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      01-30-2013, 12:05 PM   #21
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makkan00's Avatar
Drives: E90
Join Date: Dec 2011
Location: Essex

Posts: 6,071
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Got the response from DLS and here it is:

Hi Sam,

Thank you for your email,

We expect first shipment of UP-4 to arrive first week of March, I will then test the x-max.

Fs raw (not broken in) 94Hz
Fs broken in 85Hz
Voice coil diameter 30mm

I good guess of the x-max would be 3 or 4mm one way.

Best regards

Peter Flodkvist/DLS
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