• Product type: High-performance SPL subwoofer
  
• Model: GZNW 38SPL-D2 (Nuclear Series)
  
• Diameter: 38 cm / 15″
  
• Power handling: 3500W RMS / 7000W max
  
• Impedance: 2 x 2 ohms
  
• Efficiency: 88.2 dB
  
• Power recommendation: 2000 – 7000W
  
• Voice coil: 75 mm / 3″, 4-layer CCA flat wire
  
• Cone: Reinforced paper
  
• Basket: Solid aluminum cast
  
• Spider: 4-layer Nomex
  
• Dust cap: Carbon design
  
• Xmax: 80 mm / 3.15″
  
• Mounting diameter: 358 mm / 14.09″
  
• Mounting depth: 269 mm / 10.59″
  
• Resonance frequency (Fs): 36.5 Hz
  
• Qts: 0.61
  
• Vas: 63.3 L / 2.24 cu.ft.
  
• Verification: Klippel® optimized

• Massive 80 mm Xmax gives it the excursion needed for serious low-frequency output
  
• 4-layer 3 inch CCA voice coil is built to cope with real amplifier power
  
• Heavy-duty cast basket helps keep the structure stable under extreme load
  
• 4-layer Nomex spider supports control and durability at high excursion
  
• Dual 2 ohm configuration gives flexible amplifier matching for high-power systems

• Vented enclosure: 95L net / 3.35 cu.ft.
  
• Port (dimensions): 2 x 10 cm / 2 x 4"
  
• Port length: 7.48"
  
• Fb / F3 (-3 dB): 44 Hz / 35 Hz

* Above-mentioned enclosure recommendations are just a few possible variations. Please note that you should find the perfect tuning, especially port length, based on your car and own taste.

• High-output daily systems using serious mono amplification
  
• SPL-focused builds wanting a hard-hitting 15 inch substage
  
• Systems chasing maximum bass authority and output
  
• Large enclosure builds designed around impact and pressure
  
• Installations with the electrical support to run substantial power properly

This is just a seriously capable subwoofer all round. The power handling is there, the excursion is there, and the mechanical build looks exactly like what you want to see when a driver is meant to live in a real high-output system. It has the hardware to hit hard, stay composed, and actually back up the numbers with usable performance.