MTX T4510-44 10" DVC WOOFER MTX T4510-44 10" DVC (4 OHMS DUAL VOICE COIL) SUB-WOOFER RMS 225 WATTS, 4 OHMS IMPEDANCE GREAT FOR ADDING A LITTLE MORE BASS POWER PRICED AND SOLD AS EACH Ship From and Sold by CarAmpAndSpeaker