Subwoofer ALPINE SWR-843D/8D4

8" Dual 4 ohm Type R Subwoofer

Power Handling:

• Peak: 1000 watts
• RMS: 150-350 watts

Kevlar reinforced pulp cone woofer

2-Piece Structural Parabolic diaphragm design

Injection molded Santoprene rubber surround

Alpine exclusive High Amplitude Multi-Roll (H.A.M.R) surround for impressive excursion and clean, accurate bass

FEA Optimized progressive NOMEX spider

Radial vented VC head sink

Concealed mount gasket system

Reinforced layer spider integration tinsel leads

Oversized 2-1/2" Voice coil

4-Layer dual voice coil design

Voice coil made from 180°C high temperature wire on spiral cut aluminum former

Single-piece cast aluminum frame with Alpine Patent Pending Airflow Management System for efficient cooling

Airflow Management system controls the temperature of the voice coil by directing the air across the heatsink

One sided push terminals make installation and wiring fast and simple

Each terminal accepts up to 8 AWG wire for high power signal transfer

Concealed gasket mounting system hides the screw holes and makes for a clean install

Integrated grill technology allows for a seamless installation of a grill

US Patented Compound Radius Curve (CRC) design with integrated short sleeve configuration

CRC Machined motor structure creates a symmetrical magnetic field for less distortion and improves power handling

High-power, double-stacked strontium magnet structure

Newly redesigned for a 20% depth reduction

Frequency response: 28-400 Hz

Sensitivity: 83.5 dB