For all bass applications. Nominal Basket Diameter Impedance Power RatingResonanceUsable Frequency RangeSensitivityMagnet WeightGap HeightVoice Coil Diameter
Mounting Information Overall Diameter Baffle Hole Diameter Front Sealing GasketRear Sealing Gasket Mounting Holes Diameter Mounting Holes B.C.D. DepthShipping Weight
Thiele-Small ParametersResonant Frequency (fs)Impedance (Re) Coil Inductance (Le)Electromagnetic Q (Qes)Mechanical Q (Qms)Total Q (Qts)Compliance Equivalent Volume (Vas)Peak Diaphragm Displacement Volume (Vd)Mechanical Compliance of Suspension (Cms)BL Product (BL)Diaphragm Mass inc. Airload (Mms)Equiv. Resistance of Mechanical Suspension Loss (Rms)Efficiency Bandwidth Product (EBP)Voice Coil Overhang (Xmax)Surface Area of Cone (Sd)Impedance at Resonance (Zmax)Maximum Mechanical Limit (Xmech)
8", 203.2mm 8
8.22", 208.8mm7.19", 182.5mmfitted as standardfitted as standard0.218", 5.5mm7.75", 196.9mm3.25", 82mm5.1lbs., 2.3 kg.
545Hz7.43 ohms0.37mH2.788.172.070.61 liters0.02 cu. ft.0cc0.01mm/N9.1 T-M9 grams3.76N*sec/M1960mm214.1cm229 ohms9.40mm
Eminence response curves are measured under the following controlled test conditions:
To download spec sheets: Alpha 8MR
Ideal for building into bass enclosures to extend the range of a cabinet, creating an economical two-way system.The closed-back basket does not need a separate enclosure.__________________
Materials of Construction
Kapton coil former for increased rigidity and thermal protection
Polyamide-imide coated two-layer, 34ga., copper voice coil for improved power handling and durability.
Premium pressed steel basket with closed back to enable a two-way system without a separate enclosure for the midrange driver
Paper cone edge
Solid composition paper dust cap