102's. They are both VERY listenable from the get-go but after an hour in Class A with the 102's then you understand what they are all about."
Regarding maintaining optimal thermal conditions. I would refer you to the commentary from reviewer Chris Thomas in my earlier post. But fyi, this is from the SIA-025's owner manual which comes on cd..
"3. Standby mode. In this mode the controls of the SIA-025 are deactivated.
The SIA-025 does not shut down in Standby Mode in order to maintain an optimal working temperature"
You could also ask Bob at Rhapsody in NY who is a Vitus dealer. He had this to say on Audioshark forum about the SM-102 & SM-011 mono's - "One last point is that like most amps, but especially with the SM102's they take at least an hour playing in Class A mode to really strut their stuff. The SM011's take some time to warm up as well, but not as long as the SM102's. They are both VERY listenable from the get-go but after an hour in Class A with the 102's then you understand what they are all about."