The Sundown Audio SA-Classic 10" D4 subwoofer is engineered for a combination of power handling and excursion, making it suitable for a variety of audio systems. This model features Dual 4-Ohm voice coils and is designed to perform reliably in any standard enclosure type.
The D4 subwoofer provides robust performance metrics:
Power Rating: Handles 1000 Watts RMS (2000 Watts Peak) power.
Excursion: Features 19mm of Xmax (one-way linear excursion) for enhanced low-frequency output.
T/S Parameters: Re 7.08 Ω, Fs 36.6 Hz, VAS 10.66 L, Qts 0.49

The SA-Classic is built with durable, quality components:
Frame: Features a high strength cast aluminum frame for stability.
Motor: Low distortion motor construction includes a large aluminum Faraday ring for smooth acoustic response.
Voice Coil: Incorporates a custom 2.5-inch high-temperature voice coil and a robust double-layered Nomex spider.
Connectivity: Equipped with spring-loaded terminals and stitched-on "XL" tinsel lead wires.
Optimized for compact integration and installation flexibility:
Recommended Sealed Enclosure: 0.5 cu ft.
Recommended Ported Enclosure: 1.0 cu ft, tuned to 35Hz with a 15 sq in port area.
Depth: 6 inches.
Cut-Out Diameter: 9.25 inches.
Displacement: 0.1 cu ft.
The Sundown Audio SA-Classic 10" D4 subwoofer provides a stable foundation for a wide range of audio systems, delivering both power and flexible installation options.