The DD Audio Power Tuned 3515i ESP is a 15-inch subwoofer that delivers perfection in sound and performance. Part of the 3500 series, known for sonic accuracy through a combination of low moving mass and ultra-high energy. With features like V-ROM surround, multi-layer spider, 800-degree thermoplastic voice coils, and aluminum cast frame, this subwoofer is a masterpiece of modern sound design. Equipped with the Evolution Subwoofer Package (ESP), the Power Tuned 3515i ESP offers maximum performance in its size class and is ready to deliver an unparalleled soundscape.

Features

• 38 cm (15 inch) subwoofer
• Load capacity (RMS): 1200 watts
• Peak load capacity: 4800 watts
• Impedance options: Dual 2 ohm or Dual 4 ohm
• Patented ferrite magnet system
• Lossless linear suspension
• Ribbed foam surround
• Magnet protection cap including grille before the pole core drilling
• Aluminum die-cast basket

Data

• Speaker size: 38.1 cm
• RMS power: 1200 watts
• Peak power: 4800 watts
• VCD (Entry voltage): 7.62 cm
• Piston diameter: 36.2 cm
• Fs (Frequency): 41 Hz
• Qms: 7.1
• Qes: 1
• Qts: 0.88
• Vas (Volume): 56.86 liters
• Xmech (Mechanical excursion): 62 mm
• Xmax (Maximum excursion): 17.5 mm
• Frame diameter: 42.22 cm
• Frame including gasket: 42.55 cm
• Mounting diameter: 38.58 cm
• Installation depth: 24.45 cm
• Motor diameter: 19.21 cm
• Motor depth: 8.89 cm
• Woofer volume: 0.29 cubic feet (~8.2 liters)
• Enclosure with port: 85.04 – 170.1 liters
• Shipping weight: approximately 19.5 kg
  

The SuperCharge Option

• With the Supercharge option, you hear an even tighter and cleaner bass across the entire power range.
• What exactly happens during SuperCharging? By adding a specially shaped neodymium short-circuit ring on a flush-cut pole piece, with the opposite polarity facing down, you redirect otherwise lost magnetic energy into the voice coil gap. This increases the usable motor strength by 20-25%, allowing smaller, lighter motors to deliver the same drive energy as larger motors.
• You cannot operate a SuperCharged sub with more power, and the SPL value does not increase, but you will hear a cleaner output at higher levels. SuperCharged subwoofers use the power you give them more efficiently, but you still have the same heat dissipation and the same voice coil area. This means that the power handling is the same as the standard model.
• Info: The Supercharge subwoofers are made to order. The delivery time is 4-6 weeks in addition to the specified delivery time.

Features of ESP Subwoofer

• Carbon Fiber Blend Cone (CFB) - The CFB composition uses an effective carbon fiber-based cocktail to provide the highest strength-to-weight ratio in the industry.
• Vario-Density Extended Range of Motion Surround (V-ROM) - Provides ultimate linear control at high excursions while enabling dynamically sounding bass reproduction. The control ribs are compressed to a lower density than the main surround body to allow for a stepless control system. The harder you control it, the more control you gain.
• Tuned Spider System (TSS) - Each suspension is tailored to specific performance characteristics, e.g., High Definition, Power Handling, X-Stiff Control.
• Super-Frame (SFrame) - Maximizes the spider diameter, cone diameter, and suspension travel, acting as a secondary short circuit ring and providing additional heat dissipation for better heat flow from the coil.
• SuperCharge option available!