Spectral 30 Sl g2 on or off?

"  I read on the forums that many recommend to always leave it turned on"

there is your answer.....

did you ask in the forums how warm their units are when left on ?  maybe these units are warm due to design.

you can read in the forums regarding leaving ss equipment on all the time and many members do as when its turned off for a  period of time, it takes a day or so for the equipment to sound like it did before .       

Now, if you are going away for a few days, then I would turn it off and disconnect the power from the unit as you never know if a bad storm might roll in and a power surge could happen.

whether or not to leave the unit on or not ?      the OP gets answers from other members on a forum and they say to leave it on......but then asks the question again on whether or not he should leave it on or turn it off.

its your equipment so do what you want....but just keep in mind that it might sound " different " at first until things warm up and that could be in a few hours or ?????? .