This table charts the specifications for the KAPPALITET 3012HO speaker*
Nominal Basket Diameter: 12-in, 305 mm.
* Nominal Impedance: 8 Ohms.
* Power Rating: *
Watts: 400 W.
* Music Program: 800 W.
* Resonance: 52 Hz.
* Usable Frequency Range: 51 Hz - 3.5 kHz.
* Sensitivity: 100.5 dB.
* Magnet Weight: 11 oz.
* Gap Height: 0.365 -in, 9.3 mm.
* Voice Coil Diameter: 3-in, 76 mm. * Thiele & Small Parameters.
* Resonant Frequency (fs): 52 Hz.
* DC Resistance (Re): 5.5 Ohms.
* Coil Inductance (Le): 0.57 m H.
* Mechanical Q (Qms): 8.39.
* Electromagnetic Q (Qes): 0.33.
* Total Q (Qts): 0.32. * Compliance Equivalent
Volume (Vas): 81.1 liters / 2.86 cu. ft. * Peak Diaphragm
Displacement Volume (Vd): 330 cc. * Mechanical Compliance of
Suspension (Cms): 0.2 mm / N.
* BL Product (BL): 15.9 T-M. * Diaphragm Mass Inc.
Airload (MMs): 47 grams. * Efficiency
Bandwidth Product (EBP): 157. *
Maximum Linear Excursion (Xmax): 6.2 mm. * Surface Area of
Cone (Sd): 532.4 cm2. *
Maximum Mechanical Limit (Xlim): 12.5 mm. -----------------------------------Recommended Enclosure Volume; *
Sealed: 28-76 liters / 1- 2.7 cu. ft.
* Vented: 41-110 liters / 1.5 - 3.9 cu. ft.
* Driver Volume Displaced: 0.054 cu. ft. / 1.53 liters.
* Overall Diameter: 12.38 -in, 314.5 mm.
* Baffle Hole Diameter: 11.06 -in, 280.9 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.28 -in, 7.1 mm. * Mounting Holes B. C. D.: 11.62 -in, 295.2 mm.
* Depth: 5.63 -in, 143 mm.
* Net Weight: 7.1 lbs, 3.22 kg.
* Shipping Weight: 8.7 lbs, 3.95 kgs. * Materials of Construction.
* Coil Construction: Aluminum voice coil.
* Coil Former: Kapton former.
* Magnet Composition: Neodymium magnet.
* Core Details
: Vented core. -----------------------------------.
* Basket Materials: Die-cast aluminum basket.
* Cone Composition: Treated paper cone.
* Cone Edge Composition: Sealed cloth surround.
* Dust Cap Composition: Treated paper dust cap.