The Ground Zero Hydrogen 15 Inch Subwoofer GZHW 38XSPL-D2 is built for serious SPL performance in the Hydrogen series, delivering hard hitting output with the authority expected from a competition focused sub. Designed around a 15 inch reinforced paper cone and solid aluminium cast basket, this subwoofer combines strength, control, and efficiency to produce powerful low end impact in high output systems. Its dual voice coil design and 2 plus 2 ohm impedance provide flexible wiring options for custom installations.

With a massive RMS rating of 1500 watts and peak handling up to 3500 watts, the GZHW 38XSPL-D2 is engineered for intense bass reproduction when paired with the right amplifier. A 75 mm 3 inch copper voice coil, long stroke compound surround, and Klippel optimised construction help maintain control under heavy load, while the 87 dB sensitivity ensures strong output. The mounting depth of 231 mm and 360 mm cut out make it suitable for purpose built enclosures, with a recommended sealed box volume of 1.41 cu/ft or 40 litres.

Whether you are building an SPL demo vehicle or a high performance bass system, this Hydrogen series subwoofer is designed to deliver deep, loud, and precise low frequencies. The combination of premium materials and advanced engineering gives it the durability needed for demanding daily use and competition style applications.

Features & Benefits

• Hydrogen series SPL subwoofer built for extreme bass performance
• 15 inch reinforced paper cone for strong, responsive low frequency output
• Solid aluminium cast basket for excellent rigidity and durability
• 75 mm 3 inch copper voice coil handles high power with thermal stability
• Dual 2 plus 2 ohm voice coils for flexible system wiring
• Klippel optimised design for improved control and performance