Krell KSA100 doesn't stop upon shut down?


Hi,
I own a KSA 100 MkI and when I turn it off the sound doesn't stop immediatly but keeps going until vanishes after 20 secondes or so.
Any idea what that could be?
Anything to worry about?
Please note that this amp, which has been recently serviced (capacitores replacment, bias setup, etc) by a Krell expert, doesn't heat up very much either.
Thanks for your help.
amuseb
Nothing to worry about, quite normal. Even though you've powered off the unit, the unit still has power stored inside and all you are hearing in the discharge.
IS this common for Krell or everything? I have never had an amp keep playing after the power is turned off.?