Alpine SWR-843D Type-R 8" Subwoofer with Dual 4-Ohm Voice Coils
by Alpine
Date first available at Amazon.com: April 18, 2011

Buy new: $109.00
7 used & new from $94.00

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Review & Description

Bass production is all about moving air and Alpine's Type-R subs do that better than ever. Advanced suspension features give these powerhouses the extra-long cone excursion needed to push large amounts of air, while the Kevlar® treated pulp woofer cone and big SantopreneTM rubber surround promote accurate response. Best of all, these subs feature shallower mounting depths than previous Type-R subs, so you can fit them into more spaces in your vehicle.The SWR-843D 8" subwoofer handles up to 350 watts RMS for big-time output, and its dual 4-ohm voice coils offer system wiring flexibility. It works well in sealed or ported enclosures so you can choose what kind of bass you want to hear and feel. The one-piece aluminum frame houses a heavy-duty magnet structure for increased accuracy and power handling, along with a special-design heatsink that shunts off excess heat for long-lasting reliability.Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible.

Product Details

• Amazon Sales Rank: #3844 in Consumer Electronics
• Brand: Alpine
• Model: SWR843D

Features

• 8" Subwoofer with Dual 4-Ohm Voice Coils
• Power Handling: 350W RMS / 900 W RMS
• Frequency Response: 28-200 Hz
• Sensitivity: 83.5 dB
• Top-Mount Depth: 4-1/2"