I would think it best if you powered it up a few hours every month, if for no other reason than the cycle the capacitors, which should extend their life expectancy.
Once a month is not required.. Once every three at most.. once a year at worst will be sufficient. Sya split it and fire it up every six months and all will be well.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.