Sundown Audio SML 10" 500W RMS Dual 4 Ohm Subwoofer SML-10-D4

• RMS Power = 500-watts
• Stitched-On “Mini-XL” Tinsel Leads to prevent fatigue and failure
• Dual-Magnet Design for appropriate motor force factor and mid QTS
• Xmax = 11mm one-way by 70% BL
• Product Dimensions:

This Listing Includes:

• (1) Sundown Audio SML 10" 500W RMS Dual 4 Ohm Subwoofer SML-10-D4

The Sundown Audio SML 10" Subwoofer is built for powerful and reliable bass performance in a compact design. With a 500W RMS power rating, this subwoofer delivers deep, controlled low frequencies while maintaining efficiency and durability. Its bolt-through motor design eliminates visible bolts for a clean, seamless look, while the black aluminum 2.5" voice coil former enhances heat dissipation for long-lasting performance. The high-temperature 4-layer copper voice coil ensures stability under demanding conditions, and the dual-magnet design, vented pole-piece, and multi-vented magnetic gap optimize airflow for improved cooling. Engineered with precision, the SML-10-D4 produces low-distortion bass with a custom-tooled cone shape that reduces mechanical noise during high excursion. Whether you're upgrading your car audio system or building a high-performance setup, this subwoofer is designed to deliver exceptional sound quality and durability.

** This motor is bolted through the top so the bolts are not visible from the back like several other models.

Key Features

• Black Aluminum 2.5" voice coil former for superior heat dissipation


• High Temperature 4-Layer copper voice coil wire


• Stitched-On "Mini-XL" Tinsel Leads to prevent fatigue and failure


• Vented Pole-Piece and Multi-Vented Magnetic Gap


• Dual-Magnet Design for appropriate motor force factor and mid QTS


• Custom tooled cone shape for reduced mechanical noise over high excursion


• Bolt-through motor design to ensure maximum longevity and ruggedness against mechanical failures


• Magnet ID shorting ring

Subwoofer Specifications:

• Xmax: 11mm one-way by 70% BL


• Xmech is a hard limit of 25mm one-way for 12s and 20mm one-way for 10s


• RMS Power: 500 Watts


• RE (Ohms) - 6.850


• FS (Hz) - 36.116


• VAS (L) - 24.828


• Qes - 0.469


• Qms - 2.766


• Qts - 0.401


• BL (NA) - 21.022


• Mms (Grams) - 133.242


• Cms (uM/N) - 145.749


• Sens (dB @ 1w/1m) - 85.8dB