Trinity Audio Solutions H Series 18" Subwoofer — 3,500W RMS Dual Voice Coil

SKU: H18D1
Sale price$964.99 Regular price$989.99
Sold outSave $25.00

Impedance: Dual 1 Ohm
Subwoofer Wiring Diagram

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The Trinity Audio Solutions H Series 18" brings competition-level output to bassheads who demand thunderous, controlled low end. Its quad-stacked ferrite motor carries over 33% more ferrite than the M Series and is FEA-optimized for airflow and heat dissipation so it holds up under punishing power.

A triple-layer foam high-excursion surround, rigid composite paper cone with carbon-fiber dustcap, 10" quad-layer progressive spider pack, and a 4" BASV high-temperature dual voice coil combine for massive, accurate excursion. Ideal for ported or bandpass builds, it comes in Dual 1 Ohm and Dual 2 Ohm configurations with recone options and a 1-year manufacturer warranty.

Specifications

RMS Power 3,500W
Peak Power 9,000W
Voice Coil 4" BASV high-temperature dual (3.5" 60mm)
Motor Quad-stacked ferrite (FEA-optimized)
Surround Triple-layer foam high-excursion
Cone Composite paper with carbon-fiber dustcap
Spider 10" quad-layer progressive pack
Xmax 32mm
SPL 89.4 dB
Outer Diameter 18.45 in
Cutout Diameter 16.77 in
Mounting Depth 12 in
Displacement 0.56 ft³
Coil Configurations Dual 1 Ohm, Dual 2 Ohm

JS Ultimate Sounds is an authorized Trinity Audio Solutions dealer. Every product is 100% genuine and backed by full manufacturer warranty. Questions about fitment, wiring, or building your system? Our car-audio experts are here to help — reach out any time.