LG 和 Samsung 用 PMPO, EDIFIER 用 RMS. The difference between PMPO and RMS Watts Those symbols are used for radio power. The real power is RMS (Root Mean Square), while PMPO means music power (Peak Music Power Output). How to compare those – you need to split PMPO by 3 and then you will get RMS (almost! not exacltly ). For example if you have JVC with 19W RMS / 50W PMPO. RMS is a voltage that is putting to the speaker in Constance way, without worry of s ... ...