Waht the **** does "bass density" mean ? Wel probably nothing but what does it do I wonder. Just for the hell of it.

But the serial number problem, those ar both stand alone units I assume. If they somehow rquird each other to run your, well you would have called yourself some names or something.

All I can say is this, if you service one of them, MARK THE OTHER ONE. got the logic of that ? If oyu mark the one you serviced, they could mak a similar mark on the other one. But if you mark the one you did not service, they cannot unmark it.

And definitely tell them unless you want to gt up video evidence. In fact just do it and take a video of it.

If you check, the laws in most civilized countries do not prohibit the marking of a "serviced" unit by a servicer. For reference purposes of course. Of course. This is reference purposes.

And on the paperwork you put A. That is the one you fixed. The other one is B, the one you marked.

In some of these hack shops I worked on things had no serial numbers. I was trying to tell them to at least use the last four digits ust for identification purposes. They never listened, and they got burnt a couple of times. Fukum. Especially now.

But I am happier freelance anyway. The basement turns into a shop I guess. At least I will move in an upward direction.

Whatever.

(this is not personallly to you or anyone)