The Hertz ES300D.5 is a 12-inch, dual 4-ohm car subwoofer designed for dynamic bass and high SPL (Sound Pressure Level)

• V-cone® Technology: Reduces moving assembly mass and increases sensitivity. 
• Wide-wave spider profile: Provides high mechanical resistance against impulsive stresses. 
• High-density foam surround: Ensures mechanical and acoustical linearity. 
• Dual voice coil configuration: Maximizes the amplifier's power output.
• Butyl rubber gasket and magnet protective cover: Provides ideal coupling to the mounting surface and damps basket resonances. 12-inch size: Suitable for various car audio setups. 
• Dual 4-ohm impedance: Offers flexibility in amplifier selection. 
• Designed for high SPL: Capable of producing loud and impactful bass.