Hello, so I have the following problem. My sub, a JL 12w0 ran perfectly on my brittle LA Bolt (2channels=200RMS). Now I have my front system running on 2channels and my rear system running on 2channels minimally. For the sub I installed a Q22, seperate 35qmm cable, so fits. Power amplifier running, wiring fits, Line IN is connected. The 2channels of the Q-22 should deliver >400RMS. So there should be something in there with my sub denk I. Anyway it should be louder than too And that’s the problem. In my opinion, it’s all quite frequently separated. However, the sub VIEEEEELLLLLL is too quiet and you can only hear it when the front system beats badly. Then I gave the front system about 70% of the LA Bolt and gave the sub-end stage almost full Pulle 400RMS, but the sub still doesn’t get in motion. I connected both channels individually to the sub and both channels work. But only very quiet and with I also measured the voltage, both on the battery and at the power level settings are 12V. I have small loss at the power levels! Both power levels are also green and report ok! I have no idea why the subwoofer doesn’t sound the same as before. It seems to me to be quieter with the NEXT Q22 than with only 2 channels of the brittle LA Bolt! What’s going on? It’s also a nimble new power stage, d he Next I didn’t buy used! Can someone please help me I despair already slowly on the whole thing. And I slowly hangs out really. I also don’t know how I could check the output power of the Q22, if there is something broken. THANK YOU !!!!