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DC Audio M3 8" Dual‑4 Subwoofer — Small Driver, Massive Output
Built for builders who demand extreme excursion and real low‑end from a compact package, the M3 8 is an 8‑inch long‑Xmax subwoofer engineered to move air like a much larger driver. After extensive R&D, DC Audio redesigned the surround, spiders, and frame to deliver huge cone travel, linear response, and low‑frequency authority without the usual distortion.
Why It Matters
- Extreme excursion with a tall roll‑stitched surround and oversized spiders for deep, controlled bass.
- Gap‑cooled 2" copper voice coil for superior thermal handling and sustained power delivery.
- Bolted spaced‑spider design keeps motion linear under heavy load.
- Tall cast frame and rigid cone architecture for durability and minimal breakup.
- Optimized for small enclosures so you get big output in tight spaces.
Key Specs
- Sub Size: 8 inch
- Mounting Depth: 5.75 inch
- Mounting Hole Diameter: 7.25 inch
- Outside Diameter: 8.5 inch
- Weight: 18 lb
- Voice Coil Diameter: 2 inch
- Magnet Weight: 15 lb
- Power Handling RMS / Peak: 600 W / 1200 W
- Impedance Options: Dual 2Ω / Dual 4Ω
- Xmax: 18 mm one‑way
- Fs: 35.3 Hz
- Sd: 201.93 cm²
- Vas: 7.3 L
- Cms: 0.135 mm/N
- Mms: 150.66 g
- BL: 17.9 N/A
- Re: 6.28 Ω
- Le: 5 mH
- Qms: 6.68
- Qes: 0.66
- Qts: 0.601
- Ref SPL @ 1W: 78.7 dB
Enclosure Recommendations
- Sealed: 0.1 cu ft for tight, punchy response.
- Ported: 0.75 cu ft for maximum output and deeper extension.
Bottom Line
If you want an 8‑inch sub that behaves like a heavyweight, the M3 8 is your weapon of choice. It’s engineered for extreme excursion, thermal stability, and clean low‑frequency output in compact builds — perfect for tight trunks, custom enclosures, and high‑performance systems that refuse to compromise.
Green Bee Solutions — small footprint, seismic results.