JBL GTR601 Mono subwoofer amplifier — 600 watts RMS x 1 at 2 ohms - Used Acceptable - Creative Audio
JBL MPX300 2-Channel 300W Amplifier | Reverb
JBL Club A600 High Performance Compact Class D Car Audio Mono Subwoofer Amplifier Bundle with 12" 1000 Watt Peak Power Shallow Mount Car Audio Subwoofer and Amplifier Wiring Kit - Road Entertainment
DSi 2.0 Series | JBL Professional Loudspeakers
Amplifiers Jbl Stagea9004 Automobiles Car Electronics Cars Audio Sound Power Amplifier For Speakers Auto For Subwoofer Music Stage A9004 - Amplifiers - AliExpress