FOCAL MANAGER DSA 500 RT EXPERT PERFORMANCE
U s e r m a n u a l
20
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In the frequency adjustment zone between the subwoofer and the rest of the speakers for the system, adjus-
ting the cutoff frequency is unfortunately not enough to ensure accurate reproduction and the expected impact for low
frequencies.
As shown in the diagram of the car
(fig. 31)
, since your subwoofer is located in the boot, the time taken for the sound to
reach the ears of the passengers sitting in front is much longer than for the other sound sources in the vehicle.
The result is a slight temporal shift at the listening point, which in the worst-case scenario can lead to sound waves being
cancelled out, and in the best-case scenario can result in a slight lack of impact.
Readjusting the delay for the subwoofer can ensure that the subwoofer and the rest of the speakers play simultaneously
at the splitting frequency. For a given theoretical signal period, one of the sources is shifted slightly so that the phasing
is perfect at the listening point.
The equivalent values for delay are given in ms/cm/inches, as for the front channels.
(fig. 31)
