GTO1020 GTO1020D GTO1220 GTO1220D10" Automotive 10" Automotive subwoofer, 12" Automotive 12" Automotive subwoofer,subwoofer dual-voice coil subwoofer dual-voice coilPower handling (RMS) 300 Watts 300 Watts 300 Watts 300 WattsPower handling (Peak) 1200 Watts 1200 Watts 1200 Watts 1200 WattsSensitivity (2.83V/1m) 89dB 92dB 91dB 94dBFrequency response 25Hz – 500Hz 25Hz – 500Hz 20Hz – 450Hz 20Hz – 450HzImpedance 2 Ohms Dual 2 Ohms 2 Ohms Dual 2 OhmsMounting depth 6-1/16" (154mm) 6-1/16" (154mm) 6-13/16" (174mm) 6-13/16" (174mm)Cut-out diameter 9" (229mm) 9" (229mm) 10-7/8" (277mm) 10-7/8" (277mm)JBL Consumer Products • 250 Crossways Park Drive, Woodbury, NY 117971-800-336-4JBL (4525) • www.jbl.com©2002 JBL, Incorporated • JBL is a registered trademark of JBL, IncorporatedPart No. GTO1020-D/GTO1220-DOMSpecifications JBL GTO SeriesDeclaration of ConformityWe, Harman Consumer International2, route de Tours72500 Chateau-du-LoirFRANCEdeclare in own responsibility, that the products described in this owner’s manual are incompliance with technical standards:EN 50081-1:1992EN 50082-1:1997Emmanuel MillotHarman Consumer InternationalFRANCE. 2/02