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Interesting New Driver


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I have no connection with Parts Express, but this has T/S parameters I've never seen in an 18 before. Maybe it could work as a horn driver?



  • Resonant Frequency (Fs)30.95 Hz
  • DC Resistance (Re)1.04 ohms
  • Mechanical Q (Qms)13.32
  • Electromagnetic Q (Qes)0.24
  • Total Q (Qts)0.24
  • Compliance Equivalent Volume (Vas)7.95 ft.³
  • BL Product (BL)14.11 Tm
  • Diaphragm Mass Inc. Airload (Mms)244.2g
  • Maximum Linear Excursion (Xmax)9 mm
  • Surface Area of Cone (Sd)1,452 cm²
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