A:AnswerOur JBL Club A600 Power output @ 4 ohms 350 watts RMS x 1 and Power output @ 2 ohms 600 watts RMS x 1. If you need more help, please contact us, so we can assist you: https://support.jbl.com/us/en/#contact
A:AnswerThis amp can put out 350w rms at 4 ohms and 600w rms at 2ohms. So it depends. If you got two 12s at 300w rms each at 2ohms you should be fine. Whatever you end up getting just be easy when adjusting do it in small increments an you should be fine.
A:AnswerI’m not really sure. You might just be adjusting it wrong. I had one 10inch kicker sub hooked up to it an it sounded great never had an issue with it.
A:AnswerProtect Mode on your JBL - Club 600W Class D Digital Mono Amplifier means that there is a problem with the system and prevents it from getting damaged. You could start by removing all the wires at the back of the unit and turning it on. If the protect mode is gone, there may be a shorted wire or a speaker with very low resistance.
