• Product type: High-quality SPL subwoofer
  
• Series: Radioactive Series
  
• Model: GZRW 6XSPL
  
• Diameter: 16.5 cm / 6.50″
  
• Power handling: 350W RMS / 700W max
  
• Impedance: 2 x 2 ohms
  
• Efficiency: 79 dB
  
• Power recommendation: 250 – 700W
  
• Voice coil: 50 mm / 2″ copper
  
• Cone: Reinforced paper
  
• Surround: Long stroke compound surround
  
• Basket: Resonance-free steel
• Spider: Polycot
  
• Dust cap: IMPP with 3D structure logo
  
• Xmax: 22 mm / 0.866″
  
• Mounting diameter: 147 mm / 5.79″
  
• Mounting depth: 99 mm / 3.90″
  
• Resonance frequency (Fs): 49.5 Hz
  
• Qts: 0.621
  
• Vas: 2.2 L / 0.078 cu.ft.
  
• Verification: Klippel® optimized

• Compact 6.5 inch format makes real bass possible in extremely limited spaces
  
• Long-stroke design gives the driver far more low-frequency capability than a typical small woofer
  
• Dual 2 ohm configuration gives useful flexibility for compact mono amplifier setups
  
• Reinforced paper cone and copper voice coil support proper subwoofer duty, not just midbass use
  
• Can work in very small vented enclosures while still delivering meaningful output

• Vented enclosure: 20L net / 0.71 cu.ft.
  
• Port: 1 x 7 cm / 2.75"
  
• Port length: 17.72"
  
• F3: 28 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.

• Ultra-compact substage builds
  
• Motorcycles, small vehicles, and tight custom installs
  
• Systems where enclosure space is extremely limited
• Users wanting real subwoofer performance from a very small driver
  
• Installations where a conventional 10 or 12 inch sub is not practical

The big appeal here is that it can deliver real low-end output without needing much space. That is what makes it interesting, because most drivers this size are a compromise first and a subwoofer second.