I honestly don't know Mark, but I can tell you that I bought my first A4 within the first year it was introduced and while I had no desire to "steal" any proprietary design from Peter, I WAS curious just to see what was inside so I simply split the case. I'm not an idiot when it comes to this stuff, and I can only tell you that I very carefully put the case back together. I didn't touch ANYTHING inside the case... at all. I just looked.

When I put the case back together, it was dead so I had to send it back. I got a response that they "knew" the case had been opened (with no mention of any particular damage). I forget the exact words, but I was told directly that if you simply open the case, the unit will disable itself.

The good news is that it, and my other, A4's have worked flawlessly ever since and have never missed a beat.

Highflight