It is muted in standby mode. Unless it is ready to play, any other time it's muted. I see no risk what so ever.
Calypso owners - question about muting & start-up
Is there a risk of a spike or DC output if the Calypso preamp is powered off from the standby position, while hooked up to a solid state power amp that is powered up? In other words, if the preamp is in standby and inadvertently turned off (maybe by another family member or housekeeper) before turning off the power amp, is there a risk of damaging the power amp, or does the Calypso mute output in the standby mode so that such damage would be unlikely? Thanks.