hmm interesting. Agree could be needed if MS-8 isn't present. As per JBL website they claim to do time alignment, see here
And if that werenít enough for a great sounding system already, the MS-8ís DSP takes the measurement input and applies and advanced time correction algorithm. By applying this time correction, the MS-8 ensures that sound from all speakers will hit your ears simultaneously. This greatly improves the systemís imaging, clarity and realism.
650i F12 - HUD, 6WA, SLI, Logic 7, Dynamic and Adaptive Drive, Comfort Access, Soft-close, top-view,
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