After a 5 month wait the circuit board arrived, frustrating that the manufacturing date of the board was 2020!
It is the correct board for my Yamaha DXR12 (and also the DXR8, DXR10 & DXR15). There is a label on the board denoting how it was configured at the production line. The one delivered was for a DXR10 (like the one in the image). It is worth advising customers that they need to move the small DIP switches for their model. It is also worth noting that the perimeter of this circuit board needs to be very carely removed. Thankfully it is pre-scored! It worked first time and my speaker has been running faultlessly for 2 hours. Thank you very much.