Ground Zero GZPW Reference 250 - 25cm high-end subwoofer

500 Watt RMS

25 cm high-end sound quality subwoofer with cast aluminum basket and coated paper membrane

• 25 cm high-end SQ subwoofer
• Klippel optimized
• 3-layer sandwich membrane
• Light rubber surround
• Cast aluminum basket
• 50 mm copper voice coil
• 2-layer Bimax centering
• Dust cap made of coated paper

Technical data

• Model: GZPW Reference 250
• Diameter: 25 cm / 10"
• Installation opening: 235 mm / 9.25"
• Installation depth: 128 mm / 5.04"
• Voice coil: 50 mm round wire / 2" 
• Membrane: 3 layer sandwich
• Power handling: 500 WRMS
• Impedance: 2 x 2 Ohm
• SPL: 86.4 dB
• Xmax: 40 mm / 1.57"
• Fs: 26.1 Hz
• Qts: 0.34
• Vas: 57.8 L / 2.04 cu.ft.
• Sound Quality*: + + + + + +
• Deep bass performance 20 - 50 Hz*: + + + + + +
• Upper bass performance 50 - 80 Hz*: + + + + + +
• Bass reflex enclosure recommendation: See technical data info 
• Closed enclosure recommendation: See technical data info 

*Describes the suitability of the subwoofer in the corresponding area.

+ = Good suitability

+ + + + + + = Excellent suitability