I would echo what @phoenixpete says Andrew lets you know when you get a quote from him that part of the service is that he insists on a full soak test until he is happy that there is no issues . I know this makes the repair process that bit longer and if like me your were itching to hear your speakers that was frustrating it is good toknow that at least they have been tested and only when they pass muster are they returned. Obviously mine are newy finished but i have to report that they are left on all the time and they are silent when there is nothing being fed to them . Once the system is turned on they remain silent until the music starts .