4x Eminence DELTA PRO-12A 12" Midrange, Full-Range, Midbass, Monitor Woofer 800 W

SPECIFICATION

Nominal Basket Diameter

• 12", 305 mm

Nominal Impedance*

• 8 Ω

Power Rating*

Program Power

• 800 W

Watts

• 400 W

Resonance

• 51 Hz

Usable Frequency Range

• 52 Hz - 4.5 kHz

Sensitivity*

• 99.2 dB

Magnet Weight

• 80 oz.

Gap Height

• 0.375", 9.5 mm

Voice Coil Diameter

• 2.5", 64 mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

• 51 Hz

DC Resistance (Re)

• 5.71 Ω

Coil Inductance (Le)

• 0.84m H

Mechanical Q (Qms)

• 7.56

Electromagnetic Q (Qes)

• 0.37

Total Q (Qts)

• 0.35

Compliance Equivalent Volume (Vas)

• 81.7 liters / 2.89 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

• 242 cc

Mechanical Compliance of Suspension (Cms)

• 0.21 mm/N

BL Product (BL)

• 15.3 T-M

Diaphragm Mass Inc. Airload (MMs)

• 48 grams

Efficiency Bandwidth Product (EBP)

• 138

Maximum Linear Excursion (Xmax)

• 4.6 mm

Surface Area of Cone (Sd)

• 532.4 cm2

Maximum Mechanical Limit (Xlim)

• 13.7 mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

• 28-35 liters / 1-1.25 cu.ft.

Vented

• 31-91 liters / 1.1-3.2 cu.ft.

Driver Volume Displaced

• 0.09 cu.ft. / 2.55 liters

Overall Diameter

• 12.38", 314.5 mm

Baffle Hole Diameter

• 11.07", 281.2 mm

Front Sealing Gasket

• Yes

Rear Sealing Gasket

• Yes

Mounting Holes Diameter

• 0.27", 6.9mm

Mounting Holes B.C.D.

• 11.69", 296.9mm

Depth

• 6.22", 158 mm

Net Weight

• 16.3 lbs, 7.39 kg

Shipping Weight

• 18 lbs, 8.16 kgs

MATERIALS OF CONSTRUCTION

Coil Construction

• Aluminum voice coil

Coil Former

• Polyimide former

Magnet Composition

• Ferrite magnet

Core Details

• Vented and extended core

Basket Materials

• Die-cast aluminum basket

Cone Composition

• Paper cone

Cone Edge Composition

• Cloth cone edge

Dust Cap Composition

• Solid composition paper dust cap