Eminence ALPHA-8A 8″ 8ohm Pro Audio Woofer Midrange Speaker 250W 1.5 in VC
Eminence ALPHA-8A 8″ 8ohm Pro Audio Woofer Midrange Speaker 250W 1.5 in VC
Specifications
| Return Shipping Will Be Paid By | Seller |
| All Returns Accepted | Returns Accepted |
| Item Must Be Returned Within | 30 Days |
| Unit Type | Unit |
| Compatible Brand | Universal |
| Type | Woofer |
| MPN | ALPHA-8A |
| Brand | Eminence |
| Power RMS (Watts) | 125 |
| Power Max (Watts) | 250 |
| Frequency Range | 58Hz - 5Khz |
| Gap Height (mm) | 6.4 |
| VoiceCoilDia (in) | 1.5 |
| DC Resistance (Re) | 5.3 |
| Coil Inductance (Le) MH | 0.44 |
| Mechanical Q (Qms) | 4.6 |
| Electromagnetic Q (Qes) | 0.68 |
| Total Q (Qts) | 0.59 |
| Compliance Equivalent Volume (Vas) Ltr | 17.7 |
| Compliance Equivalent Volume (Vas) Cuft | 0.63 |
| Mechanical Compliance Of Suspension (Cms) Mm/N | 0.28 |
| BL Product (BL) T-M | 7.8 |
| Efficiency Bandwidth Product (EBP) | 107 |
| Maximum Linear Excursion (Xmax) Mm | 3.2 |
| Surface Area Of Cone (Sd) Cm2 | 210 |
| Maximum Mechanical Limit (Xlim) Mm | 7.1 |
| Driver Volume Displaced (liters) | 0.58 |
| Overall Diameter (in) | 8.24 |
| Baffle Hole Diameter (in) | 7.13 |
| Screw Holes Diameter (in) | 0.22 |
| Mounting Hole Centers Across (in) | 7.75 |
| Depth (in) | 3.25 |
| Net Weight (lbs) | 4.3 |
| Ship Weight (lbs) | 5.1 |
| Coil Construction | Copper voice coil |
| Coil Former | Polyimide former |
| Magnet Material | Ferrite magnet |
| Basket Material | Pressed steel basket |
| Cone Composition | Paper cone |
Recommended for professional audio mid-range applications in a sealed cabinet, or as a mid-bass in a vented satellite enclosure. SPECIFICATIONNominal Basket Diameter4", 102 mmNominal Impedance*8 ΩPower Rating*Program Power110 WWatts55 WResonance123 HzUsable Frequency Range105 Hz - 12 kHzSensitivity*88 dBMagnet Weight10 oz.Gap Height0.144", 3.7 mmVoice Coil Diameter1", 25 mmTHIELE & SMALL PARAMETERSResonant Frequency (fs)123 HzDC Resistance (Re)6.73 ΩCoil Inductance (Le)0.28m HMechanical Q (Qms)6.83Electromagnetic Q (Qes)0.84Total Q (Qts)0.75Compliance Equivalent Volume (Vas)1.94 liters / 0.07 cu.ft.Peak Diaphragm Displacement Volume (Vd)15 ccMechanical Compliance of Suspension (Cms)0.42 mm/NBL Product (BL)4.94 T-MDiaphragm Mass Inc. Airload (MMs)4 gramsEfficiency Bandwidth Product (EBP)146Maximum Linear Excursion (Xmax)2.6 mmSurface Area of Cone (Sd)57.7 cm2Maximum Mechanical Limit (Xlim)4.5 mmMOUNTING INFORMATIONRecommended Enclosure VolumeSealed1.87-8.5 liters / 0.07-0.3 cu.ft.Vented2.27-4.25 liters / 0.08-0.15 cu.ft.Driver Volume Displaced0.012 cu.ft. / 0.33 litersOverall Diameter4.57", 116.1 mmBaffle Hole Diameter3.77", 95.8 mmFront Sealing GasketYesRear Sealing GasketYesMounting Holes Diameter0.15", 3.8mmMounting Holes B.C.D.4.25", 108mmDepth2.31", 58.7 mmNet Weight1.5 lbs, 0.68 kgShipping Weight3.3 lbs, 1.5 kgsMATERIALS OF CONSTRUCTIONCoil ConstructionCopper voice coilCoil FormerPolyimide formerMagnet CompositionFerrite magnetCore DetailsNon-Vented core Basket MaterialsPressed steel basketCone CompositionPaper coneCone Edge CompositionCloth cone edgeDust Cap CompositionSolid composition paper dust cap
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