The JBL GTO939 is a 6×9 three-way car speaker designed for vehicles with 6×9 speaker openings. It delivers a broad frequency response and high sensitivity for clear playback at varied power levels.

Rated for 5W-200W RMS and 300W peak, the speaker has a nominal impedance of 3 ohms and a frequency range of 46Hz-21kHz. Mounting cutout diameter is 8-5/8 in with a mounting depth of 2-13/16 in, making it suitable for many factory and aftermarket 6×9 locations and standard speaker wiring connections.