Xmax ?


New member
Username: Doom

Post Number: 2
Registered: May-06
What is xmax?

Silver Member
Username: Van_man

Boston, MA

Post Number: 403
Registered: Mar-06
By definition it is the peak linear travel of a driver. If you measure the distance that the voice coil can travel in the gap (in one direction) while the number of turns in the gap doesn't change, you have the Xmax. If you go past this point, the actual windings in the voice coil start to leave the gap. The diagram below shows the voice coil at its maximum travel at point of max linear travel and just past its point of max linear travel"

Excert from http://www.bcae1.com/

New member
Username: Doom

Post Number: 3
Registered: May-06
Is there a way I can figure out the xmax of my 05 12" alpine R?

Gold Member
Username: Rzarector

Coquitlam, Bc Canada

Post Number: 1213
Registered: Dec-04
looking it the specs.. i think its 19 or so

New member
Username: Doom

Post Number: 4
Registered: May-06
I dont have them and cant find on google.

Silver Member
Username: Killerzracing71

Fredericksburg, Virginia United states

Post Number: 817
Registered: Aug-05
for those who r still interested an couldnt find the pic of the Voice coil Upload

Silver Member
Username: Troy81

Tavernier, Fl Us

Post Number: 277
Registered: Mar-06
so thats "bottaming out" and hurting the sub?

Silver Member
Username: Mike_anthes

Canton, SD USA

Post Number: 337
Registered: Aug-04
bottoming out is when the sub mechanically can't throw any further right???

Bronze Member
Username: Believe


Post Number: 92
Registered: Jun-05
its when it throws back too hard
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