• Product type: High-quality SPL subwoofer
  
• Series: Radioactive Series
  
• Model: GZRW 8XSPL
  
• Diameter: 20 cm / 8″
  
• Power handling: 500W RMS / 1000W max
  
• Impedance: 2 x 2 ohms
  
• Efficiency: 84.6 dB
  
• Power recommendation: 400 – 1000W
  
• 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: 182 mm / 7.17″
  
• Mounting depth: 133 mm / 5.24″
  
• Resonance frequency (Fs): 45.8 Hz
  
• Qts: 0.36
  
• Vas: 7.4 L / 0.26 cu.ft.
  
• Verification: Klippel® optimized

• Compact 8 inch format gives strong bass output without needing a large substage
  
• Long-stroke design helps it deliver more low-frequency authority than a typical small woofer
  
• Dual 2 ohm configuration suits compact mono amplifier setups well
  
• Reinforced paper cone and copper voice coil give it proper subwoofer hardware, not just midbass capability
  
• Works in a practical vented enclosure size while still delivering meaningful output

• Vented enclosure: 25L net / 0.883 cu.ft.
  
• Port: 1 x 8 cm / 3.15"
  
• Port length: 8.89"
  
• F3: 38 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.

• Compact daily systems needing real subwoofer performance
  
• Smaller vehicles and space-conscious installs
  
• Builds where a 10 or 12 inch sub is not practical
  
• Users wanting stronger bass from a compact enclosure
  
• Installations using serious power in a smaller substage format

This is a well-judged sub for builds where space, power, and output all need to stay in balance. It makes sense as an all-round compact subwoofer because it still delivers proper bass performance without demanding the enclosure size of a larger driver.