I have had both units P80 and 8850mp. I listened to p80 over 3 years, tunning the HU by different setting TA, EQ and .... but when I heard 8850mp for first time I was surprised. 8850 sound like cristal. It was amazing. It should be mentioned that I compared them in STD mode as a equal comparision. distortion in 8850 is less than p80 specially sounding voice "s". I suggest 8850mp because It is cheaper, sounds better in STD mode (cristal sound) and also could be found more for sale.