Subwoofer GZHW 30-D1

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12 inch high-performance bass subwoofer with cast aluminum basket and reinforced paper cone

• 12 inch subwoofer
• Klippel® optimized
• Reinforced paper cone
• Long stroke, U-shaped surround
• Solid cast aluminum basket
• 75 mm / 3″ copper voice coil
• 2-layer Polycot spider
• Carbon dust cap

• Model	High-performance subwoofer
  Diameter	30 cm / 12″
  Power Handling (RMS/SPL)	1500 / 3000 Watts
  Impedance	2 x 1 Ohms
  Efficiency	85 dB
  Power Recommendation	1000 – 3000 Watts
  Voice Coil	75 mm / 3″ copper
  Cone	Reinforced paper
  Maximum Excursion (Xmax)	45 mm / 1.77″
  Mounting Diameter	284 mm / 11.18″
  Mounting Depth	198 mm / 7.80″
  Resonant Frequency (Fs)	39.1 Hz
  Overall Quality (Qts)	0.56
  Equivalent Air Volume (Vas)	17.6 L / 0.62 ft³

• https://www.ground-zero-audio.com/wp-content/uploads/GZHW-30-D1-D2_OM_AWV4.0.pdf