Milling twice 80 mm
Milling the second round a little bit smaller at 80 mm, again not deeper than 18 mm.
https://www.buildandlisten.com/loudspeakers/cno-grand/buildprocess/216206f4-5c7a-49c6-807e-ecfbc04a1298.jpeg/view
https://www.buildandlisten.com/loudspeakers/cno-grand/buildprocess/216206f4-5c7a-49c6-807e-ecfbc04a1298.jpeg/@@download/image/216206F4-5C7A-49C6-807E-ECFBC04A1298.jpeg
Milling twice 80 mm
Milling the second round a little bit smaller at 80 mm, again not deeper than 18 mm.
