Eminence DP18 Subwoofer Speaker (500 Watts, 18")

Nominal Basket Diameter: 18 in., 457 mm

Nominal Impedance*: 4 or 8 ohms

Power Rating**: 500 Watts

Music Program: 1000 Watts

Resonance: 28Hz

Usable Frequency Range***: 37Hz-250Hz

Sensitivity: 96dB

Magnet Weight: 67 oz

Gap Height: .38 in.,9.53 mm

Voice Coil Diameter: 2.5 in., 63.5 mm

Thiele and Small Parameters
Resonant Frequency (fs): 28Hz

DC Resistance (Re): 5.3

Coil Inductance (Le): 3.43mH

Mechanical Q (Qms): 10.38

Electromagnetic Q (Qes): .33

Total Q (Qts): .32

Compliance Equivalent Volume (Vas): 493.19 ltr/17.41 cu. ft.

Peak Diaphragm Displacement Volume (Vd): 796.00cc

Mechanical Compliance of Suspension (Cms): .25mm/N

BL Product (BL): 18.9 T-M

Diaphragm Mass inc. Airload (Mms): 128.1 grams

Efficiency Bandwidth Product (EBP): 84

Maximum Linear Excursion (Xmax): 6.7mm

Surface Area of Cone (Sd): 1188.0cm

Maximum Mechanical Limit (Xlim): 15.0m

Mounting Information
Recommended Enclosure Volume:
- Sealed: N/A
- Vented: 85-297 ltr/3.0-10.5 cu. ft.

Overall Diameter: 18.00 in., 457.20 mm

Baffle Hole Diameter: 16.57 in., 420.88 mm

Front Sealing Gasket: Fitted as Standard

Rear Sealing Gasket: Fitted as Standard

Mounting Holes Diameter: .28 in., 7.11 mm

Mounting Holes B.C.D.: 17.25 in., 438.15mm

Depth: 8.13 in., 206.50mm

Net Weight: 17.00 lbs, 7.71 kg

Shipping Weight: 20.5 lbs, 9.3 kg

Materials of Construction
Coil Construction: Copper

Coil: Polyimide

Magnet Composition: Ferrite

Core Details: Vented and Extended

Basket Materials: Die-Cast Aluminum

Cone Composition: Paper

Cone Edge Composition: Cloth

Dust Cap Composition: Solid Composition Paper

* Please inquire about alternative impedances.
** Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, nontemperature-controlled environment.
*** The average output across the usable frequency range when applying 1W/1m into the nominal impedance. Ie: 2.83 V/8 ohms, 4 V/16 ohms.
Dimensions and Weight in Packaging
Blemished, 4 Ohms
Shipping Weight: 19.75 lbs
Shipping Dimensions: 20 x 19 x 9 in
Manufacturer Part Number (MPN): Delta Pro-18C
8 Ohms
Shipping Weight: 19.25 lbs
Shipping Dimensions: 20 x 20 x 9 in
Manufacturer Part Number (MPN): Delta Pro-18A
If you have additional warranty questions, please contact the manufacturer at 502-845-5622
(4 ratings)
Submitted September 22, 2012 by Maurice Jackson in tampa, FL
"Delta pro 18 speaker"
Verified Customer zZounds has verified that this reviewer made a purchase from us.
the usual line with most things is you get what you pay for. In this case you far more get than what you pay for. This driver in the right cabinet sitting on the floor will pound as hard as the jbl, ev, etc. In reality this is the only 18 inch speaker you would ever need. Roll off from 40 hz down and make sure you don't under power it you will be happy
Musical Background:
sound engineer 30 years
Musical Style:
all styles
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