I do the spin for each driver set and the complete system. This is six spins for an LFR1100 Active. This gives a view of all the on and off axis responses in play. Then things get tedious as you need to work out how to combine these to give you both the on and off axis summing you are trying to achieve. As to how many more spins that will take is anyone's guess. For the LFR1100 Active it was around 80 with double-blind listen testing in-between a bunch of them.

Ian Colquhoun
President & Chief Engineer