Contents
Overview of XMax
without it leaving the magnetic zone
If excursion is increased even further, the back of the voice coil former will eventually
slam into the magnet, risking permanent damage to the driver.
can perform various processing operations on this data
which include band filtering, rotation, power spectra plotting, and
similar analysis features.
the horizontal dimension of the graphics output area.
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What is Xmax and why do I care?
Discussion in ‘Speakers’ started by streckfu, Sep 18, 2006.
Found it for less?
RevZilla will match any advertised price on new merchandise available through another authorized U.S.dealer.
So how far can we go?
There is a zone between Xmax and Xlim where we can operate without risk of physical
damage but where distortion increases as we increase excursion.Looking at discussions on various Audio forums, there is general consensus that, for a subwoofer,
distortion becomes audible if you exceed Xmax + 10%.It is fairly safe to assume that you won’t damage your driver.When designing a sub for Home Theatre, which is primarily driven from the LFE channel, a little distortion is acceptable,
so Xmax + 10% gives a better estimation of how the sub is likely to be used.
What is Xmax anyway?
Above is the cross section of a typical speaker voice coil assembly.Shown in light yellow, is the zone between the pole piece and the magnet
on the outside of the voil coil, where there is a uniform magnetic field
While ever the voice coil maintains a constant number of turns within this zone of constant magnetic field,
the signal will be reproduced faithfully.