Sundown SML-Series 12″ D4 Thin Subwoofer
600 W RMS ultra-shallow 12-inch dual 4-ohm subwoofer
$299.99
Overview
The Sundown SML-12 D4 is an ultra-shallow 12-inch subwoofer rated 600 W RMS / 1200 W peak on dual 4-ohm voice coils. A black aluminum 2.5-inch voice coil former, high-temp 4-layer copper wire, vented pole and gap, dual-magnet motor, and bolt-through construction target deep bass in limited depth. Designed for small sealed enclosures in tight installs.
Product details
Thin high-output 12
Rated 600 W RMS / 1200 W peak with dual 2-ohm or dual 4-ohm coils. This listing is D4.

Build
Black aluminum 2.5-inch former, Mini-XL tinsel leads, vented pole-piece and gap, dual-magnet design, and bolt-through motor hardware.

Install notes
Plan a small sealed enclosure and check mounting depth plus excursion clearance for under-seat or shallow trunk locations.
Key features
- 12-inch SML thin subwoofer
- 600 W RMS / 1200 W peak
- Dual 4-ohm voice coils (D4)
- Black aluminum 2.5" voice coil former
- High-temp 4-layer copper coil wire
- Vented pole-piece and magnetic gap
- Dual-magnet design
- Bolt-through motor construction
- Stitched Mini-XL tinsel leads
Specifications
| Brand | Sundown |
|---|---|
| Model | SML-12 D4 |
| SKU | SML12D4 |
| Product type | Thin subwoofer |
| Size | 12 inch |
| Voice coils | Dual 4 ohm |
| RMS power | 600 W |
| Peak power | 1200 W |
| Voice coil | 2.5" aluminum former |
| Size | 12 inch |
Important notes
- Requires a compatible amplifier and small sealed enclosure (sold separately)
- Check shallow mounting depth and excursion clearance
- Professional installation recommended
What's in the box
- Sundown SML-12 D4 subwoofer
- Mounting hardware as packaged



