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15" HDX3 Series Subwoofer – Dual 2Ω

• Model: HDX3-15-D2
• Series: HDX3
• Size: 15" Subwoofer
• Voice Coil: 3" high-temperature Dual 2Ω copper coils
• Power Handling:
– 2000W RMS
– 4500W Peak
• Suspension:
– High-roll surround for maximum excursion
– Dual-layer progressive spider for durability and control at extreme power
• Motor:
– Massive ferrite motor with vented pole for optimized cooling
– Engineered for brutal low-end performance and daily high-output use
• Terminals: Heavy-duty push terminals
• Application: Designed for extreme bass setups, SPL-style builds, and high-power ported enclosures requiring deep, aggressive low-frequency output

Model HDX312 HDX315 HDX318
RMS Power 1500 W  1500 W  1500 W
Peak Power 4500 W  4500 W  4500 W
Magnet Weight 300 oz  300 oz  300 oz
Coil Diameter 3"  3"  3"
Coil Length 50 mm  50 mm  50 mm
Usable Throw 68 mm  68 mm  68 mm
Woofer Size 12" 15" 18"
F(s) 26.92 Hz 26 Hz 27.59 Hz
Impedance D1 / D2 D1 / D2 D1 / D2
Z(max) 70.16 Ohm 63.8 Ohm 55.47 Ohm
Q(ms) 4.95 4.847 5.777
Q(es) 0.3409 0.3665 0.4724
Q(ts) 0.3189 0.3408 0.4367
V(as) 28.59 Liters 78.08 Liters 168.6 Liters
L(e) 2.553 2.711 2.563
n(0) 15.60% 33.96% 71.46%
M(ms) 440.9 grams 472.8 grams 410.9 grams
C(ms) 0.079 0.082 0.081
Sensitivity 1W/1m 84.03 dB 87.41 dB 90.64 dB
BL 31.45 30.49 25.14
Xmax 36mm 36mm 36mm
Sd 0.051 m2 0.082 m2 .121 m2
Displacement 0.16³ 0.18³ 0.23³
Mounting Depth 8 7/8" 9 1/2" 10.5"
Circle Cutout 11 1/2" 13 7/8" 16 9/16"
Ported Enclosure (Cu Ft): 1.75-2.75 FT³ 3-6 FT³ 5-7 FT³

Dealer Resources 

Customer Service

South Carolina Branch

  • Address: 804 Center St. West Columbia, SC 29169 USA
  • Email: sales@umdistributors.com
  • Sales: (803) 333-9475 
    Tech: (800) 425-0753 ext. 3
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