Definitely in-cabinet speakers for those holes, M60's look like they might fi, if not in-cab M22's will fit nicely and the center would need to be an in-cab VP150(size?) or IMO, better yet an incab vertical M2 smile


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70