This is the first time I have tried doing a stave and spline build. 10 x 9 degrees makes a semi-circle, 20 x 9 degrees makes a full circle.
The sub is a variation on a Ripole design with forwards and backwards facing U wells.
The front well has a restriction which lowers FS, flattens response curve and increases velocity (higher output) over back well at the expense of reducing high frequency extension.
Splines are cross-grain to the slots for strength and alignment.
I used a combination of router gigs and a flush cut table saw fence to round the semi-circles. Rounding on the TS is sometimes frowned upon.
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2022/03/30 Historical Records CENSORED
