Alpine SWR1242D 12" Dual 4-Ohm Subwoofer

If you love bass, then you want to add Type-R subwoofers to your system. Not just any bass, Type-R subwoofers are designed to deliver deep, accurate bass. HAMR Engineering is Alpine's exclusive subwoofer solution for cooler operation, longer life, and tight, accurate bass. The main philosophy behind HAMR Engineering is to ensure the ultimate sound quality and performance through the use of highly advanced materials and patented design technologies. With increased power handling and exclusive cooling technologies, it’s no wonder the Type-R’s still remain one of the best selling woofers in the U.S. Add yours today!

The pulp cone has been reinforced with Kevlar® (the material used in bulletproof vests) for extra rigidity, so it won't buckle under hard play. A rubber surround helps to maximize cone travel for deep bass, while withstanding the decay that can destroy a speaker. A redesigned thermal management system and aluminum airflow motor cover shed heat quickly for efficient operation and better power handling.

The 2" dual 4-ohm voice coils are big enough to handle lots of power while offering system-wiring flexibility. The tinsel leads are virtually unbreakable — they're woven into the dual progressive Nomex spiders. An aluminum diecast frame provides a secure, non-resonant housing. The SWR-1242D is designed for use in sealed or ported enclosures.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation.

Priced per subwoofer.

Features

• Kevlar®-Reinforced Pulp Cone
• Bumped Backplate
• Compound Radius Curve Pole Geometry
• Custom Cast Aluminum Frame with Integrated Heat Transfer Plate
• Designed and Engineered in the USA
• Dual Progressive Oversized Nomex ® Spiders
• Dual Stacked Magnets
• Dual Voice Coil Design
• Extra Length Extended Pole
• Flared Pole Vent
• High Strength Brass Voice Coil Bobbin
• Integrated Tinsel Lead Design
• Magnetically Optimized Motor Structure (Pat. Pend.)
• Oversized Parabolic Dustcap
• Designed and Engineered in the USA

Specifications

• Sensitivity: 87 dB
• RMS Power Range : 50-500 Watts
• Peak Power Handling: 1500 Watts
• Impedance: Dual 4 Ohm
• Low Frequency response: 24 Hz
• High Frequency Response: 500 Hz