🔥 Limited Time — $100 Off · Sale Price $1,264.98 · Regular $1,364.98
Saint Nordic · Bass Packages
GROUND ZERO · DUAL 12" · 700W RMS
IRIDIUM KIT.
A complete Ground Zero Iridium dual 12" bass system — two GZIW 300 S4 subwoofers, GZIA 1500.1 amplifier, sealed enclosure, signal interface, amp kit, and professional installation. Maximum Iridium output with 12" drivers.
Regular Price
$1,364.98
✓ Save $100
Installed package pricing · Includes everything listed below · Professional installation at Saint Nordic
Everything Included
6 Items
Complete System Package
EVERYTHING
INCLUDED.
The Dual 12" Iridium Kit steps up to 12" drivers — two GZIW 300 S4 subwoofers at 700W RMS combined — driven by the GZIA 1500.1. More cone area, more extension, same proven Iridium platform. Everything selected to work together. Nothing to source separately. Nothing left to figure out.
Subwoofer
Ground Zero Iridium 12" Subwoofers (×2)
GZIW 300 S4 ×2
350W RMS each · 700W RMS combined · Single 4-ohm voice coil · 50mm copper voice coil · Klippel® optimized · 3D HQPP cone · Long-stroke rubber surround · Resonance-free steel basket · 28mm Xmax
Amplifier
Ground Zero Iridium Mono Amplifier
GZIA 1500.1
775W RMS @ 2Ω · 1300W RMS @ 1Ω · Class D · 1-ohm stable · GZ-PowerBalance regulation · Variable 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 GZIW 300 S4 ×2 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 Dual 12" Iridium Kit isn't a collection of random components thrown together — it's a dual sub system where every piece was selected because it works correctly with everything else. Two GZIW 300s wired to present a 2Ω load to the GZIA 1500.1, which delivers 775W RMS into that load. The signal interface eliminates noise. The wiring is the right gauge. And the sealed enclosure is built for two 12" subs.
670W
RMS @ 2 Ohms — GZIA 1500.1
Ground Zero Iridium GZIW 300 S4 ×2 — 250W RMS · Klippel® optimized
GZIA 1500.1 — 775W RMS @ 2Ω · 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 GZIW 300 S4 ×2 — Subwoofer
Diameter
2× 12" (30 cm) — dual subwoofer configuration
Power Handling
350W RMS each · 700W RMS combined / 1000W Max combined
Impedance
Single 4-ohm (4Ω)
Voice Coil
50mm / 2" copper voice coil
Cone
3D HQPP cone · Long-stroke rubber surround
Basket
Resonance-free steel 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 GZIW 300 S4 ×2 10" — 250W RMS
Amplifier
Ground Zero GZIA 1500.1 — 775W 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
$1,264.98 installed (regular $1,364.98 — save $100)
Saint Nordic Custom Autoworks
BOOK YOUR
INSTALL TODAY.
The Dual 12" Iridium Kit — $1,264.98 installed at Saint Nordic Custom Autoworks in Spring Lake Park, MN. Everything included. Professional installation. 1-year labor warranty.
