First, congratulations on your purchase, and welcome to the ranks of happy tube amp owners :-)
As the others have indicated there are many design-related variables that are involved, so the short answer to your well put questions is "no."
A longer answer: The amount of heat generated by the amplifier itself will be proportional, at any instant of time, to the amount of AC power going into it minus the amount of power being delivered to the speakers.
However, since with nearly all speakers that are intended for use in the home the great majority of the power going into them will be converted by the speakers into heat, with only a small fraction of that power being converted into acoustic energy, it is reasonable to approximate the total amount of heat generated by the amplifier + speakers as simply being proportional to the AC power drawn by the amplifier.
The relevant specs on your VSi55, for example, are as follows:
POWER REQUIREMENTS: 100-125VAC 60Hz (200-250VAC 50Hz) 320 watts at rated output, 500 watts maximum, 205 watts at "idle". 0.5 watts power off.
So you can project the amount of heat that would be generated by the amplifier candidates you consider for the second system by comparing their specified AC power consumption with the 205 to 320 watt range your present amplifier has under normal operating conditions.
If some of the candidates don't publish AC power consumption specs, ask the manufacturer if they can supply those numbers.
Finally, keep in mind that under typical circumstances an amplifier will be called upon to approach its maximum output power capability just on infrequent dynamic peaks. So most of the time you are probably operating the VSi55 such that its AC power draw is much closer to the 205 watt number than to the 320 watt number.
Enjoy! Regards,
-- Al
As the others have indicated there are many design-related variables that are involved, so the short answer to your well put questions is "no."
A longer answer: The amount of heat generated by the amplifier itself will be proportional, at any instant of time, to the amount of AC power going into it minus the amount of power being delivered to the speakers.
However, since with nearly all speakers that are intended for use in the home the great majority of the power going into them will be converted by the speakers into heat, with only a small fraction of that power being converted into acoustic energy, it is reasonable to approximate the total amount of heat generated by the amplifier + speakers as simply being proportional to the AC power drawn by the amplifier.
The relevant specs on your VSi55, for example, are as follows:
POWER REQUIREMENTS: 100-125VAC 60Hz (200-250VAC 50Hz) 320 watts at rated output, 500 watts maximum, 205 watts at "idle". 0.5 watts power off.
So you can project the amount of heat that would be generated by the amplifier candidates you consider for the second system by comparing their specified AC power consumption with the 205 to 320 watt range your present amplifier has under normal operating conditions.
If some of the candidates don't publish AC power consumption specs, ask the manufacturer if they can supply those numbers.
Finally, keep in mind that under typical circumstances an amplifier will be called upon to approach its maximum output power capability just on infrequent dynamic peaks. So most of the time you are probably operating the VSi55 such that its AC power draw is much closer to the 205 watt number than to the 320 watt number.
Enjoy! Regards,
-- Al