Photos here. The 800 is aligned with the diagonal of the room for the most linear possible response. The 160 is elevated to be aligned with the M80 tweeters.

https://drive.google.com/folderview?id=1_8XhAsLWR6qnaXvft1Nt-1dxpKlF5ZlI

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated