Alpine SWE-1242 Type-E 12" 4-ohm subwoofer at Crutchfield Canada
Amazon.co.jp: Alpine SWE-1080 Powered Subwoofer, Under 7.9 inches (20 cm) Seat Mount Type & KTP-600 4-Channel Compact Digital Power Amplifier (Set Purchase) : Automotive
S-W10D2 | Alpine Electronics of Australia
Alpine HDZ-110 11" Status High-Resolution Subwoofer -
File:Alpine SBE-12BR and V-Power MRP-M350.jpg - Wikimedia Commons
Alpine S-SB12V 12" Subwoofer Box
Amazon.com: Alpine SWT-S10 1200W Max (250W RMS) Single 10" Sealed Subwoofer. : Electronics
Original ALPINE Subwoofer SWE-1895 | Shopee Malaysia
Alpine SBE-1044BR - 10" Bass Reflex Car Subwoofer 500W