Hi John, plug the unit in please and compare the sound.
Housing label is not accurate.
Ok..... but how is both the top and bottom housing incorrect? The circuit board is connected to the bottom housing which has the 12m tag. The top housing being wrong (or defaced) I can completely see, the bottom housing is what the board and all internals are directly connected to. This portion being wrong seems odd. This would mean switching a 12Q circuit board into a 12M, I'm not going to open the unit up, but I have others in my collection and when I replaced the board in my other Alpha siren it was a bit of trouble (I also kept the housing correct). It seems very odd for the top to have the letter designation cut off and the bottom to say "M". That means the only "Q" portion is the circuit board.
I don't want to put power to an item that has apparently had a new circuit board placed into the housing. I could open this up and put this to bed immediately, as I know the production years of the boards and differences between the M and Q boards. But again I'm not going to touch the item, it was significantly altered and is not as described. The item is still in the box and I am stating it is not the item I purchased.
Imagine you made a deal to buy a vintage car and it showed up 10 model years newer with one insignia cut off. The seller says don't worry, the vintage engine is installed in the newer car. Would you care? You would immediately declare you bought the complete vintage car, not a newer model year with the older engine installed. My point being, even if this is a 12M body with a 12Q board installed, I don't want it; it is not what I agreed to buy.
Also, it would have been nice to know this before buying, your picture shows the proper label and this is part of the value of the unit. Since it is not the item pictured for sale, it's not really what I need. Half the housing is incorrect, the other half is defaced. Even if the board is a 12Q it would be valued at a significantly lower price for both reasons. I might have bought the board alone, or the altered item I received if it had been properly described, but only for a much lower price. however, the major alterations were not disclosed when we agreed on a price.
The bottom line is I don't care what it sounds like. I am a collector, not someone just looking for the specific sound for their car. This item has a greatly diminished value due to the undisclosed alterations and it isn't what I agreed to buy. I will ship it back for a refund, and then take down any feedback and/or this thread if you wish. I'm not trying to be difficult but a mismatched housing and internals isn't a small detail.