15 in. Neodymium Magnet 300 watts RMS

DELTALITE�-II 2515    

SPECIFICATION  

 Nominal Basket Diameter 15", 381mm

Nominal Impedance* 8 ohms

Power Rating   Watts 300W

Music Program 600W

Resonance 42Hz Usable

Frequency Range 54Hz-3.7kHz

Sensitivity*** 99.2

Magnet Weight 7 oz.

Gap Height 0.275", 7mm

Voice Coil Diameter 2.5", 63.5mm    

THIELE & SMALL PARAMETERS  

Resonant Frequency (fs) 42Hz

Download PDF Spec Sheet

Download PDF Cabinet Design

 

DC Resistance (Re) 5.29

Coil Inductance (Le) 1.15mH

Mechanical Q (Qms) 4.56

Electromagnetic Q (Qes) 0.41

Total Q (Qts) 0.38

Compliance Equivalent Volume (Vas) 204 liters / 7.2 cu.ft.

Peak Diaphragm Displacement Volume (Vd) 411cc

Mechanical Compliance of Suspension (Cms) 0.20mm/N

BL Product (BL) 15.7 T-M

Diaphram Mass inc. Airload (Mms) 72 grams

Efficiency Bandwidth Product (EBP) 103

Maximum Linear Excursion (Xmax) 4.8mm

Surface Area of Cone (Sd) 856.3 cm2  

Maximum Mechanical Limit (Xlim) 9.0mm        

MOUNTING INFORMATION    

Recommended Enclosure    

Sealed 42.5-48 liters/1.5-1.7cu.ft.  

Vented 51-119 liters/1.8-4.2cu.ft.  

Overall Diameter 15.32", 389mm  

Baffle Hole Diameter 14.0", 355.6mm  

Front Sealing Gasket fitted as standard  

Rear Sealing Gasket fitted as standard  

Mounting Holes Diameter 0.28", 7mm  

Mounting Holes B.C. D. 14.56", 369.9mm  

Depth 6.81", 173mm  

Net Weight 5.7 lbs., 2.6 kg  

Shipping Weight 7.9 lbs., 3.6 kg        

MATERIALS OF CONSTRUCTION    

Coil Construction Aluminum voice coil  

Coil Former Polyimide former  

Magnet Composition Neodymium magnet  

Core Details Vented core  

Basket Materials Die-cast aluminum basket/ heatsink  

Cone Composition Paper Cone  

Cone Edge Composition Cloth cone edge  

Dustcap Composition Solid composition paper dust cap        

FOOTNOTES    

*	Please consult www.eminence.com for specifications of models with alternative impedances.
**	Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, non-temperature controlled environment.
***	The average output across the usable frequency range when applying 1W/1M into the nominal impedance. Ie: 2.83V/8ohms, 4V/16ohms. Eminence response curves are measured under the following conditions: All speakers are tested at 1w/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25� supplied microphone (software calibrated) mounted 1m from wall/baffle | 2ft. X 2ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Hafler P1500 Trans-Nova amplifier | 2700 cu.ft. chamber with fiberglass on all six surfaces (three with custom-made wedges).
****	BETA 8CX, 10CX, 12CX and ACOUSTINATOR� CX2008 are coaxial speakers with tweeter sold separately. Published Usable Frequency response contingent upon use of APT 50 HF Driver.