DC Audio M4 8" Subwoofer

DC Audio M4 8" Subwoofer is a high-power 8-inch woofer engineered for deep bass in demanding car installs, available in D2 and D4 configurations with 800W RMS / 1600W peak. Its tall roll stitched surround, oversized spiders, and gap-cooled 2.5" copper voice coil deliver linear performance under high power.

• Power handling: 800W RMS / 1600W peak. In real-world use this means the driver can sustain substantial continuous and peak bass energy without thermal compression, provided it’s paired with a suitable amplifier and enclosure.
• Voice coil: DVC 2.5" Copper voice coil. A larger coil surface area improves heat transfer and allows higher power handling for sustained low-frequency excursion.
• Gap cooled design: Enables the 2.5" voice coil to thermally take more power than the M3. This translates to greater thermal headroom during demanding musical peaks.
• Cone and surround: Extremely rigid non-pressed paper cone assembly; High Roll Stitched Multilayered reinforced polymer foam surround. Together they improve stiffness and excursion control for cleaner bass at high output.
• Frame and motor: Custom Cast aluminum black frame; FEA analyzed and optimized motor assembly – Fully CNC machined. This combination yields a robust, consistent motor structure with precise tolerances for linear motion.
• Spiders and lead wires: Bolted down & spaced Linear roll spiders; Sewn flat heavy duty tinsel lead wire. These features help keep the moving assembly stable and reduce distortion under heavy duty use.
• Gasket and boot: Rubber mounting gasket and custom tooled motor boot. Provides a solid seal and reliable mounting interface in a variety of enclosures.
• Impedance options: DVC 2.5” copper voice coil with D2 or D4 options. Allows integration with different amplifier loads and wiring configurations.
• Dimensions and data: Mounting Depth 7.0" (D2/D4); Mounting Hole Diameter 7.5"; Outside Driver Diameter 8.75"; VC Diameter 2.5"; Displacement 0.15 ft³; Xmax 19 mm; Sd 188.69 cm²; Re 4.0 Ohm (D2) / 8.0 Ohm (D4); Vas 1.728 Ltr (D2) / 1.790 Ltr (D4); Fs 44.5 Hz (D2) / 47.4 Hz (D4); Qms 4.54 (D2) / 4.81 (D4); Qes 0.614 (D2) / 0.700 (D4); Qts 0.538 (D2) / 0.652 (D4); Ref SPL @1W 78.4 dB (D2) / 78.0 dB (D4); Ported box suggestion 0.85 ft³.

Benefits: In a high-power system, the M4 8 excels in a compact enclosure thanks to its 0.15 ft³ displacement and 19 mm Xmax, delivering strong low-end extension with controlled cone motion. The 2.5" copper voice coil and gap-cooled design provide thermal resilience for demanding music and loud listening sessions. The dual impedance options (D2/D4) let you tailor the load to your amplifier and wiring, while the rigid cone, reinforced surround, and CNC-machined motor assembly ensure consistent performance with minimal distortion. With a 7.0" mounting depth and a 0.85 ft³ ported box suggestion, it fits a range of installations where deep bass and high headroom are priorities.