Razer Man OWar On Ps4

Hey, I just got a pair of razer man o wars for gaming on PC and PS4, I love them they’re great and the best I’ve ever had for PC . Problem is I play on PS4 more because my PC is rubbish.The man o wars are EXTREMELY limited on PS4 as they’re wireless and don’t use the 3.5mm jack. (No 7.1 etc) but the major problem is The volume is too low and there’s no way to turn em up other than the audio settings on the PS4 (which are at max) .Obviously I can’t adjust it from the headset itself, and synapse settings only work for PC. So am I missing something here or is there no way at all I could adjust the volume other than through the Settings on the PS4? Even if there was something I could buy like some sort of amp ? Really going out on a limb here but any help would be greatly appreciated Thanks