Hello I'm French and new on the forum. I saw videos on youtube of the modding Reisong A12 and it's great. So I bought the Reisong A10 and my question is: IS it possible to add a output rca on this on amp please? I would like to connect a preamplified home subwoofer on the Reisong A10. the output volume of the rca must vary in the same time of the speaker volume. This will make a 2.1 system. I hope someone can help me to do this please ? I thank you, 🙂