Hey 👋🏻 i hope everyone is have a great day.(04 midnight venture) I have a real quick question, about better quality amplifier that works best with the polk 4inch speakers. The thing is, my polk speakers are really high quality and good speakers (highly recommend! Very good quality music through those speakers) are playing very nice under 60km/h, but as soon as it hits above 60km/h, the speakers are starting to lose their quality (base e.t.c..) the volume is obviously going higher but the base is going down, i believe here are some good people who have experienced same, and found the solution to it. I believe it’s the amplifier issue, can anyone recommend how to solve this problem,(i’m a big fan of listening to music while riding a bike 🎶🥁🎸🥰)and what amplifier fits my 04 midnight venture, for those speakers. Thank you and ride safe everyone 🤝🏻 much love ❤️ (i’ll drop a picture of the speakers i got)