Hi, I am not too sure unfortunately (and not to try with adapters). I bought this cable off amazon https://www.amazon.de/dp/B00LEXGI62/ref=pe_27091401_487027711_TE_SCE_3p_dp_2 which is ripcord brand but a eifferent basic look. It unfortunately does not specify in the product information if it is centre negative or positive. Hope it helps a bit anyway.