🔥 Limited Time — $100 Off · Sale Price $1,619.98 · Regular $1,719.98
Saint Nordic · Bass Packages
SINGLE 10"
HYDROGEN KIT.
A complete Ground Zero high-output bass system — the GZHW 25XSPL-D2 SPL subwoofer, GZIA 1500.1 amplifier, sealed enclosure, signal interface, amp kit, and professional installation. Built for drivers who want serious output.
Regular Price
$1,719.98
✓ Save $100
Installed package pricing · Includes everything listed below · Professional installation at Saint Nordic
Everything Included
6 Items
Complete System Package
EVERYTHING
INCLUDED.
The Hydrogen Kit is a high-output bass system built around Ground Zero's GZHW 25XSPL-D2 SPL subwoofer — a 1200W RMS driver designed for drivers who want serious bass. Every component was selected to work together — matched power levels, proper signal handling, correct wiring gauge, and a sealed enclosure tuned for the subwoofer. Nothing to source separately. Nothing left to figure out.
Subwoofer
Ground Zero Hydrogen SPL 10" Subwoofer
GZHW 25XSPL-D2
1200W RMS · Dual 2-ohm voice coils · 63mm copper voice coil · Klippel® optimized · Reinforced cone · Long-stroke compound surround · Solid aluminum cast basket · High-output SPL design
Amplifier
Ground Zero Iridium Mono Amplifier
GZIA 1500.1
1500W CEA @ 1Ω · Class D · 1-ohm stable · GZ-PowerBalance regulation · Variable active crossover · Bass boost · High-level input with auto-on · Triple protection circuit · Bass remote included
Enclosure
Sealed Subwoofer Enclosure
Custom Fit
Sealed enclosure matched to the GZHW 25XSPL-D2 for tight, accurate bass response. Sealed design provides better power handling and more precise low-frequency control than ported alternatives.
Signal Interface
Wavtech Link2 Signal Interface
LINK2
High-to-low level signal converter that takes your factory or aftermarket head unit's speaker output and converts it to a clean, noise-free RCA signal for the amplifier. Eliminates alternator whine and signal noise.
Wiring
4-Gauge Amplifier Wiring Kit
4GA Kit
Correctly sized 4-gauge power and ground wiring for the GZIA 1500.1's power requirements. Proper gauge wire ensures full power delivery to the amplifier without voltage drop under load.
Installation
Professional Installation
Saint Nordic
Full professional installation by Saint Nordic Custom Autoworks — amplifier mounting, subwoofer installation, signal interface setup, wiring routed and secured, system tuned before delivery. 1-year labor warranty included.
Why This Kit
MATCHED.
TUNED. DONE.
The Hydrogen Kit isn't a collection of random components thrown together — it's a high-output system where every piece was selected because it works correctly with everything else. The GZIA 1500.1 is sized to match the GZHW 25XSPL-D2's 1200W RMS power handling. The signal interface eliminates noise that would otherwise degrade a high-power system. The wiring is the right gauge for the power level. And the sealed enclosure is matched to the sub's specs for the response curve it was designed to deliver.
670W
RMS @ 2 Ohms — GZIA 1500.1
Ground Zero GZHW 25XSPL-D2 — 1200W RMS · SPL-grade · Klippel® optimized
GZIA 1500.1 — Class D · 1-ohm stable · GZ-PowerBalance
Wavtech Link2 — clean signal from any head unit, factory or aftermarket
4GA amp kit — correct gauge for full power delivery
Sealed enclosure — tight, accurate bass · matched to sub specs
Professional install + 1-year labor warranty · Saint Nordic
Component Specifications
TECHNICAL
DETAILS.
Ground Zero GZHW 25XSPL-D2 — Subwoofer
Power Handling
1200W RMS / 2500W Max
Impedance
Dual 2-ohm (2 × 2Ω)
Voice Coil
63mm / 2.5" copper voice coil
Cone
Reinforced cone · Long-stroke compound surround
Basket
Solid aluminum cast basket
Optimization
Klippel® optimized
Ground Zero GZIA 1500.1 — Amplifier
Frequency Response
10–250 Hz
Crossover
Variable active LPF · Bass boost
Input
High-level input with auto-on function
Features
GZ-PowerBalance regulation · Triple protection circuit · Bass remote included
Package Contents
Subwoofer
Ground Zero GZHW 25XSPL-D2 10" — 1200W RMS
Amplifier
Ground Zero GZIA 1500.1 — 670W RMS @ 2Ω
Enclosure
Sealed subwoofer enclosure
Signal Interface
Wavtech Link2
Wiring
4-gauge amplifier wiring kit
Installation
Professional installation by Saint Nordic — 1-year labor warranty
Sale Price
$1,619.98 installed (regular $1,719.98 — save $100)
Saint Nordic Custom Autoworks
BOOK YOUR
INSTALL TODAY.
The Single 10" Hydrogen Kit — $1,619.98 installed at Saint Nordic Custom Autoworks in Spring Lake Park, MN. Everything included. Professional installation. 1-year labor warranty.
