{"product_id":"18-in-pro-audio-subwoofer-4-in-voice-coil-8-ohms-109-oz-ferrite-magnet-vented-scoop-loading-horn-loading","title":"18-in Pro Audio Subwoofer 4-in Voice Coil \/ 8 Ohms \/ 109 oz. Ferrite magnet \/ Vented Scoop Loading Horn Loading","description":"\u003cp\u003eThis table charts the specifications for the OMEGA PRO-18A speaker\u003c\/p\u003e\u003cbr\u003e\u003cli\u003eNominal Basket Diameter: 18-in , 457 mm.\u003c\/li\u003e\u003cli\u003eNominal Impedance: 8 Ohms.\u003c\/li\u003e\u003cli\u003ePower Rating:\u003c\/li\u003e\u003cli\u003eWatts: 800 W.\u003c\/li\u003e\u003cli\u003eMusic Program: 1600 W.\u003c\/li\u003e\u003cli\u003eResonance: 25 Hz.\u003c\/li\u003e\u003cli\u003eUsable Frequency Range: 40 Hz - 0.8 kHz.\u003c\/li\u003e\u003cli\u003eSensitivity: 97 dB.\u003c\/li\u003e\u003cli\u003eMagnet Weight: 109 oz..\u003c\/li\u003e\u003cli\u003eGap Height: 0.375-in , 9.5 mm.\u003c\/li\u003e\u003cli\u003eVoice Coil Diameter: 4-in , 102 mm.\u003c\/li\u003e\u003cli\u003eThiele \u0026amp; Small Parameters.\u003c\/li\u003e\u003cli\u003eResonant Frequency (fs): 25 Hz.\u003c\/li\u003e\u003cli\u003eDC Resistance (Re): 5.2 Ohms.\u003c\/li\u003e\u003cli\u003eCoil Inductance (Le): 1.67m H.\u003c\/li\u003e\u003cli\u003eMechanical Q (Qms): 8.18.\u003c\/li\u003e\u003cli\u003eElectromagnetic Q (Qes): 0.32.\u003c\/li\u003e\u003cli\u003eTotal Q (Qts): 0.31.\u003c\/li\u003e\u003cli\u003eCompliance Equivalent Volume (Vas): 548.7 liters \/ 19.38 cu.ft..\u003c\/li\u003e\u003cli\u003ePeak Diaphragm Displacement Volume (Vd): 556 cc.\u003c\/li\u003e\u003cli\u003eMechanical Compliance of Suspension (Cms): 0.29 mm\/N.\u003c\/li\u003e\u003cli\u003eBL Product (BL): 18.8 T-M.\u003c\/li\u003e\u003cli\u003eDiaphragm Mass Inc. Airload (MMs): 137 grams.\u003c\/li\u003e\u003cli\u003eEfficiency Bandwidth Product (EBP): 79.\u003c\/li\u003e\u003cli\u003eMaximum Linear Excursion (Xmax): 4.8 mm.\u003c\/li\u003e\u003cli\u003eSurface Area of Cone (Sd): 1159 cm2.\u003c\/li\u003e\u003cli\u003eMaximum Mechanical Limit (Xlim): 16 mm.-----------------------------------Recommended Enclosure Volume;\u003c\/li\u003e\u003cli\u003eSealed: N\/a.\u003c\/li\u003e\u003cli\u003eVented: 96-198 liters \/ 3.4-7 cu.ft..\u003c\/li\u003e\u003cli\u003eDriver Volume Displaced: 0.234 cu.ft. \/ 6.62 liters.\u003c\/li\u003e\u003cli\u003eOverall Diameter: 18-in , 457.2 mm.\u003c\/li\u003e\u003cli\u003eBaffle Hole Diameter: 16.56-in , 420.6 mm.\u003c\/li\u003e\u003cli\u003eFront Sealing Gasket: Yes.\u003c\/li\u003e\u003cli\u003eRear Sealing Gasket: Yes.\u003c\/li\u003e\u003cli\u003eMounting Holes Diameter: 0.28-in , 7.1mm.\u003c\/li\u003e\u003cli\u003eMounting Holes B.C.D.: 17.25-in , 438.2mm.\u003c\/li\u003e\u003cli\u003eDepth: 8.15-in , 207 mm.\u003c\/li\u003e\u003cli\u003eNet Weight: 25.2 lbs, 11.43 kg.\u003c\/li\u003e\u003cli\u003eShipping Weight: 28.9 lbs, 13.11 kgs.\u003c\/li\u003e\u003cli\u003eMaterials of Construction.\u003c\/li\u003e\u003cli\u003eCoil Construction: Copper voice coil.\u003c\/li\u003e\u003cli\u003eCoil Former: Polyimide former.\u003c\/li\u003e\u003cli\u003eMagnet Composition: Ferrite magnet.\u003c\/li\u003e\u003cli\u003eCore Details: Vented \u0026amp; extended core.-----------------------------------.\u003c\/li\u003e\u003cli\u003eBasket Materials: Die-cast aluminum basket.\u003c\/li\u003e\u003cli\u003eCone Composition: Paper cone.\u003c\/li\u003e\u003cli\u003eCone Edge Composition: Cloth cone edge.\u003c\/li\u003e\u003cli\u003eDust Cap Composition: Solid composition paper dust cap.\u003c\/li\u003e","brand":"EMINENCE","offers":[{"title":"Default Title","offer_id":47981001539772,"sku":"THUN-OMEGAPRO18A","price":264.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/3832\/2364\/files\/OMEGAPRO18A.jpg?v=1790075346","url":"https:\/\/store.virventures.com\/products\/18-in-pro-audio-subwoofer-4-in-voice-coil-8-ohms-109-oz-ferrite-magnet-vented-scoop-loading-horn-loading","provider":"Virventures","version":"1.0","type":"link"}