Power direct from the wall, or Power Conditioner?

[Pim]

I think a great way to try out how good or bad the Expert's power supply is would be to tape a mobile phone onto the power cord. See if that has any influence on the sound (or no sound with the volume all the way up) as it rings (put the phone on silent of course)

Ha ha! Just wait for someone to claim they can hear the vibration from the silenced phone

Anyone with ears can hear that. Maybe not through the power line though. seriously though, I haven't heard any proof that the Expert range can actually be badly influenced by bad power, whatever that is. Is there anyone out there who has actually been able to identify something in their home that makes the amps sound worse than they should? In a way that you turn whatever it is on and the sound goes South and when you turn it off, the sound improves / gets back to normal? Don't forget, dirt on the power line is most likely from appliances in your own home because they're the closest. Unless you live in a high-rise building where you share your power lines with everyone else.

Let's have a go everyone. Start looking for a way to 'break' the Expert's power supply. If power conditioners make a huge difference it should be a piece of cake to identify a culprit that causes interference. We should start a thread on this...