Belva BBX112BK Single 12" Ported Enclosure Custom Baffle - Enclosure - for subwoofer - MDF, carpet - black, high gloss black - Walmart.com
Audiophile-grade 15" Open Baffle Woofers
One unit (not pair) |15 Inch Woofer for Bass Compensation of Open Baffle or Cabinet | W-15 - Lii Audio, unique speaker, amplfier, quality and cost-saving parts for HiFi DIY
SB Audience Introduces Bianco 12 and 15-inch Woofers Optimized for Open Baffle Designs | audioXpress
File:Large infinite baffle subwoofer with 18 inch woofer driver.JPG - Wikimedia Commons
Car Audio System 12" 450W RMS Infinite Baffle Dual 4 Ohms Car Subwoofer, 4 ohm car subwoofer 450W RMS speaker car audio system - Buy China Car Subwoofer on Globalsources.com