BLACK DIAMOND DIA-10D4 10" Car Subwoofer — 440W Max / 220W RMS, Dual 4 Ohms DVC (1 Speaker)

Engineered for serious audiophiles, the Black Diamond DIA-10D4 10" subwoofer delivers deep, controlled bass comparable to units priced much higher. This single speaker is rated 440W max and 220W RMS, designed to handle high output without strain. Build quality includes a Kevlar dust cap and foam edges for durability, plus a Ferrite magnet that supports a wider tonal range and strong power handling at elevated volumes. The dual voice coil (DVC) design (Dual 4 Ohms) provides flexible wiring options — Parallel, Series, or Independent — so you can configure it to suit your system and amplifier. Reliable performance and solid features make this an affordable, high-value choice for upgrades or new audio installs.