The GZRW 15XSPL is Ground Zero’s flagship 15" SPL subwoofer from the Radioactive Series, built for pure, ground-shaking performance. Designed around a 75 mm (3") copper voice coil, Klippel®-optimized motor, and reinforced paper cone, this beast is made to dominate both street systems and competition builds.
A high-roll surround, 2-layer Polycot spider, and massive dual 170 mm ferrite magnets provide a crushing Xmax of 45 mm and brutal efficiency. With up to 1200W RMS / 1800W SPL power handling, dual 2-ohm coils, and optimized vented enclosure recommendations, the GZRW 15XSPL brings hard-hitting lows and total control, even at extreme output.
Whether you’re building a pressure monster or a daily driver with attitude, this subwoofer is engineered to move serious air and demand attention.
Specifications / Information:
15″ high quality SPL subwoofer
Klippel® optimised
Reinforced paper cone
Long stroke compound surround
Resonance free steel basket
75 mm / 3″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo
Power Handling (RMS/SPL) 1200 / 1800 Watts
Impedance 2x 2 Ohms
Efficiency 87.8 dB
Max. Excursion (Xmax) 45 mm
Mounting depth. 186 mm
Resonance frequency (Fs) 34.1 Hz
Damping ratio (Qts) 0.59
Equiv. air volume (Vas) 63.3 L
The GZRW 15XSPL is Ground Zero’s flagship 15" SPL subwoofer from the Radioactive Series, built for pure, ground-shaking performance. Designed around a 75 mm (3") copper voice coil, Klippel®-optimized motor, and reinforced paper cone, this beast is made to dominate both street systems and competition builds.
A high-roll surround, 2-layer Polycot spider, and massive dual 170 mm ferrite magnets provide a crushing Xmax of 45 mm and brutal efficiency. With up to 1200W RMS / 1800W SPL power handling, dual 2-ohm coils, and optimized vented enclosure recommendations, the GZRW 15XSPL brings hard-hitting lows and total control, even at extreme output.
Whether you’re building a pressure monster or a daily driver with attitude, this subwoofer is engineered to move serious air and demand attention.
Specifications / Information:
15″ high quality SPL subwoofer
Klippel® optimised
Reinforced paper cone
Long stroke compound surround
Resonance free steel basket
75 mm / 3″ copper voice coil
2-layer Polycot spider
IMPP dust cap with 3D structure logo
Power Handling (RMS/SPL) 1200 / 1800 Watts
Impedance 2x 2 Ohms
Efficiency 87.8 dB
Max. Excursion (Xmax) 45 mm
Mounting depth. 186 mm
Resonance frequency (Fs) 34.1 Hz
Damping ratio (Qts) 0.59
Equiv. air volume (Vas) 63.3 L
