Description: Recommended for professional audio and bass guitar applications as a woofer in a vented enclosure. Also works well for PA in a sealed or bandpass enclosure. Woofer | Midbass | Midrange | Pro Audio | Home Stereo | Home Theater | Bass Guitar Box Type: Sealed | Vented | Horn Loading SPECIFICATIONNominal Basket Diameter12", 305 mmNominal Impedance*8 ΩPower Rating*Program Power500 WWatts250 WResonance47 HzUsable Frequency Range43 Hz - 3.8 kHzSensitivity*98 dBMagnet Weight38 oz.Gap Height0.312", 7.9 mmVoice Coil Diameter2", 51 mmTHIELE & SMALL PARAMETERSResonant Frequency (fs)47 HzDC Resistance (Re)5 ΩCoil Inductance (Le)0.64m HMechanical Q (Qms)6Electromagnetic Q (Qes)0.5Total Q (Qts)0.46Compliance Equivalent Volume (Vas)120.1 liters / 4.24 cu.ft.Peak Diaphragm Displacement Volume (Vd)237 ccMechanical Compliance of Suspension (Cms)0.29 mm/NBL Product (BL)10.8 T-MDiaphragm Mass Inc. Airload (MMs)40 gramsEfficiency Bandwidth Product (EBP)94Maximum Linear Excursion (Xmax)4.4 mmSurface Area of Cone (Sd)538.9 cm2Maximum Mechanical Limit (Xlim)11 mmMOUNTING INFORMATIONRecommended Enclosure VolumeSealed25.5-35.4 liters / 0.9-1.25 cu.ft.Vented36.8-139 liters / 1.3-4.9 cu.ft.Driver Volume Displaced0.071 cu.ft. / 2 litersOverall Diameter12.03", 305.6 mmBaffle Hole Diameter11.07", 281.2 mmFront Sealing GasketYesRear Sealing GasketYesMounting Holes Diameter0.25", 6.4mmMounting Holes B.C.D.11.59", 294.4mmDepth5.5", 139.7 mmNet Weight7.5 lbs, 3.4 kgShipping Weight9.7 lbs, 4.4 kgsMATERIALS OF CONSTRUCTIONCoil ConstructionCopper voice coilCoil FormerPolyimide formerMagnet CompositionFerrite magnetCore DetailsVented and extended core Basket MaterialsPressed steel basketCone CompositionPaper coneCone Edge CompositionCloth cone edgeDust Cap CompositionSolid composition paper dust cap
Price: 119.99 USD
Location: Norwalk, California
End Time: 2024-11-09T10:41:02.000Z
Shipping Cost: 2.99 USD
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Item Specifics
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Unit Type: Unit
Unit Quantity: 1
Compatible Brand: Universal
Type: Woofer
MPN: BETA-12A
Brand: Eminence
Impedance: 8
Power RMS (Watts): 250
Power Max (Watts): 500
Frequency Range: 43Hz - 3.8Khz
Sensitivity (dB): 98
Magnet Weight (oz): 38
Gap Height (mm): 7.9
VoiceCoilDia (in): 2
Resonant Frequency (fs) Hz: 47
DC Resistance (Re): 5
Coil Inductance (Le) mH: 0.64
Mechanical Q (Qms): 6
Electromagnetic Q (Qes): 0.5
Total Q (Qts): 0.46
Compliance Equivalent Volume (Vas) ltr: 120.1
Compliance Equivalent Volume (Vas) cuft: 4.24
Peak Diaphragm Displacement Volume (Vd): 237
Mechanical Compliance of Suspension (Cms) mm/N: 0.29
BL Product (BL) T-M: 10.8
Diaphragm Mass Inc. Airload (MMs) grams: 40
Efficiency Bandwidth Product (EBP): 94
Maximum Linear Excursion (Xmax) mm: 4.4
Surface Area of Cone (Sd) cm2: 538.9
Maximum Mechanical Limit (Xlim) mm: 11
Driver Volume Displaced (liters): 2
Overall Diameter (in): 12.03
Baffle Hole Diameter (in): 11.07
Screw Holes Diameter (in): 0.25
Mounting Hole Centers across (in): 11.59
Depth (in): 4.57
Net Weight (lbs): 7.5
Ship Weight (lbs): 9.7
Coil Construction: Copper voice coil
Coil Former: Polyimide former
Magnet Material: Ferrite magnet
Basket Material: Pressed steel basket
Cone Composition: Paper cone
