XD 1044

The American Bass XD-1044 is a 10-inch car subwoofer built for tight, controlled low-end output. It handles 450W RMS and peaks at 900W, so it stays composed during long listening sessions instead of straining at high volume. A 2.5-inch voice coil and 120 oz magnet keep heat and cone motion under control, and 11 mm of Xmax gives the cone room to move for deep notes with low distortion.

The dual 4-ohm configuration lets you wire for 2 ohms or 8 ohms, so it matches most mono and multi-channel amplifiers you already own, and it scales cleanly into dual-sub setups. With a 36 Hz free-air resonance and response below 500 Hz, it covers sub-bass duty in either box style. Build it in 1.25 cu ft sealed for tighter, more accurate bass in a car or truck cab, or 1.5 cu ft ported for higher output and more impact on the lowest notes. Mounting depth is 6.02 inches (153 mm), which fits behind-seat truck enclosures, prefab boxes, and custom trunk walls.

Sensitivity of 91 dB means usable volume from modest amplifier power, with headroom left when you feed it the full 450W RMS. That makes it a practical pick for a first single-sub build, a daily commuter system that has to keep up with road noise, or an SPL-focused install where consistent output matters more than one peak number.