JBL GTO1214D 12" Grand Touring Series 1400W Subwoofer
GTO1214 | Powerful 12 inch 4-ohm Voice Coil Subwoofer
JBL GTO1002D Grand Touring Series 10" Dual 2 ohms Subwoofer GTO
Amazon.com: JBL GTO609C 270 Watts 6-1/2" Premium Car Audio Component Stereo Speaker System with Patented Plus One Woofer-Cone Technology : Electronics
JBL GTO1214D Grand Touring Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield
JBL GTO 1514 [While It Is An Entry Class High-quality Super-low-pass Playback Possible Unused Enclosure BOX Set ※ Parallel Imports Speaker Terminal Breakage | Sub Woofer with BOX | Croooober
Amazon.com: JBL GTO Series Premium 6 x 8 Inches Co-Axial Speakers Pair with Patented Plus One Woofer Cone, Silk Dome Tweeters - Set of 2 Bundled with Earbuds : Electronics
JBL GTO Series GT100 10" 4-Ohm Subwoofer at Crutchfield
JBL GTO1202D Grand Touring 12" Dual 2 ohms Subwoofer GTO 1202D #1077 Great Used Condition | Reverb
JBL GTO 1514 D | Sub Woofer Speakers | Croooober
Amazon.com: JBL Stadium 82SSI 8" (200mm) High-Performance Car Audio Subwoofer - Each : Electronics
GRAND TOURING GTO 1514 | 15 inch Subwoofer
JBL Grand Touring Series Bass Pack GTO1204BR enclosed subwoofer and GTO3501 mono sub amplifier at Crutchfield
JBL GT150 GTO Series 15" Component Subwoofer at Crutchfield