First post: Questions regarding ALTEC 612 enclosure - DIY

[Tralalalala]

Here is a drawing of the 612 C enclosure with correct dimensions on all three braces:




Here is a drawing of the speaker opening with correct angle and dimension on the bevel and opening:




Here is a 3-D view of the 612 C cabinet: look especially on the linear dimension between edge of front and where the front panel is placed.