Alpine - HDZ-W12 12" Subwoofer | 800W RMS, Dual 4-Ohm Voice Coils, Grille - Black/Gray

Alpine's Halo Series subwoofer enclosures make it easy to add more bass to your system. The pre-loaded R-Series 12" dual voice coil subwoofer provides plenty of bass on its own, but when you want even more, the optional linking kit can connect two together for double the impact.

ULTRA-SHALLOW DESIGN For those looking to add powerful, hard-hitting bass performance to their vehicle but lack the space to add a subwoofer, Alpine’s R-Series Shallow Subwoofer delivers the same fun and loud sound you’ve come to expect, now in a shallow subwoofer that’s designed to fit in most vehicle applications. EXTREME OUTPUT Don’t let the size fool you – the R-Series Shallow Subwoofers feature the same motor movement (20MM of excursion) as the full-size R2-Series Subwoofers for extreme output in a shallow woofer design. At the heart of the R-Series Shallow Subwoofers is an oversized 4-inch voice coil that houses the lightweight and powerful neodymium magnet for 600W RMS of power handling. Precise Bass Control Alpine’s Gen2 DD-Linear Magnetic Circuit technology, a compact and efficient dual-gap voice coil structure, allows for better control over the motor, resulting in lower distortion and precise bass control. FEATURES 12” High-Performance Shallow Bass Driver Alpine Gen2 DD Linear Magnetic Circuit Cast Aluminum Frame Aluminum Dust Cap Neodymium Magnet What's in the Box: 12” R-Series Shallow Subwoofer Owner’s Manual Warranty Information Online product registration information TECH SPECS Mounting Depth: 3.25” (82.55mm) X-Max: 20mm Voice Coil: 4”(102mm) Frequency response: 26Hz – 200Hz Sensitivity (1W/1M): 81bB Nominal Impedance: 4Ω 600W RMS / 1800W Peak Power Handling Compatible with KTE-RS12G Subwoofer Grille Kit (sold separately) RS-W12D4 - THIELE-SMALL PARAMETERS Sensitivity (1W/1m): 81 dB DC Resistance (Re): 3.6∆ + 3.6∆ Free Air Resonance (Fs): 29 Hz Equivalent Stiffness: 43.84 L Mechanical Q (Qms): 7.04 Electrical Q (Qes): 1.17 Total Q (Qts): 1.49 Cone Area (Sd): 572 sq cm Linear Excursion (Xmax): 20 mm Mechanical Travel (Xmech): 54 mm

The Memphis Audio PRX624 is a 6.5" subwoofer from the Power Reference series, engineered for reliable bass performance in a compact size. It features FLEX Selectable Impedance Technology, allowing configuration at 2Ω or 4Ω for flexible system design. DVVC Direct Voice Coil Cooling technology enhances heat dissipation, supporting consistent performance under load. A black polypropylene cone with double-stitched butyl rubber surround provides strength and controlled excursion. Reinforced spider shoulder and improved suspension and coil design contribute to durability and bass accuracy. The PRX624 also uses woven tinsel leads, a high-temperature TIL voice coil former, and a stamped steel frame for added reliability. Features • FLEX Selectable Impedance Technology (2Ω or 4Ω) • DVVC Direct Voice Coil Cooling • Black polypropylene cone • Double-stitched butyl rubber surround • Reinforced spider shoulder • Improved suspension and coil design • Woven tinsel leads • High-temperature TIL voice coil former • Stamped steel frame Specifications • Model: PRX624 • Size: 6.5" (165 mm) • RMS Power: 150W • Peak Power: 300W • Selectable Voice Coil: 2Ω or 4Ω • Sensitivity: 82 dB @ 2Ω / 82 dB @ 4Ω • Magnet Size: 41 oz • Mounting Depth: 3" (76 mm) • Cutout Diameter: 5.67" (144 mm) • Voice Coil Diameter: 1.5" (38 mm)