DB Drive DX-S4 : 4 in. 2-way Loudspeaker Marine Enclosed Systems Subwoofer so you'll enjoy the kind

so you'll enjoy the kind of impact you expect from Alpine

The MediaMaster 55 marine source unit also includes certified NMEA 2000® network connectivity

Our patented 10TW3 thin-line driver is the engine inside this Stealthbox® system

ferrite magnet work together to produce deep

DB Drive DX-S4 : 4 in. 2-way Loudspeaker Marine Enclosed Systems Subwoofer so you'll enjoy the kindFeatures 0. 50" PEI dome tweeter with optimized off axis frequency response Injection molded PP composite midrange Cone with rubber surround 1" oversized midrange voice coil with enhanced thermal capacity Optimized frequency bandwidth design Forged motor plates with linear gauss geometry Ferrite oxide magnet with optimized motor force Stamp cast steel basket Onboard 6db crossover Specifications Max Power : 140 Watts Nominal Power Handling : 45 Watts