EDITED & UPDATED
This happens with every unit and is part of the design. Although a little disconcerting, Pioneer say it is normal.
Here is the original thread.
The metal case of my Toraiz is holding some sort of electrical charge. I can feel a small electrically charged buzzing sensation under my finger tips when I run a hand around the metal case. It is hard to explain and ranges in strength.
This only happens when using the unit stand-alone and not plugged into any other piece of equipment via any of the inputs or outputs.
This happens when the unit has the power chord connected, regardless if the unit is powered on or switched off.
The electrical current in the metal case stops if you connect the Toraiz up to another piece of equipment.
I tested my unit in various different locations, home, friends, work etc. and it happens in every location.
Other users have now reported the same thing, both below and on other forums.
I have taken my unit back to the dealer who has thoroughly tested it on different power circuits and using different power adaptors. They confirmed the same thing - some sort of electrical current leaking to the metal case.
They also tested the demo model they had in store and it replicated the same thing.
We think (but can't confirm) that there is some sort of current leakage happening internally which is being transferred and held in the metal case. We think this may be staying in the case because the Toraiz is an unearthed unit - using a 2 pin (figure of 8) 9V 3A DC power adaptor. We think that connecting the Toraiz to another piece of equipment earths the unit and dissipates the electrical charge.
My dealer kept my unit to return to Pioneer for testing and has notified Pioneer. At that point mine was the first reported problem and Pioneer were unaware of the issue.
Since then, other users on here and other forums have reported the same thing and have either returned their units or contacted their dealer to report the issue.
To be clear - I'm not an electrical engineer and this issue may be perfectly normal and also perfectly safe. I have no idea. But I would have thought that Pioneer would be aware of this if that were the case. Again, I don't know and when you're dealing with strange electrical charges, it is better to be safe than sorry.
Pioneer are aware of this thread and it would be really useful if all users could quickly test their units, stand-alone, and add their findings.
Again, the sensation is hard to explain, but feels like a small electrically charged buzzing under your finger tips when you run them over the surface of the metal case.