4215 D2 - 15IN - SUB

4000 Series 15-Inch Subwoofer for Small Vented Enclosures

• Optimal Power Range:

  • Handles 500W – 1,500W for robust and consistent performance

• Key Features:

  • 3-Inch Voice Coil for exceptional thermal management and high power handling

  • Triple Stack 225oz Motor provides powerful magnetic force for precise bass control

  • 23.5mm Xmax delivers extended excursion and impactful low frequencies

  • Double high-current tinsel leads for reliable high-load performance

  • Nomex Spider ensures durability and stability during heavy use

  • Specifically designed for small vented enclosures to optimize bass output

  • Proudly engineered in the USA

• Performance-Driven Design:

  • The 4000 Series 15 balances damping and motor force to deliver high efficiency and versatility, making it ideal for a variety of real-world applications.

• Technical Specifications:

  • Fs (Resonance Frequency): 32.27 Hz

  • Qts (Total Q Factor): 0.483

  • Qms (Mechanical Q Factor): 5.779

  • Qes (Electrical Q Factor): 0.527

  • Vas (Compliance Equivalent Volume): 43.73 L

  • Sd (Effective Piston Area): 776.35 sq cm

  • BL (Force Factor): 27.90 Tm

  • Re (DC Resistance): 4.298 ohms

  • Le (Inductance): 2.738 mH

  • SPL (Efficiency): 86.44 dB

  • EBP (Efficiency Bandwidth Product): 61.19

• Physical Dimensions:

  • Nominal Diameter: 15 in

  • Mounting Hole Diameter: 14.17 in / 359.92 mm

  • Motor Outer Diameter: 7.72 in / 196 mm

  • Driver Displacement: 0.157 cu ft / 4.47 L

• Enclosure Recommendations:

  • Minimum Vented Volume: 1.82 cu ft, with adjustable tuning for desired bass response

  • Not recommended for sealed enclosures

This 4000 Series 15-inch subwoofer offers a combination of powerful performance, high excursion, and precise engineering, making it ideal for enthusiasts seeking deep, impactful, and dynamic bass. Perfect for small vented enclosures, it’s a standout solution for superior low-frequency performance. Upgrade your system today!