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Eminence Delta-12A - 8 ohm 12" 400W Pro Audio Woofer

Eminence Delta-12A - 8 ohm 12" 400W Pro Audio Woofer
Ship weight
6.14 kg
Priced per:
8 ohm
Your price:
CDN $128.97
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Recommended for professional audio as a mid-bass or woofer (with high-pass filter) in vented enclosures.

Speaker Detail
Nominal Basket Diameter12", 305 mm
Nominal Impedance*8 Ω
Power Rating*
Program Power800 W
Watts400 W
Resonance55 Hz
Usable Frequency Range54 Hz - 5 kHz
Sensitivity*98.3 dB
Magnet Weight56 oz.
Gap Height0.37", 9.5 mm
Voice Coil Diameter2.5", 64 mm
Thiele & Small Parameters
Resonant Frequency (fs)55 Hz
DC Resistance (Re)6.3 Ω
Coil Inductance (Le)0.74m H
Mechanical Q (Qms)5.27
Electromagnetic Q (Qes)0.46
Total Q (Qts)0.43
Compliance Equivalent Volume (Vas)81.3 liters / 2.87 cu.ft.
Peak Diaphragm Displacement Volume (Vd)125 cc
Mechanical Compliance of Suspension (Cms)0.21 mm/N
BL Product (BL)13.5 T-M
Diaphragm Mass Inc. Airload (MMs)39 grams
Efficiency Bandwidth Product (EBP)120
Maximum Linear Excursion (Xmax)2.4 mm
Surface Area of Cone (Sd)519.5 cm2
Maximum Mechanical Limit (Xlim)9.9 mm
Mounting Information
Recommended Enclosure Volume
Sealed N/a
Vented 25.5-85 liters / 0.9-3 cu.ft.
Driver Volume Displaced0.079 cu.ft. / 2.25 liters
Overall Diameter12.03", 305.6 mm
Baffle Hole Diameter11.07", 281.2 mm
Front Sealing GasketYes
Rear Sealing GasketYes
Mounting Holes Diameter0.25", 6.4mm
Mounting Holes B.C.D.11.59", 294.4mm
Depth5.35", 135.9 mm
Net Weight11.4 lbs, 5.17 kg
Shipping Weight13.5 lbs, 6.12 kgs
Materials of Construction
Coil ConstructionAluminum voice coil
Coil FormerPolyimide former
Magnet CompositionFerrite magnet
Core DetailsVented core
Basket MaterialsPressed steel basket
Cone CompositionPaper cone
Cone Edge CompositionCloth cone edge
Dust Cap CompositionSolid composition felt dust cap
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