The WDXPRO-MB12-4 is a 12-inch midbass speaker engineered for extreme high-output car audio systems. It features a 4.0″ high-temperature voice coil with a shorting ring, paired with a ferrite oxide magnet for superior power handling. The treated paper cone and cloth surround are optimized to deliver precise midbass frequency response and exceptional output performance. With a dynamic power handling of 4500 watts and a nominal power rating of 3000 watts, this speaker is built for unmatched performance and durability.
Features:
• 4.0″ High Temperature Voice Coil with Shorting Ring
• High Strength Ferrite Oxide magnet
• Treated Paper Cone with Cloth Surround
• Extreme Output Capability
• Die-Cast Aluminum Basket
• EVA Mounting gasket
• Compression Speaker terminals
Note: Sold as each
Specs
| Dynamic Power Handling: | 4500 Watts |
| Nominal Power Handling: | 3000 Watts |
| Impedance: | 4Ω Voice Coil |
| Resonant Frequency (fs): | 64.7 Hz |
| D.C. Voice Coil Resistance (Re): | 4Ω |
| Mechanical Quality Factor (Qms): | 4.84 |
| Electrical Quality Factor (Qes): | 0.36 |
| Total Quality Factor (Qts): | 0.34 |
| Equivalent Air Volume to Cms (Vas): | 18.7 L |
| Mass of Diaphragm/Coil (Mms): | 118.4 g |
| Force Factor (BL): | 19.3 |
| Sound Pressure Level (SPL): | 93.3 dB |
| Outside Diameter: | 12.32″ |
| Cutout Diameter: | 11.15″ |
| Mounting Depth: | 7.07″ |









