EMINENCE SIGMAPRO184

18-in 700W RMS to MAX 1400W 3-in Voice Coil Diameter 4 Ohms Impedance Ferrite Magnet
SKU: SIGMAPRO184
Availability: Out of stock

This table charts the specifications for the SIGMA PRO 18-4 speaker
* Nominal Basket Diameter: 18-in , 457 mm.
* Nominal Impedance*: 4 Ohms.
* Power Rating*.
* Program Power: 1400 W.
* Watts: 700 W.
* Resonance: 32 Hz.
* Usable Frequency Range: 32 Hz - 2 kHz.
* Sensitivity*: 97.6 dB.
* Magnet Weight: 120 oz..
* Gap Height: 0.37-in , 9.5 mm.
* Voice Coil Diameter: 3-in , 76 mm.
* Thiele & Small Parameters.
* Resonant Frequency (fs): 32 Hz.
* DC Resistance (Re): 3.35 Ohms.
* Coil Inductance (Le): 0.85m H.
* Mechanical Q (Qms): 14.79.
* Electromagnetic Q (Qes): 0.3.
* Total Q (Qts): 0.29.
* Compliance Equivalent Volume (Vas): 360.84 liters / 12.74 cu.ft..
* Peak Diaphragm Displacement Volume (Vd): 695 cc.
* Mechanical Compliance of Suspension (Cms): 0.2 mm/N.
* BL Product (BL): 16.54 T-M.
* Diaphragm Mass Inc.
Airload (MMs): 121 grams.
* Efficiency Bandwidth Product (EBP): 107.
* Maximum Linear Excursion (Xmax): 7 mm.
* Surface Area of Cone (Sd): 1140 cm2.
* Maximum Mechanical Limit (Xlim): 18 mm.
-----------------------------------
Recommended Enclosure Volume;
* Sealed:
N/a .
* Vented:
84.95-212.38 liters / 3-7.5 cu.ft.
.
* Driver Volume Displaced: 0.234 cu.ft.
/ 6.62 liters.
* Overall Diameter: 18-in , 457.2 mm.
* Baffle Hole Diameter: 16.56-in , 420.6 mm.
* Front Sealing Gasket: Yes.
* Rear Sealing Gasket: Yes.
* Mounting Holes Diameter: 0.28-in , 7.1mm.
* Mounting Holes B.C.D.: 17.25-in , 438.2mm.
* Depth: 8.15-in , 207 mm.
* Net Weight: 24.5 lbs, 11.11 kg.
* Shipping Weight: 28.1 lbs, 12.75 kgs.
* Materials of Construction.
* Coil Construction: Copper voice coil.
* Coil Former: Polyimide former.
* Magnet Composition: Ferrite magnet.
* Core Details: Vented and extended core.
-----------------------------------.
* Basket Materials: Die-cast aluminum basket.
* Cone Composition: Paper cone.
* Cone Edge Composition: Cloth cone edge.
* Dust Cap Composition: Solid composition paper dust cap.

┬ęThunderball Marketing Inc. Distributors ┬ęDeejayLED LLC Distributors all rights reserved.