Green Bee Solutions Presents: Sundown Audio SA‑8 V.3 D2 — The 8" 500W RMS Mini‑Monster That Redefines Bass

At Green Bee Solutions, we don’t deal in “average.” We deal in weapons-grade bass, and the Sundown Audio SA‑8 V.3 D2 is exactly that — an 8" subwoofer engineered to hit like a heavyweight while fitting where bigger drivers can’t. With a true 500W RMS rating and Sundown’s legendary SA‑series motor design, this compact beast delivers violent low‑end authority with the precision and reliability Green Bee customers expect.

This driver is built for real output: a high‑energy motor, 18.94 N/A BL force, 144g moving mass, and a suspension system tuned for aggressive excursion without losing control. The SA‑8 V.3 D2 is the definition of small‑format domination — and Green Bee Solutions stands behind every watt.

Technical Specifications (D2) — Real Numbers for Real Builders

• DC Resistance (Re): 3.36 Ω
• Resonance Frequency (Fs): 38.29 Hz
• Equivalent Volume (Vas): 6.88 L
• Qes: 0.324
• Qms: 6.310
• Qts: 0.309
• BL Force Factor: 18.94 N/A
• Mms: 144 g
• Cms: 120 μm/N
• Sensitivity: 82.79 dB (1W/1m)

These specs aren’t for show — they’re the blueprint of an 8" sub that punches far above its size class.

Enclosure Recommendations — Build It Right, Make It Hurt

• Sealed: Not recommended
• Ported: 0.5 – 0.75 cu ft @ 35 Hz
• Displacement: 0.08 cu ft
• Mounting Depth: 6.625"
• Outside Diameter: 8.375"
• Cutout Diameter: 7.375"

This sub thrives in a properly tuned ported enclosure — give it the right airspace, and it will absolutely terrorize the low end.