Proline X Single 10" Sealed Down-Fire System | Loaded with Arc Audio A10

The Proline X Single 10" Sealed Down-Fire System pairs the Arc Audio A10 10" shallow-mount subwoofer with a Proline X sealed down-fire enclosure built at our Tennessee facility. Net internal volume is 0.60 ft³ — centered within Arc Audio's published optimum range of 0.40–0.90 ft³ for the A10 in a sealed alignment. The down-fire orientation mounts the driver facing the floor, which keeps the cone protected from physical contact and allows the enclosure to sit flat in under-seat and trunk applications without the driver exposed. The A10 ships pre-wired to your selected impedance — Dual 2-ohm (wired parallel to 1 ohm) or Dual 4-ohm (wired parallel to 2 ohms). Select your amplifier's target impedance at checkout. Every panel is CNC-cut from 3/4" Langboard Elite MDF at our Tennessee facility — a mill-certified panel stock with a 200 psi internal bond rating, 410,000 psi modulus of elasticity, and 325 lb face screw holding strength. In a sealed enclosure, panel integrity is the entire acoust