Don't. I own six Klouts, two LK-240, two AV-5150 & quite a number of other Linn pieces. The ones that I have left on have gave me trouble in the past. By trouble I mean sending them to Linn USA for repairs. Linn advises not to do so on the older amps (LK series & Klouts), the new ones go into the standby mode. The LK-240 & AV-5150 had a safety recall, they do go into the standby mode but Linn now say that it is unsafe. I have talked with a few Linn representatives, they all say that their amps should be at optimum operating temp withing 15 minutes after being turn on. Hope this will help you.
