Sony CD player pushes out more sound from Zune/CDs then when having radio on?

Question

I have a Sony CD/MP3 player with AUX hook up. I use my zune player and CDs and noticed when I have the music volume say like on 5 it sounds much louder as compared to having it on 5 when having the radio on. I had a cd player before this one and it was the opposite the radio produced louder results at the same level compared to the CD and zune. Is that a normal thing? All the settings are maxed out. Any suggestions?

Answer 1

Cds and the Zune have better sound quality than songs on the radio.

Answer 2

sony is known for having a picky amplifier in its products it can be loud when it wants to