Alpine SWR-1542D 15" Dual 4-Ohm Subwoofer

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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 standing up to the decay that can destroy a speaker. Air vents help the sub shed heat quickly for efficient operation and better power handling.

The two 2" voice coils handle lots of power while offering system wiring flexibility. The tinsel leads are virtually unbreakable — they're woven into the spiders. An aluminum diecast frame provides a secure, non-resonant housing. The SWR-1542D 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

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

Specifications

• Power Handling Capacity (Peak) : 2000W
• Power Handling Capacity (RMS) : 750W
• Frequency response: 20-400 Hz
• Sensitivity: 87 dB
• Sealed box volume: 1.30-2.50 cu. ft.
• Ported box volume: 1.50-3.00 cu. ft.
• Recommended Q-Logic Box Type: 1, 2
• Warranty: 1 year