718d: 600w to 1200w - 18 Inch Power Tuned Subwoofer - DD Audio
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Subwoofer - Wikipedia
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DS18 ZXi8.4D High Excursion 8" Car Audio Subwoofer 1200W Watts DVC 4-Ohms Quad Stacked Magnets
1 MASTER AUDIO PA15/4 luidspreker woofer speaker 38,00 cm 380 mm 15" 280 watt rms 560 watt max impedantie 4 ohm auto gevoeligheid 97 db, 1 stuk : Amazon.nl: Elektronica
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Source 18 inch actieve auto subwoofer met computer on m.alibaba.com
EDGE 18 INCH SUBWOOFER 3600 WATTS CAR AUDIO BASS SPEAKER SALE! RRP £399.99 | eBay
Car Active 500W Spare Tire Active Bass Subwoofer 15/18 Inch Auto Audio Speaker - China Amplifier Subwoofer, High Power Subwoofers | Made-in -China.com
Zware 15 Inch Aluminium Frame 8000W Rms Auto Subwoofer - AliExpress
High Performance Car Accessories Woofer Electric Horn 15/18 Inch Car Audio Speakers Bass Speaker Powered Subwoofer Audio Speaker - China Audio Speaker, Car Speaker | Made-in-China.com
Zeroflex ZF181XL - 18-inch 4000RMS Car Subwoofer - TechCrazy NZ