







Sundown Audio Horizon HZS 12" Subwoofer 600W RMS
Many in-stock orders ship within 1-2 business days, but timing varies by item. Custom, built-to-order, oversized, special-order and supplier-direct products may need extra processing time. Free shipping applies to qualifying orders over $99 in the contiguous US. Approved returns may be subject to a restocking fee.
Most products are covered by the manufacturer's warranty against defects. Damage from over-powering or improper installation isn't covered — we'll help coordinate any valid claim.
Tell us your vehicle, subwoofers and electrical setup and our team will help you match the right gear. Reach out before you buy.
Subwoofer Wiring Diagram
Select your configuration to view possible wiring combinations.
Loading wiring diagrams…
Diagrams are on our wiring diagram page.
- RMS Power — 600W
- Voice Coil — 2.5″ black aluminum former, Dual 4Ω
- Design — Shallow-mount, compact profile for space-restricted enclosures
- Cooling — Vented motor gap and solid pole piece
This Listing Includes: (1) Sundown Audio Horizon HZS 12″ Subwoofer
The Sundown Audio HZS is a shallow-mount subwoofer engineered to bring clean, powerful bass to space-limited installs — behind a truck seat, under a rear deck, or in a stealth build. Rated at 600 watts RMS, it features a 2.5″ black aluminum voice coil in Dual 4Ω, a high-roll surround, a progressive spider, and a vented motor design that keeps things cool when the music gets loud. A bolt-through motor assembly adds mechanical strength, and stitched mini-XL tinsel leads handle daily abuse. It thrives in ported enclosures for optimal output and is sealed-compatible as well. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.
Features
- 600W RMS shallow-mount design for restricted enclosures
- 2.5″ black aluminum voice coil former, Dual 4Ω
- Vented motor gap and solid pole piece for cooling
- High-roll surround and progressive spider
- Bolt-through motor assembly with stitched mini-XL tinsel leads
Specifications
| RMS Power | 600W |
| Voice Coil | 2.5″ black aluminum former, Dual 4Ω |
| Cooling | Vented motor gap and solid pole piece |
| Suspension | High-roll surround, progressive spider |
| Lead Wires | Stitched mini-XL tinsel leads |
| Best Use | Ported (optimal output); sealed compatible |


