Amazon.com: H YANKA 6.5 Component Car Speakers, 550 Watt Pro Car Audio 4 Ohms Stereo Door Speakers Perfect for Upgrading Any Car Stereo System Includes a Pair of Midrange Woofers,Tweeters, and Crossovers(Pair) :
Hifonics ZSW6 16,5 CM (6.5 ") Kickbass Deep mid-Range Woofer Speaker 200 W 4251476401839 | eBay
HELIX P 6B - 16,5 cm / 6,5" midbass speaker — Automotive | Axiomedia
PNI HiFi650 120W 16.5 cm Coaxial Speakers Black | Techinn
16,5cm 250W Max. car woofer 4 Ohm bass speaker CarHifi Hertz ML 1650.3 - PAIR | eBay
HELIX P 6B - 16,5 cm / 6,5" midbass speaker — Automotive | Axiomedia
Crunch GTI-6.2W Woofer Set Woofer-Paar 16,5 CM Power 100/200 Watt GTI6.2W 806586210747 | eBay
Amazon.com: Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, White), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System : Electronics
Alpine - SPC-106S907 16,5 cm Component Speaker System for Mercedes-Benz Sprinter 907 / 910
Audio Development ESA BASS midwoofer 16,5 cm
ESX VS-165W BMW - 16,5 cm Bass Speakers (Pair) VISION series ...
HELIX P 6B - 16,5 cm / 6,5" midbass speaker — Automotive | Axiomedia
Amazon.com: Pyle 5 Inch Woofer Driver - Upgraded 200 Watt Peak High Performance Mid-Bass Mid-Range Car Speaker 450Hz - 7kHz Frequency Response 15 Oz Magnet Structure 8 Ohm w/ 92dB and Paper
ESX QXB6 16,5 CM (6.5”) Bass Reflex Subwoofer System 500 Watt 4251476408302 | eBay
Focal PS165FXE 2-Wege Combo Speaker 2-Wege 16,5 CM Components/Speaker Set 3544055750727 | eBay
120 Watt 16,5 CM 2-Wege Car Speaker Component System AXTON ATC165 7612309103424 | eBay