Alpine X-W10D4 X-Series 10" subwoofer with Dual 4-ohm Voice coils ID
- 900W RMS, making it a perfect match for the X-Series X-A90M 900W mono amplifier
- 24mm linear Xmax (1 way), 48 mm peak to peak
- Dual spiders for precision control over the large dynamic range
- Dual shorting rings for strong motor control ensuring low THD and tight bass
- Center pole radial heat sink which wicks heat away from the voice coil and transfers it outside the motor, for long term high output